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• Stuck on Ubuntu Startup Screen

  - by Pietro

  Since yesterday, my system won't get past the startup screen (the Ubuntu logo with the blinking red dots). I left it for over an hour and didn't get the login screen. It was working normally before that and I don't recall any changes (no new software, etc). I can login through the terminal with ALT+F1 but I don't know what to do to get the graphic mode. The command startx fails. I'm running Ubuntu 12.10 64 bits on a Core I5 with Intel motherboard. No video card or sound card.

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• How to get KeePass to properly work with Chromium?

  - by Tom

  The two-channel auto-type obfuscation feature of KeePass doesn't work for me with Chromium (on Ubuntu 12.04 64 bits). However, it works just fine with Firefox. Dows anyone know how to fix this? Textboxes in web forms in Chromium seems to have something special that causes this feature to fail. Only some of the username/password characters are being auto-typed. This might be related to this: if I select an entry in KeePass and click "Copy User Name", I can paste it fine with Ctrl+V in any textbox in Firefox, but I can't on Chromium. However, text copied using Ctrl+C from a regular text file (say, from gedit), can be pasted fine on both browsers. What may be wrong? I wouldn't like to deactive this feature for all the entries in my keepass files as I use them on Windows too and they work just fine there (even on Google Chrome for Windows). This feature gives an appreciated extra security measure against spyware/keyloggers.

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• Windows 7 and 11.10 side by side from scratch what am I doing wrong?

  - by Bill.Caffery

  I have tried everything I can think of at this point and I'm at a total loss. I have a 2TB drive I want to install Windows 7 and 11.10 (both are 64 bit) side by side, but once I install Windows it must need gpt to work or something because no matter how many times I've removed it, it always returns. If I use gdisk and set the disk as mbr, Windows won't load. Now this last time I ran gdisk and tried to boot into Windows before I installed Ubuntu all the way and ended up at a grub rescue prompt. Any help please? Also let me say I have been searching and reading for days and have tried everything I can find to make this work so this isn't a one time event, it's continual.

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• Java installation for Solaris Studio 12.2

  - by DemiSheep

  I have Solaris Studio almost working. My only issue seems to be Java. Here is what I get: ============================ aflory@aflory-laptop:~$ solstudio & [1] 1723 aflory@aflory-laptop:~$ Solaris Studio is unable to find a supported version of Java. Solaris Studio supports Java version 1.6.0_13 and newer and looks for a valid Java installation in the following order: 1) Location specified with --jdkhome command line option 2) In PATH environment variable 3) At /usr/jdk/latest location, if exists 4) At /usr/java location, if exists 5) At /usr location, if exists ============================ I try typing --jdkhome in the console but I get an command not found error. I have added the following to my /home/aflory/.bashrc file: PATH=$PATH:/usr/java/jdk1.6.0_24/bin:/home/aflory/solstudio12.2/bin export PATH I am running Ubuntu 10.04 64bit. I tried installing the 64 bit version of Java JDK, then I tried installing the 32bit version of Java JDK. I don't believe there is a 64bit version of Solaris Studio.

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• kubuntu 12.04 runs slowly

  - by randy

  i have a 3ghz amd 64 dual core am3 socket processor, asus mom board, 4GB ram, 8800GTS nividia video card with 500MB ram. installed kubuntu 12.04 and very laggy. select menu and 20 seconds later the menu pops up. i switched to classic menu and that seemed to help. what direction should i look first to get this running better? video perhaps? i had ubuntu 11.04 on this machine previously and had no problems with speed.

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• Ubuntu slows down even after cpu-intensive process is ended

  - by Matt2

  After a Skype video call, or the use of virtualbox, Ubuntu slows down to a crawl, even after the process is ended. Running htop reveals that processes that used little CPU before are now all using about 30% cpu (namely Compiz, Firefox, Python, and Skype, but I'm sure there are others), to the point where all my cores are at 99%. All I can do from here is restart. Any idea why this is happpening? I'm running Ubuntu 12.04 64-bit on 3.7 GiB of memory, Intel® Core™ i3 CPU M 330 @ 2.13GHz × 4, VESA: M92 graphics driver. Not sure why I'm running VESA, I installed fglrx, but I suppose that's a different question. Thanks in advance!

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• Ubuntu 12.10 64 bit Slow

  - by Patrick Skiba

  I am new to linux and was wondering why launching applications is so slow. I've tried both Ubuntu 12.10 64 bit and Ubuntu 12.04 LTS 64 bit Computer Specs: Toshiba Satellite p755 CPU: Intel core i7-2670QM @2.20GHz Ram: 8 GB Using integrated intel hd 3000 graphics When I install the first thing I do is update, which takes about an hour or so. I would assume I'd be good after that, but when launching things like the firefox, system settings, thunderbird it takes a much much longer time than on Windows 7. Please help me.

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• Not sure which Ubuntu to install (64 or 32 bit)

  - by user285993

  I want to use Ubuntu. I have Win 7 Home Premium 32-bit right now... I used to have 64 on this laptop (Toshiba Satellite c650) but my disc got a ring of death. Intel Penium CPU B940 2.00GHz, 4GB RAM Also, I'm guessing I need an image mounter such as PowerISO to install Ubuntu, if I don't have a DVD lying around that I can mount to? I'm a noob. Thanks for your help, in advance. EDIT: My question wasn't clear... can my processor and RAM handle 64-bit Ubuntu? Hell of a lot nicer than Win7

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• How do I get this Cisco VPN client to connect?

  - by WebWeasel

  I've got Ubuntu 10.10 64 bit and installed network-manager-vpnc and configured the connection but I keep getting this: NetworkManager[1217]: <info> Starting VPN service 'org.freedesktop.NetworkManager.vpnc'... NetworkManager[1217]: <info> VPN service 'org.freedesktop.NetworkManager.vpnc' started (org.freedesktop.NetworkManager.vpnc), PID 4420 NetworkManager[1217]: <info> VPN service 'org.freedesktop.NetworkManager.vpnc' appeared, activating connections NetworkManager[1217]: <info> VPN plugin state changed: 1 NetworkManager[1217]: <info> VPN plugin state changed: 3 NetworkManager[1217]: <info> VPN connection 'CSI' (Connect) reply received. modem-manager: (net/tun0): could not get port's parent device NetworkManager[1217]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/tun0, iface: tun0) NetworkManager[1217]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/tun0, iface: tun0): no ifupdown configuration found. kernel: [ 2281.723506] tun0: Disabled Privacy Extensions avahi-daemon[1109]: Withdrawing workstation service for tun0. NetworkManager[1217]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/tun0, iface: tun0) NetworkManager[1217]: <warn> VPN plugin failed: 1 NetworkManager[1217]: <info> VPN plugin state changed: 6 NetworkManager[1217]: <info> VPN plugin state change reason: 0 NetworkManager[1217]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active. NetworkManager[1217]: <info> Policy set 'Auto eth0' (eth0) as default for IPv4 routing and DNS. NetworkManager[1217]: <info> Starting VPN service 'org.freedesktop.NetworkManager.vpnc'... NetworkManager[1217]: <info> VPN service 'org.freedesktop.NetworkManager.vpnc' started (org.freedesktop.NetworkManager.vpnc), PID 4547 NetworkManager[1217]: <info> VPN service 'org.freedesktop.NetworkManager.vpnc' appeared, activating connections NetworkManager[1217]: <info> VPN plugin state changed: 1 NetworkManager[1217]: <info> VPN plugin state changed: 3 I've seen a couple of bugs on Launchpad that could be the same thing or have I done something wrong?

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• How to install Canon MP610 printer on Ubuntu 12.04 x64

  - by Arkadius

  I installed Ubuntu 12.04 x64. Orginal Canon drivers are only for 32-bit version. How can I install this printer in 64-bit version ? Arkadius HERE IS SOLUTION I looked for solution some time and finally found it. First I try to do it by adding repository like it is written here: http://www.iheartubuntu.com/2012/02/install-canon-printer-for-ubuntu-linux.html BUT it did NOT work. Printer was installed but every print JOB goes somewhere ( probably to /dev/null :) ) Also installing sudo apt-get install ia32-libs did NOT worked (it was already installed) Finally I found solution. NOTE I did NOT use orginal Canon drivers for 32-bit. I also removed drivers from repository: ppa:michael-gruz/canon I found solution almost at the end of this thread: http://ubuntuforums.org/showthread.php?t=1967725&page=10 Most important hint was found in Response #97 "Do NOT install any PPA" I did as follows: Removed all copies of my printer Removed Canon drivers from repository ppa:michael-gruz/canon sudo apt-get remove cnijfilter* Added new repository and installed CUPS for Canon: sudo apt-add-repository ppa:robbiew/cups-bjnp sudo apt-get update sudo apt-get install cups-bjnp Installed Gutenprint: sudo apt-get install printer-driver-gutenprint Restarted CUPS: sudo restart cups Add myself to group lp: sudo usermod -G lp -a your_user_name Added printer usings steps from link above: Don't install any PPA for the drivers. Click the Cog up in the right-hand corner and select Printers. Turn on the printer and make sure it is connected. When the Printers windows appears, click +Add and wait a few minutes. Your printer should appear within the configuration wizard. Mine did and its an Canon MX330. Click the defaults and continue on. Cups should identify your printer. I saw a few other models in the list. I was able to successfully print a test page afterwards. I hope this will also help someone else. Arkadius .

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• Black screen on login, can get thru decrypt disk and access command line but no GUI

  - by t3lf3c

  Running 12.04 64 bit fresh alternative install, with disk crypto on a new Lenovo laptop Install didn't connect and install modules, even though I had the network cable plugged in and don't have any whacky proxy settings. I had to manually install ubunut-desktop and define sources after initial installation, so this seemed a bit weird (ISO matched MD5 sum though) I unplug the network cable, otherwise I get a black screen that I can do nothing with. So I turn laptop on, I have disk encryption, I type in the password at the Ubuntu decryption GUI then get "set up successfully" message "Waiting for network configuration ..." then "Waiting for up to 60 more seconds for network configuration" At this stage (a) If I wait for it then I get a black screen that I can do nothing with. (b) If I interrupt the process by pressing escape, then I break through to the command line. From the command line, I can go ahead and login, then plug my network cable in to do apt-get commands. As a precaution I do some house keeping which takes a few mins to run: sudo apt-get update sudo apt-get upgrade Running startx to get to the GUI gives: Fatal server errror: no screens found The .Xauthority file is being created in my home directory but it's empty. I review my order and note the system graphics: Intel HD Graphics (WWAN or mSATA capable) So it's weird that I can't get to the Gnome. It looks like drivers aren't working. Is there a way of getting Intel drivers from the command line? Or do you have any other suggestions on what to try next?

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• Why do I need lib64 on my 32 bit machine?

  - by Tim

  I am trying to install Oracle on my 32-bit machine that runs Ubuntu 10.4. I am following install Oracle on Ubuntu tutorial. At the very first step there is a requirement to manually install library libstdc++5. Author does 2 steps: download libstdc++5_3.3.6-17ubuntu1_amd64.deb from here download ia32-libs_2.7ubuntu6.1_amd64.deb from here As you may have probably noticed these 2 files contain an "_amd64" postfix, which pointed me out that author is using 64-bit amd processor. Each of these files author copied to /usr/lib64 and /usr/lib32 folders correspondingly and simply make soft links libstdc++.so.5 in both folders. Since I am running 32-bit machine I have simply downloaded those 2 files without "_amd64" postfix. Unexpectedly for me I have also found 2 lib folders in my /usr folder: /usr/lib64 and /usr/lib. So here is my problem: I do not understand which files and where do I have to copy: 1) Do I have to make the same steps as the author has done, i.e. download files with "_amd64" postfixes and place them in my /usr/lib64 and /usr/lib folders? 2) Or do I have to use libraries without "_amd64" postfix? And one more question: why do I have /usr/lib64 at all?

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• Where is the Flash in Chrome?

  - by Daniel

  I installed Google Chrome. This is the first thing I did after installing Ubuntu. I went into firefox, and went to chrome.google.com, and hit the button. I don't like package managers, and avoid the command line like the pox. Then, I started using Google Chrome. I went to Kongregate, and clicked on a game. It told me I didn't have flash. A few different websites told me the same. I assumed that they must have been wrong. I hit the link to Adobe, to install Flash, and it reassured me; of course, Google Chrome includes Flash. I checked my version - Chrome 5.0.375.126. Of course, I just downloaded it. I scoured the internet for solutions. None worked. Many seemed to involve re-enabling Flash, or something like that. But insofar as I can tell, there is no Flash anywhere in my Chrome. I feel like I bought a Reese's cup, and found solid chocolate. I checked in the Chrome plugin manager, and everything. A few solutions told me to copy some garbage into my command line and hit enter (as almost all solutions to problems on linux entail). I did it, reluctantly, and it did nothing. I thought Flash was supposed to come with Chrome. But it didn't. Sooooo... What gives? Google Chrome version: Google Chrome 5.0.375.126 (Official Build 53802) WebKit 533.4 V8 2.1.10.15 User Agent Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.126 Safari/533.4 Command Line /opt/google/chrome/google-chrome Operating System: Ubuntu 10.4 64 bit.

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• Installing LBP 2900 printer -> libs folders wrong?

  - by Peter Smit

  I am trying to get my Canon LBP2900 printer to work on Ubuntu 11.10 64 bit. What I have done is try to follow the steps on https://help.ubuntu.com/community/CanonCaptDrv190 So I downloaded the version 2.3 driver and tried to convert the rpm files to debian and installed them sudo alien cndrvcups-capt-2.30-1.x86_64.rpm cndrvcups-common-2.30-1.x86_64.rpm sudo dpkg -i cndrvcups-capt-2.30-1.x86_64.deb cndrvcups-common-2.30-1.x86_64.deb restarted cups and try to install the printer with lpadmin: sudo service cups restart sudo /usr/sbin/lpadmin -p LBP2900 -m /usr/share/cups/model/CNCUPSLBP2900CAPTK.ppd -v ccp://localhost:59787 -E What I noticed however that on the step with lpadmin it goes wrong with the error: lpadmin: Bad device-uri scheme "ccp" After trying to trace what has gone wrong, I think I nailed it to the fact that dpkg installed a file /usr/lib64/cups/backend/ccp instead of /usr/lib/cups/backend/ccp Checking the original rpm with archive manager shows indeed that /usr/lib and /usr/lib64 are used, with the backend/cpp file only installed in lib64. As I understand correctly, Ubuntu 11.10 uses /usr/lib32 and /usr/lib instead so the files are installed in the wrong place. Is there an automated method of converting the rpm/deb files with the wrong lib structure to one with the right lib structure for ubuntu 11.10? Or am I completely on the wrong track for getting my printer installed?

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• Moving to New Machine... also upgrade to 64bit. What steps?

  - by Kendor

  I am about to move to a new Lenovo X201 from current X61. Current setup has separate \home, separate swap file, also separate \Data partition. Am currently running 10.04 32 bit. Am considering running 64 bit on new machine because I will now have 8 GB of RAM. And would like to also move to 10.10. Ideally I would like preserve as much of my current setup as possible... New machine has Win7 on it, but will blow that away, as I've made a clonezilla copy of it, and will use VirtualBox for when I need Windows. Can someone suggest a good step by step for me? I'm networked to a NAS and also have plenty of external USB storage in case I need intermediary steps. So do I set up new machine first with 64bit 10.10, with partition scheme I want? then rsnyc over \home from old machine (over write target home)? Do I need to upgrade the X61 first to 10.10?

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• Enabling GTX 570

  - by Silas

  Hello i just built up my new system: Asus Rock Z77 Extreme 4 Intel i7 3770k 16 Gb Corsair Ram Zotac Nvidia GTX 570 bequiet! 630W Power supply 120 GB SSD So after i installed UBUNTU 12.04 64 bit. It ran smoothly. I downloaded and installed all the recommended updates. After checking the Sytem details the GTX 570 didnt show up as graphics unit. so i figured i needed to download the drivers. So i did but being a complete newbie to linux i didnt succeed in installing them. (I think) Anyway after several tries and errors i shut down the PC and restarted it. Resultung in do Signal to my screen after trying to reboot and all the monitor outs with no result i took out the graphic card and now it boots normally but after booting it says there is a problem with the system the graphics cant be recognized something something. So Question A: What do i do? I Like linux but the arbitrarity of the Errors that occur without any changes to the system scare me. Question B: Is there A beginners guide to Ubuntu where i could start from scratch because i really want this to work? Question C: Now that the System is (suddently) showing these graphic errors So far without visible consequence despite the error message. should i reinstall the GPU and give the driver installation another try or the other way around? Ill be very grateful for any help. Thank you in advance!

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• Can't install on a Thinkpad W700ds

  - by Habstinat

  I want to install Ubuntu on my computer. I don't know much about Linux, but I know my way around a terminal and whatnot. My computer, a ThinkPad W700ds, refuses to read from my CD when booting. The md5sum is correct and the same CD boots fine from another computer. When I try to install from a USB, I can get the main screen, but when I select any of the options from there my screen turns black for more than 3 hours until I have to turn it off. Is there anything I can do about this? I want to have a true partition, don't want a Wubi'd install. It's a 10.10 x64 image, but my computer is 64 bit (running Windows 7 x64 right now) and the exact same CD is bootable on other computers. I've been on #ubuntu IRC for days trying to work this out but nobody knew, so I figured I would get more responses by posting to here. UPDATE: Thanks Jorge Castro. Both the alternate and desktop installers seem to not work at all with the CD. On a USB, the alternate installer lets me start installing, but in the middle of installation I get this message. The people on #ubuntu told me to just exit installation at that point, so I did.

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• 12.04 doesn't boot anymore after a power failure

  - by Felix

  I'm a Windows user and I have no experience with Linux and Ubuntu. I installed Ubuntu 12.04 on my netbook (Asus 1215B) and everything works fine. Yesterday I ran the "update application" and updated over 120 "things" (I have no idea what exactly). After that I was asked to reboot, and I did. Ubuntu starts again and at the load screen with these 5 dots that normally begin to change color, it freezes. After 20 minutes I took out the battery to try another reboot (yes, not the the best idea), and now nothing happens. I boot from the HDD and I get an Error BOOTMGR is missing. I have important data on the hard drive. Is there an option to get this fixed? Or if not, to at least get the data from the hard drive? Ubuntu 12.04 64-bit Edit: it is ONLY Ubuntu on this Netbook, which uses the whole 500gb HDD as 1 Partition. Filesystem is NTFS. Whole Hardware seems okay. The USB drive which i used to instl the Os was formated in fat32

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• What version was installed? x64 or i686? What's the difference exactly?

  - by Seppo

  Okay, so heres my problem. I recently started migrating several services to individual VMs on my box, using VirtualBox 4.1. I created a new VirtualBox VM with guest type "Ubuntu (64 Bit)". I've already done this before and it worked like a charm. I then installed unbutu server (12.04) from the exact same dvd image. All the time I thought that it should have installed x64. I already put a few hours work into the new VM, migrating the webserver and mail system etc. Today I tried installing a x64 piece of software and it suddenly told me that it needed x64 and I had only i686. I checked uname -a and this is what it gave me: Linux hostname 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686 i386 GNU/Linux Any guesses what went wrong? All the time I was thinking I had a x64 system. Any way to move to a "real" x64? I have a second VM on this host which is running x64 just fine .. P.S.: grep --color=always -iw lm /proc/cpuinfo returns lm among the flags.

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• Hard-drive will randomly fail to load GRUB. Booting a live USB/CD fixes the issue temporarily

  - by Usagi

  I am running 12.04 64-bit and am dual booting with Win7, for full disclosure, although I suspect that has nothing to do with my problem. Occasionally the boot-loader(GRUB) will fail to load and I will be presented with a black screen with a single blinking line. There is no apparent pattern although I suspect there is one and it is related to a program I am running. This has happened to me eight out of ten power cycles now and I can fix it consistently, however, I have no idea why it happens. My current fix is to boot a live CD (I've tried both KNOPPIX and Ubuntu with the same result) and that's it. Somehow booting with the live CD is enough to "wake-up" my hard drive. I then reboot and GRUB magically appears again. So what is going on? Is it possible that a program is corrupting my MBR and the live CD is restoring it? How can I narrow down the possibilities? Thanks. Additional: This is still a problem. I'm convinced now that it is not hardware related as I've spent the last month and several boot cycles on Windows without a hiccup. Recently when I started using Ubuntu again the problem started again. I am more interested in figuring out what is going on rather than actually fixing the problem. Are there any tools, logs, etc. I can use to unravel this mystery?

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• Exception Handling Differences Between 32/64 Bit

  - by Alois Kraus

  I do quite a bit of debugging .NET applications but from time to time I see things that are impossible (at a first look). I may ask you dear reader what your mental exception handling model is. Exception handling is easy after all right? Lets suppose the following code:         private void F1(object sender, EventArgs e)         {             try             {                 F2();             }             catch (Exception ex)             {                 throw new Exception("even worse Exception");             }           }           private void F2()         {             try             {                 F3();             }             finally             {                 throw new Exception("other exception");             }         }           private void F3()         {             throw new NotImplementedException();         }   What will the call stack look like when you break into the catch(Exception) clause in Windbg (32 and 64 bit on .NET 3.5 SP1)? The mental model I have is that when an exception is thrown the stack frames are unwound until the catch handler can execute. An exception does propagate the call chain upwards.   So when F3 does throw an exception the control flow will resume at the finally handler in F2 which does throw another exception hiding the original one (that is nasty) and then the new Exception will be catched in F1 where the catch handler is executed. So we should see in the catch handler in F1 as call stack only the F1 stack frame right? Well lets try it out in Windbg. For this I created a simple Windows Forms application with one button which does execute the F1 method in its click handler. When you compile the application for 64 bit and the catch handler is reached you will find with the following commands in Windbg   Load sos extension from the same path where mscorwks was loaded in the current process .loadby sos mscorwks   Beak on clr exceptions sxe clr   Continue execution g   Dump mixed call stack container C++  and .NET Stacks interleaved 0:000> !DumpStack OS Thread Id: 0x1d8 (0) Child-SP         RetAddr          Call Site 00000000002c88c0 000007fefa68f0bd KERNELBASE!RaiseException+0x39 00000000002c8990 000007fefac42ed0 mscorwks!RaiseTheExceptionInternalOnly+0x295 00000000002c8a60 000007ff005dd7f4 mscorwks!JIT_Throw+0x130 00000000002c8c10 000007fefa6942e1 WindowsFormsApplication1!WindowsFormsApplication1.Form1.F1(System.Object, System.EventArgs)+0xb4 00000000002c8c60 000007fefa661012 mscorwks!ExceptionTracker::CallHandler+0x145 00000000002c8d60 000007fefa711a72 mscorwks!ExceptionTracker::CallCatchHandler+0x9e 00000000002c8df0 0000000077b055cd mscorwks!ProcessCLRException+0x25e 00000000002c8e90 0000000077ae55f8 ntdll!RtlpExecuteHandlerForUnwind+0xd 00000000002c8ec0 000007fefa637c1a ntdll!RtlUnwindEx+0x539 00000000002c9560 000007fefa711a21 mscorwks!ClrUnwindEx+0x36 00000000002c9a70 0000000077b0554d mscorwks!ProcessCLRException+0x20d 00000000002c9b10 0000000077ae5d1c ntdll!RtlpExecuteHandlerForException+0xd 00000000002c9b40 0000000077b1fe48 ntdll!RtlDispatchException+0x3cb 00000000002ca220 000007fefdaeaa7d ntdll!KiUserExceptionDispatcher+0x2e 00000000002ca7e0 000007fefa68f0bd KERNELBASE!RaiseException+0x39 00000000002ca8b0 000007fefac42ed0 mscorwks!RaiseTheExceptionInternalOnly+0x295 00000000002ca980 000007ff005dd8df mscorwks!JIT_Throw+0x130 00000000002cab30 000007fefa6942e1 WindowsFormsApplication1!WindowsFormsApplication1.Form1.F2()+0x9f 00000000002cab80 000007fefa71b5b3 mscorwks!ExceptionTracker::CallHandler+0x145 00000000002cac80 000007fefa70dcd0 mscorwks!ExceptionTracker::ProcessManagedCallFrame+0x683 00000000002caed0 000007fefa7119af mscorwks!ExceptionTracker::ProcessOSExceptionNotification+0x430 00000000002cbd90 0000000077b055cd mscorwks!ProcessCLRException+0x19b 00000000002cbe30 0000000077ae55f8 ntdll!RtlpExecuteHandlerForUnwind+0xd 00000000002cbe60 000007fefa637c1a ntdll!RtlUnwindEx+0x539 00000000002cc500 000007fefa711a21 mscorwks!ClrUnwindEx+0x36 00000000002cca10 0000000077b0554d mscorwks!ProcessCLRException+0x20d 00000000002ccab0 0000000077ae5d1c ntdll!RtlpExecuteHandlerForException+0xd 00000000002ccae0 0000000077b1fe48 ntdll!RtlDispatchException+0x3cb 00000000002cd1c0 000007fefdaeaa7d ntdll!KiUserExceptionDispatcher+0x2e 00000000002cd780 000007fefa68f0bd KERNELBASE!RaiseException+0x39 00000000002cd850 000007fefac42ed0 mscorwks!RaiseTheExceptionInternalOnly+0x295 00000000002cd920 000007ff005dd968 mscorwks!JIT_Throw+0x130 00000000002cdad0 000007ff005dd875 WindowsFormsApplication1!WindowsFormsApplication1.Form1.F3()+0x48 00000000002cdb10 000007ff005dd786 WindowsFormsApplication1!WindowsFormsApplication1.Form1.F2()+0x35 00000000002cdb60 000007ff005dbe6a WindowsFormsApplication1!WindowsFormsApplication1.Form1.F1(System.Object, System.EventArgs)+0x46 00000000002cdbc0 000007ff005dd452 System_Windows_Forms!System.Windows.Forms.Control.OnClick(System.EventArgs)+0x5a   Hm okaaay. I see my method F1 two times in this call stack. Looks like we did get some recursion bug. But that can´t be given the obvious code above. Let´s try the same thing in a 32 bit process.  0:000> !DumpStack OS Thread Id: 0x33e4 (0) Current frame: KERNELBASE!RaiseException+0x58 ChildEBP RetAddr  Caller,Callee 0028ed38 767db727 KERNELBASE!RaiseException+0x58, calling ntdll!RtlRaiseException 0028ed4c 68b9008c mscorwks!Binder::RawGetClass+0x20, calling mscorwks!Module::LookupTypeDef 0028ed5c 68b904ff mscorwks!Binder::IsClass+0x23, calling mscorwks!Binder::RawGetClass 0028ed68 68bfb96f mscorwks!Binder::IsException+0x14, calling mscorwks!Binder::IsClass 0028ed78 68bfb996 mscorwks!IsExceptionOfType+0x23, calling mscorwks!Binder::IsException 0028ed80 68bfbb1c mscorwks!RaiseTheExceptionInternalOnly+0x2a8, calling KERNEL32!RaiseExceptionStub 0028eda8 68ba0713 mscorwks!Module::ResolveStringRef+0xe0, calling mscorwks!BaseDomain::GetStringObjRefPtrFromUnicodeString 0028edc8 68b91e8d mscorwks!SetObjectReferenceUnchecked+0x19 0028ede0 68c8e910 mscorwks!JIT_Throw+0xfc, calling mscorwks!RaiseTheExceptionInternalOnly 0028ee44 68c8e734 mscorwks!JIT_StrCns+0x22, calling mscorwks!LazyMachStateCaptureState 0028ee54 68c8e865 mscorwks!JIT_Throw+0x1e, calling mscorwks!LazyMachStateCaptureState 0028eea4 02ffaecd (MethodDesc 0x7af08c +0x7d WindowsFormsApplication1.Form1.F1(System.Object, System.EventArgs)), calling mscorwks!JIT_Throw 0028eeec 02ffaf19 (MethodDesc 0x7af098 +0x29 WindowsFormsApplication1.Form1.F2()), calling 06370634 0028ef58 02ffae37 (MethodDesc 0x7a7bb0 +0x4f System.Windows.Forms.Control.OnClick(System.EventArgs))   That does look more familar. The call stack has been unwound and we do see only some frames into the history where the debugger was smart enough to find out that we have called F2 from F1. The exception handling on 64 bit systems does work quite differently which seems to have the nice property to remember the called methods not only during the first pass of exception filter clauses (during first pass all catch handler are called if they are going to catch the exception which is about to be thrown)  but also when the actual stack unwind has taken place. This makes it possible to follow not only the call stack right at the moment but also to look into the “history” of the catch/finally clauses. In a 64 bit process you only need to look at the ExceptionTracker to find out if a catch or finally handler was called. The two frames ProcessManagedCallFrame/CallHandler does indicate a finally clause whereas CallCatchHandler/CallHandler indicates a catch clause. That was a interesting one. Oh and by the way if you manage to load the Microsoft symbols you can also find out the hidden exception which. When you encounter in the call stack a line 0016eb34 75b79617 KERNELBASE!RaiseException+0x58 ====> Exception Code e0434f4d cxr@16e850 exr@16e838 Then it is a good idea to execute .exr 16e838 !analyze –v to find out more. In the managed world it is even easier since we can dump the objects allocated on the stack which have not yet been garbage collected to look at former method parameters. The command !dso which is the abbreviation for dump stack objects will give you 0:000> !dso OS Thread Id: 0x46c (0) ESP/REG  Object   Name 0016dd4c 020737f0 System.Exception 0016dd98 020737f0 System.Exception 0016dda8 01f5c6cc System.Windows.Forms.Button 0016ddac 01f5d2b8 System.EventHandler 0016ddb0 02071744 System.Windows.Forms.MouseEventArgs 0016ddc0 01f5d2b8 System.EventHandler 0016ddcc 01f5c6cc System.Windows.Forms.Button 0016dddc 020737f0 System.Exception 0016dde4 01f5d2b8 System.EventHandler 0016ddec 02071744 System.Windows.Forms.MouseEventArgs 0016de40 020737f0 System.Exception 0016de80 02071744 System.Windows.Forms.MouseEventArgs 0016de8c 01f5d2b8 System.EventHandler 0016de90 01f5c6cc System.Windows.Forms.Button 0016df10 02073784 System.SByte[] 0016df5c 02073684 System.NotImplementedException 0016e2a0 02073684 System.NotImplementedException 0016e2e8 01ed69f4 System.Resources.ResourceManager From there it is easy to do 0:000> !pe 02073684 Exception object: 02073684 Exception type: System.NotImplementedException Message: Die Methode oder der Vorgang sind nicht implementiert. InnerException: <none> StackTrace (generated):     SP       IP       Function     0016ECB0 006904AD WindowsFormsApplication2!WindowsFormsApplication2.Form1.F3()+0x35     0016ECC0 00690411 WindowsFormsApplication2!WindowsFormsApplication2.Form1.F2()+0x29     0016ECF0 0069038F WindowsFormsApplication2!WindowsFormsApplication2.Form1.F1(System.Object, System.EventArgs)+0x3f StackTraceString: <none> HResult: 80004001 to see the former exception. That´s all for today.

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• USB connection is unstable with Nexus S 2.3.4 on AMD 64 running 64-bit Windows 7, but works with 32-bit Windows Vista

  - by Mike

  The USB connection is unstable with Nexus S (Android 2.3.4) on AMD 64 running 64-bit Windows 7, but it works with 32-bit Windows Vista. Problem Description: On the 64-bit Windows 7 machine my Nexus S appears to connect, but then it disconnects moments later. Neither accessing USB storage or loading an Android application package file (APK) using the Android Debug Bridge (ADB) work. On 32-bit Windows Vista using the same USB cable, USB storage works. I haven't tried the ADB on 32-bit Windows Vista. Reproduction steps for USB storage: (I have provided the reproduction steps for USB storage and not ADB, because if one isn't working, then the other isn't working either and the USB storage reproduction steps are shorter to document.) Connect the USB cable to the Nexus S and my Windows 7 machine. Effect: The "USB Mass Storage, USB Connected" dialog appears with the button "Turn on USB storage." Click "Turn on USB Storage" Effect: The "working circle" appears. A dialog briefly appears saying "USB storage in use," then it either returns me to Step 1 (now that I am running 2.3.4) or is replaced with the Nexus S's application homepage (while I was running 2.3.3). I'm not sure if the version matters, but I mention it for completeness. On the 32-bit Windows Vista machine the connection is stable. I am able to navigate through the Nexus S file system create, read, update, and delete files, etc. I haven't tried connecting with the ADB. Troubleshooting summary: Tried and failed: Uninstalling and reinstalling the Android USB drivers including removing the files. Uninstalling my custom software Pulling the Nexus S's battery Restarting the Nexus S Restarting 64-bit Windows 7 Changing USB ports on the 64-bit Windows 7 box Compared the dates and file size on the DLLs in my google-usb_driver\amd64 directory and the windows\System32 directory. They match. The sizes for the google-usb_driver\i386 directory do not match (expected). Turning off Debugging mode on the Nexus S does not resolve the problem. Searching Google. Tried and succeeded: Connecting to another machine (Windows Vista) using the same USB cable and Nexus S phone. Troubleshooting observations: I notice that uninstalling the device drivers and deleting the files, then reinstalling the drivers, then rebooting 64-bit Windows 7 then unplugging the Nexus S, then plugging it back in occasionally helps for a short amount of time (minutes to hours, not days). When it is working, I can both access the Nexus S's drive and load/test applications using the ADB. I have observed some wonky behavior in the Device Manager that I haven't tracked down. Sometimes the black Nexus S image appears in the list of devices. Sometimes the image displays as a computer with a green ISA card. Sometimes it neither appears on the top level of devices nor under “other devices,” but it does appear under "disk drives" as "Android UMS Composite USB Device." System configuration: The Nexus S is running Android OS 2.3.4's "Settings\about phone\System updates" indicates that it is up to date as of May 21st 2011. Both 32-bit Windows Vista and 64-bit Windows 7 are up to date. The Windows Vista system is running on an Intel 32-bit processor. Windows 7 is running on an AMD 64-bit processor. I have done Android development on both systems, but I usually develop on the 64-bit Windows 7 machine.

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• Eclipse Crashes on Ubuntu 11.10

  - by Adrian Matteo

  I'm using Eclipse Indigo with aptana, to develope a rails application and it was working fine, but now it keeps crashing on startup. It opens and when the loading bars appear on the status bar, it goes gray (not responding) and the in closes without an error. Here is the output from the terminal when I ran it from there: (Eclipse:7391): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", (Eclipse:7391): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", (Eclipse:7391): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", (Eclipse:7391): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", 2012-05-27 16:05:58.272::INFO: Logging to STDERR via org.mortbay.log.StdErrLog 2012-05-27 16:06:00.586::INFO: jetty-6.1.11 2012-05-27 16:06:00.743::INFO: Started [email protected]:8500 2012-05-27 16:06:00.744::INFO: Started [email protected]:8600 2012-05-27 16:06:01.999::INFO: jetty-6.1.11 2012-05-27 16:06:01.029::INFO: Opened /tmp/jetty_preview_server.log 2012-05-27 16:06:01.046::INFO: Started [email protected]:8000 2012-05-27 16:06:01.071::INFO: jetty-6.1.11 2012-05-27 16:06:01.016::INFO: Started [email protected]:8300 ** (Eclipse:7391): DEBUG: NP_Initialize ** (Eclipse:7391): DEBUG: NP_Initialize succeeded No bp log location saved, using default. [000:000] Browser XEmbed support present: 1 [000:000] Browser toolkit is Gtk2. [000:001] Using Gtk2 toolkit ERROR: Invalid browser function table. Some functionality may be restricted. [000:056] Warning(optionsfile.cc:47): Load: Could not open file, err=2 [000:056] No bp log location saved, using default. [000:056] Browser XEmbed support present: 1 [000:056] Browser toolkit is Gtk2. [000:056] Using Gtk2 toolkit ** (Eclipse:7391): DEBUG: NP_Initialize ** (Eclipse:7391): DEBUG: NP_Initialize succeeded ** (Eclipse:7391): DEBUG: NP_Initialize ** (Eclipse:7391): DEBUG: NP_Initialize succeeded ** (Eclipse:7391): DEBUG: NP_Initialize ** (Eclipse:7391): DEBUG: NP_Initialize succeeded java version "1.6.0_23" OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre11-0ubuntu1.11.10.2) OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode) java.io.FileNotFoundException: /home/amatteo/.eclipse/org.eclipse.platform_3.7.0_155965261/configuration/portal.1.2.7.024747/aptana/favicon.ico (No such file or directory) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:120) at com.aptana.ide.server.jetty.ResourceBaseServlet.doGet(ResourceBaseServlet.java:136) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) 2012-05-27 16:06:03.277::WARN: /favicon.ico: java.io.IOException: /home/amatteo/.eclipse/org.eclipse.platform_3.7.0_155965261/configuration/portal.1.2.7.024747/aptana/favicon.ico (No such file or directory) It was working perfectly till a few days ago!

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• How do I install a 32-bit Java runtime on an amd64 server with multiarch?

  - by kbyrd

  I'm a long time Ubuntu user, but I haven't been following the community for the last several versions. I just did fresh default minimal amd64 install of Oneiric and I need a 32-bit JRE for a particular application. I last did this on 10.10, so I am not familiar with the multiarch stuff. Instead of installing ia32-libs, I read a bit and tried: aptitude install default-jre-headless:i386 But that just got me: The following NEW packages will be installed: default-jre-headless{b} openjdk-6-jre-headless{ab} The following packages are RECOMMENDED but will NOT be installed: icedtea-6-jre-cacao icedtea-6-jre-jamvm 0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 27.3 MB of archives. After unpacking 82.1 MB will be used. The following packages have unmet dependencies: default-jre-headless: Depends: java-common which is a virtual package. openjdk-6-jre-headless: Depends: openjdk-6-jre-lib (>= 6b23~pre10-0ubuntu5) which is a virtual package. Depends: ca-certificates-java which is a virtual package. Depends: tzdata-java which is a virtual package. Depends: java-common (>= 0.28) which is a virtual package. Depends: libcups2 but it is not going to be installed. Depends: liblcms1 but it is not going to be installed. Depends: libjpeg62 but it is not going to be installed. Depends: libnss3-1d (>= 3.12.9+ckbi-1.82-0ubuntu4) but it is not going to be installed. Depends: libc6 (>= 2.11) but it is not going to be installed. Depends: libfreetype6 (>= 2.2.1) but it is not going to be installed. Depends: libgcc1 (>= 1:4.1.1) but it is not going to be installed. Depends: libstdc++6 (>= 4.1.1) but it is not going to be installed. Depends: zlib1g (>= 1:1.1.4) but it is not going to be installed. The following actions will resolve these dependencies: Keep the following packages at their current version: 1) default-jre-headless [Not Installed] 2) openjdk-6-jre-headless [Not Installed] Accept this solution? [Y/n/q/?] q Is aptitude not installing the 32-bit versions of the dependencies? What is the right way to do this? I'll likely want both a 64-bit and a 32-bit JRE if that matters.

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• SAPPHIRE HD 7770 no audio on HDMI TV display

  - by zeroconf

  I have SAPPHIRE HD 7770 and cannot get work audio over HDMI. http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1159&lid=1&pid=1452&leg=0 I use Ubuntu 12.04 LTS 64-bit version with all current updates. I tried at /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1" ... it didn't help. It's probably I use proprietary driver -this seems to be open source driver. I use the driver, what jockey-gtk (additional drivers) offered me: ATI/AMD PROPRIETARY FGLRX GRAPHICS DRIVER <---- I installed that one ATI/AMD PROPRIETARY FGLRX GRAPHICS DRIVER (post-release update) So - I installed the first one, because installing second version failed. Everything went fine but no sound at TV display by HDMI. Even Gnome sound mixer doesn't show HDMI choice. Using 32" Samsung B530 LCD TV - http://www.lcdbesttv.com/2010/02/samsung-b530-series-lcd-tv/ I have Asus P8Z77-M motherboard - http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z77M/ - there is also HDMI integrated. When I put HDMI cord to that plug, then even Gnome sound mixer showed HDMI audio but it didn't work. I have set from BIOS, that I use that SAPPHIRE HD 7770 from PCIe. My lspci output: 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) 00:02.0 Display controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.5 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 6 (rev c4) 00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4) 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device 683d 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 09) 04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)

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