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• Upgrade from 10.04 to 11.04, must maintain minimum kernel 2.6.38

  - by Steve

  I have a machine running 10.04 and am using BTRFS with lzo compression. I upgraded the kernel to 2.6.38 to enable this (using a PPA). I have my /home folder on a separate (4 TB) BTRFS drive. / is on ext4. My only complaint with this setup is that it uses the old BTRFS tools. How can I upgrade first to 10.10, then 11.04 as required, when 10.10 uses 2.6.35? I don't want it to crash/choke on mounting /home. Will it just let me keep booting the newer kernel I have while upgrading?

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• Ubuntu 12.04 Running Faster Than Normal

  - by One Zero

  I have just installed a new copy of Ubuntu 12.04 on my laptop . i have noticed that my system is running 4x to 5x faster than normal . i have just install Vmware Desktop & centos for testing something . i have noticed that i has installed in just like less than 1 minute !! My system is booting so fast that after starting my laptop i got GUI in like 10 to 13 sec & shutting down in like 2 to 3 sec & all programs ( Firefox , Chrome , etc ) running so fast that i can see .... The only change i made after installation is cat /proc/sys/vm/swappiness 1 How do I configure swappiness? The System is Dell N 5110 i7 with 8GB of RAM So my question is that what should i look for that why my system running very fast ?

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• SDL blitting multiple surfaces at once

  - by extropic_engine

  I'm trying to write a platforming game where the sprites for the level backgrounds are broken up into 512x512 chunks. I keep 3 chunks in memory at a time and I'm trying to write code to blit all three to the screen. Here is the current code I have: SDL_Rect where; where.y = -game->camera->y; where.x = -game->camera->x - MAP_WIDTH; SDL_BlitSurface(left_chunk, NULL, screen, &where); where.x = -game->camera->x; SDL_BlitSurface(center_chunk, NULL, screen, &where); where.x = -game->camera->x + MAP_WIDTH; SDL_BlitSurface(right_chunk, NULL, screen, &where); The issue I'm running into is that whichever chunk gets blitted first is the only one that shows up. The rest fail to appear onscreen. I think the issue might have something to do with alpha transparency, but even if the chunks don't overlap at all they still fail to blit. In other parts of the code I'm blitting multiple things to the screen at once, such as characters and backgrounds, and they all show up correctly. This particular segment of code is the only area I'm encountering this problem. If I comment out the line that blits left_chunk, it changes to this:

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• Apache not responding in amazon ec2

  - by Viren

  Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find the incoming packet to port 80 in tcpdump output As per the security rules all security rules are in place correctly at least in amazon console I restarted the apache to listen to port 8080 and added port 8080 and add 8080 to security rule and everything work but I cant just able to understand as to why the port 80 not responding Needless to say since port 8080 is responding all my CNAME and A-record is working too UPDATE No firewall issue either I just cross check the iptables and list is empty Can some share a light on this

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• Google document does not print correctly on Mac 10.7.5 using Chrome

  - by Android Addict

  When attempting to print a Google document, the header does not get printed at all and the text starts almost in the center of the page - cutting off almost half of the text in the printable area horizontally. The vertical alignment appears fine, with the exception of hte missing header. I have searched the product forums at Google, but they are virtually unusable. Endless threads without a solution! For reference, the document prints fine from Windows XP using Chrome. I can also print from other applications on the Mac without issue - so I am thinking it's a Google doc issue at this point.

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• (SYSLINUX QUESTION) How to launch command prompt once syslinux boots up

  - by user1294023

  I have created a bootable USB drive using SYSLINUX I am booting my x86 system correctly. Once system boots I want to stop at console (command prompt) where I can type linux commands (cd etc) and run my executable file manually. Does that mean I have to have busy box installed (for basic commands). What makes system stop at command prompt? I do have /dev/console. My serial console is tty1. Any help is appreciated. #syslinux.cfg serial 0 9600 default MyProgram prompt 1 label Linux display message.msg timeout 100 kernel bzImage append console=tty1,9600 vga=773 initrd initrd.img

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• Windows Media Player 11 fails to authenticate with proxy (ISA)

  - by Ed Manet

  We have some users who need to use a 3rd party site that embeds Windows Media Player streaming video into a web page. Our users go through an ISA proxy server to connect to the Internet. The browser has no problems accessing the site through the proxy. When Media Player loads, we get prompted for network credentials, but the authentication fails. If we set up Internet Explorer 8 to not use the proxy, Media Player has no problem. Media Player is configured to use the RTSP/TCP and HTTP protocols, but not the RTSP/UDP protocol. Is this necessary? Is there a registry key I can use to enable it? Is this more of a proxy server issue? The proxy guy says it's a desktop issue.

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• Pressing zero key brings up lock/switch user screen in W7

  - by qinghua

  This issue started after my cat walked all over the keyboard... Whenever I press the "zero" key, the screen goes black and I'm taken to the lock/switch user screen. The other functions of the key work fine - it can produce ) and / like usual. Numlock is off, and as far as I know, my computer doesn't have Function Lock. If I log out of my user account and sign in as a guest, the "zero" works again, but if I create a new user profile, it doesn't work. I get the same issue when I hit "zero" using the on-screen keyboard. My keyboard layout is set to US English. I've uninstalled and reinstalled the ATK package, and updated my keyboard drivers. I have an ASUS U43JC-X1 laptop running Windows 7, and I haven't installed any new programs lately.

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• low volume/dual boot

  - by user2367

  I have an intel Imac dual-booting Ubuntu 10.04 and OSX 10.6. Both work fine, but sound is very quiet in Linux, even though the gnome volume control panel and pulse audio volume control panels are both set to 100%. I can turn the speaker volume up and it's fine, but then when I boot back to OSX the volume makes me jump out of my skin. Is there a setting I'm missing? If I turn the gnome sound pref volume higher then 100, it tends to distort the sound. (crackling)

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• psql editor setting on Ubuntu

  - by dezso

  The situation is the following. This is an Ubuntu box: Linux ns3mx3 2.6.32-41-server #89-Ubuntu SMP Fri Apr 27 22:33:31 UTC 2012 x86_64 GNU/Linux Which means that when I first issue \e in psql, I'm asked to choose an editor. Then there is the .selected_editor file, which contains # Generated by /usr/bin/select-editor SELECTED_EDITOR="/usr/bin/mcedit-debian" So far this is OK (it's my problem that I consider this completely useless, but never mind). Then I set up a .psqlrc file: \set PSQL_EDITOR /usr/bin/vim \set EDITOR /usr/bin/vim \set VISUAL /usr/bin/vim As you can see, I wanted to be sure not to miss a candidate variable for editor setting. The file is used as expected: test=# \echo :EDITOR /usr/bin/vim But when I issue the \e command, none of these is used - I fall back to SELECTED_EDITOR. The situation remains just the same if I append an \unset SELECTED_EDITOR to the .psqlrc file. Now how can I make .psqlrc setting win over the default editor? (PostgreSQL version id 9.1.4)

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• DNSCache excesive memory usage Windows Server 2008 R2

  - by MikeT

  We are having an issue with the dnscache service where its memory usage is becoming excessive (~6GB) after a week or two. Restarting the service frees this memory but performing ipconfig /flushdns does not, an ipconfig /displaydns shows aprox 15-20 entries in the cache. We have checked and there appears to be aprox 150 DNS queries per second taking place but I would not expect this to have the effect of causing this memory issue. I have tried to search MSDN for hotfixes or bug reports but I could only find a reference to a memory leak in windows 2003. can anyone suggest how to proceed.

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• In setting up dual Boot with Windows XP and Ubuntu, which OS do I install first?

  - by markl

  I'd like to install both Ubuntu 12.04 and Windows XP on a Dell laptop, and I was thinking about using a dual boot structure, and using the bulk of my hard drive as empty hard drive space to share files between the two operating systems (so choice of file system type is very important in this set-up). The kind of partitioning structure I would like to use is Partition 1 - Ubuntu 12.04 (root) (20GB) Partition 2 - Ubuntu /home (20GB) Partition 3 : Free Space (560GB) Partition 4 : Windows XP (35GB) Partition 5 : SWAP (3GB) (Total Hardrive Capacity is ~640GB) My question is; what is the best way to go about setting up this kind this system? Should I install Windows XP first and setup the partitions, and then install Ubuntu which I believe will install the GRUB bootloader for OS booting choice or Do I install Ubuntu first, setting up the available partitions and then perform a WIndows install? Please let me know if there is anything in this setup that I have left out and should know about, including things related to setting particular partitions as logical or primary, and whether the boot partition and the filesystem partition should actually be two separate partitions.

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• Apache 406 error with JPEGCam

  - by BenM

  We have recently migrated our website to a new server, and JPEGCam is now reporting a 406 (Not Acceptable) error when trying to upload the image from the SWF to the server. I know that it isn't supported any more by the developer, but I wondered if anyone has encountered this problem before. I suspected the issue was with the Mod_Security module in Apache (i.e. not whitelisting Shockwave Flash), but the server admins have also drawn a blank. The request is being sent as a POST method, and returns a 406 error, but according to the Apache logs, it is returning a 404 error. I wondered if anyone has encountered this problem before, or knows of a 'simple' fix. Everything was working on our Xampp flavour dev server, so I am 100% certain this is an Apache issue. Also, when trying to access the requested page directly in the web browser, everything gets served up without a problem...

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• The letter 'W' gets rendered oddly

  - by Jeff E

  It seems that with this particular font (it's one of the Ubuntu fonts; I can't tell which one exactly because Chrome's debugger doesn't tell me which font-family won the CSS battle) the letter 'W' (both cases), at the default zoom level and typically with smaller sizes, will render very oddly: (open the image in a new tab) The right-hand side of the letter is totally wrong. Changing the zoom levels will mitigate (but not eliminate) the issue. Does anyone know how to fix this? It doesn't happen on Firefox or IE so I assume it's not an issue with the font itself.

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• Computer restarts infinitely after Bios/Motherboard screen

  - by user13176

  Like every morning I turn on my computer (which is kinda new and only couple months old) and I never had any issue with it until now. It starts booting, shows that very first screen which has some motherboard picture and stuff and then it show which buttons to press to enter BIOS and etc. Then it suddenly restarted and after that just kept restarting every 3-5 seconds forever. What could that be? I unplugged power cable, checked all the cables, moved a case, it had some wires stuck under it, blew some dust (but didn't open the case yet) and I tried to boot again and it booted successfully and I am writing this issue now. My specs: i3-3220 3.30Ghz 8GB DDR3 RAM 1TB HDD GeForce GTX 650 Windows 8 x64 I also recently upgraded my security software (that's the most recent thing I did) and it includes ZoneAlarm firewall, Comodo Antivirus and Spybot Search & Destroy. But maybe it doesn't have anything to do with this. Cheers

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• How do I get my Mac to boot from an Ubuntu USB key?

  - by user11621

  If you select "USB" and "Mac" on this download page, it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from. I've followed them to the letter two or three times on different USB keys, and it doesn't work. There's a very great deal of technical discussion about EFI etc. but this set of instructions seems to suggest it should just work, but it doesn't. Help? I'm increasingly unhappy with the more locked-down approach Apple is taking, and I'd quite like to start using Linux with a view to transitioning over to using it as my main operating system, but booting from the CD takes forever, runs slowly and I'm really hoping to get it moving off USB. Can anybody help me?

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• How can I make my Java desktop application to run on different computers in a network locally and updating same mysql database?

  - by JaMpa

  I have developed Java desktop application for registration of students in the computer laboratories in our college, but what I need is to make this application whenever it runs on any computer (Windows XP machines) on the laboratory each and every data filled by the college students goes to the same MySql database (through WAMP server) running on the server machine (Win Server 2003). Also, I need this application to run during booting of windows computers in the laboratory for the purpose when any student tries to switch on any PC in the comp lab before interfacing the desktop icons should sign in through user name and password when he has already registered or signing up in order for getting the access.

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• Asus 101mt Resolution change

  - by jayb151

  I've been looking for a fix, but no luck. my Asus 101mt has a maximum resolution of 1024x768, but I cannot select this in "Displays" since it is not an option. I have added this resolution before, but now I can't seem to find the same information. I just did a clean install with 12.04. I am also dual booting with Win 7. I am really a newb when it comes to Linux. I'm only now starting to see the light! Any help would be appreciated!

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• ATI HD 5970 display

  - by user55406

  Hello everyone i'm a little worry about my graphic card. before I get into that I will tell you my system specs. I have intel dx58so mainboard, 6gb corsair xms ddr3 ram, intel i7 960 cpu, and ati hd 5970. I'm also using a coolmaster haf92 case. My OS is vista X64. Here is my issue when I type in dxdiag in (Start Search) and I look into display. I see in (approx total memory) 716mb graphic memory. The ati hd 5970 is a 2gb graphic card. Am I being stuipd or is there an issue.

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• Cannot access https sites through any browser on Win XP?

  - by mooep

  This isnt a firewall issue, I can telnet to gmail with no problems, but all browsers (chrome, IE, firefox) return a This web page is not available. error when tring to access it through the browser. I can access the same pages, using the same browsers, on the same machine, but through a different user account with no problem. What the hell is going on? Help appreciated. Edit: This is definitely a windows setup issue - I have just created a new admin account and can access https with problems. This is seriously infuriating.

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• Clean install of 12.04 won't boot from HDD

  - by MarchingKazoo

  Downloaded 12.04.2. Made CD. Machine boots from CD as expected. Installed onto HD. Upon reboot, "Read error" message appears. Upon booting from CD, the HD appears as expected: One partition for Ubuntu, taking up about 12 gig, the rest empty. Lather, rinse, repeat five times. Results of "sudo fdisk -l": Disk /dev/sda: 200.0 GB, 200049647616 bytes 255 heads, 63 sectors/track, 24321 cylinders, total 390721968 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000dfa3e Device Boot Start End Blocks Id System /dev/sda1 * 2048 386596863 193297408 83 Linux /dev/sda2 386598910 390721535 2061313 5 Extended /dev/sda5 386598912 390721535 2061312 82 Linux swap / Solaris Should this be complicate? Seems no.

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• Sprite batching seems slow

  - by Dekowta

  I have implemented a sprite batching system in OpenGL which will batch sprites based on their texture. How ever when I'm rendering ~5000 sprites all using the same texture i'm getting roughly 30fps. The process is as followed create sprite batch which also create a VBO with a set size and also creates the shaders as well call begin and initialise the render mode (at the moment just setting alpha on) call Draw with a sprite. This checks to see if the texture of the sprite has already been loaded and if so it just creates a pointer to the batch item and adds the new sprite coords. If not then it creates a new batch item and adds the sprite coords to that; it adds the batch item to the main batch. if the max sprite count is reached render will be called call end which calls render to render the left over sprites in the batch. and also resets the buffer offset render loops through each item in the batch and will bind the texture of the batch item, map the data to the buffer and then draw the array. the buffer will then be offset by the amount of sprites drawn. I have a feeling that it could be the method i'm using to store the batched sprites or it could be something else that i'm missing but I still can work it out. the cpp and h files are as followed http://pastebin.com/ZAytErGB http://pastebin.com/iCB608tA On top of this i'm also getting a weird issue where then two sprites are batched on after the other the second sprite will use the same coordinates as the last. And then when one if drawn after it is fine. I can't seem to find what is causing this issue. any help would be appreciated iv been sat trying to work this all out for a while now and cant seems to put my finger on what's causing it all.

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• How to disable multiple form submit (POST) in IIS

  - by user1209640

  We had a major SharePoint outage a few months back because a user wedged their keyboard in such a way as to cause the Enter button to be pressed indefinitely. The user was on a customized people search page and hundreds of POSTs by the same user were submitted asynchronously, which overloaded the server. Because I work in a large organization, I am looking for a more global way to prevent this from happening. Is there a way to prevent multiple web form submissions by a common user within a short period of time within IIS? I am aware we can write javascript to disable the button after it is clicked, but we are hoping to prevent this issue from occurring on other pages where a similar possibility may exist. Update: It appears looking at the source code, the javascript is performing a document.location = url, whenever keycode 13 (Enter) is pressed. Again, we can write JS to prevent this in this location, but we also want to be able to guard against this kind of issue more generally... preferably at the IIS level.

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• boot problem with ubuntu and windows 8

  - by hunch

  i have a hp dv6 system. on which i was having the windows 8 installed. as i was interested in downloading the ubuntu 12.10 along with windows 8(not inside) .i have made separate partition in ubuntu 12.10 but some how it backfires and now i am not able to boot windows 8 and ubuntu. with windows 8 there is no drive to access the drive partition that has OS. with ubuntu i am getting blank screen. i am thinking that i have problem in system partition but i am not able to solve it. Plz help me. i am in a venerable condition... i have tried booting the window with the help of installation cd but iam not succesful in any of the method - 1-reset PC 2-RECOVERY 3- from command prompt i tried to check disks but it is not showing anything

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• Zend Framework 2 loading slow and loss of connection using WAMP

  - by Charlie

  I've been facing an issue with Zend framework running on my local Wamp 2.2 server. I am not sure what I'm doing wrong but ZF2 seems to load really slow when making an http request. Any other request to a php or html file seems to run smoothly. Also, sometimes when the loading time takes longer, I get this message: "The connection to [virtualhostname] was interrupted" I then need to hit refresh to complete the request. I checked apache error log and everything looks fine. Please, I appreciate any type of guide/suggestion to take care of this issue. I followed the starter guide word by word.

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