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• Graphics corrupt after upgrade from 11.10 to 12.04

  - by RiaanZA

  I'm stuck at the moment with an ubuntu that boots into an unusable white screen after upgrading from 11.10 to 12.04. I've tried booting into safe X mode but it just throws me back to the safe menu every time. Restore previous graphics driver, use default graphics configuration and set up new graphics configuration all don't work either. I've tried various methods of resetting the graphics from the command line, but none are working due to unmet dependencies. These cannot be fixed by doing the normal "apt-get -f install" because its saying there is a dpkg error in var/lib/dpkg/status (blank line relating to skype-wrapper). I haven't been able to find any other way to fix the dependencies yet. Can someone please give me some advice on what to do, I really don't want to go the re install route.

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• $ON_USER returning root instead of $USER

  - by Nathanel Titane

  Hello everybody! With Natty coming out soon, I've been at work updating my deployment and self-config script to make my desktop on 11.04 run and look the way I want it to. One bummer is that dbus seems to have changed and does not permit, in the same manner Lucid and Maverick did, the authentication of the current user by terminal call using grep and cat. Ideally, to run the script, I would sudo -s and then launch it as # chmod +x install && ./install Instead of returning my user name.. it now returns root and applies changes to the root profile and aborts whenever paths do not correspond. Here is my script header: #!/bin/bash ON_USER=$(echo ~ | awk -F'/' '{ print $1 $2 $3 }' | sed 's/home//g') export $(grep -v "^#" ~/.dbus/session-bus/`cat /var/lib/dbus/machine-id`-0) if sudo -u $ON_USER test -z "$DBUS_SESSION_BUS_ADDRESS" ; then eval `sudo -u $ON_USER dbus-launch --sh-syntax --exit-with-session` fi RELEASE=$(lsb_release -cs) How could I make it return the actual user now that natty is coming? Thanks for the help

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• Is avoiding the private access specifier in PHP justified?

  - by Tifa

  I come from a Java background and I have been working with PHP for almost a year now. I have worked with WordPress, Zend and currently I'm using CakePHP. I was going through Cake's lib and I couldn't help notice that Cake goes a long way avoiding the "private" access specifier. Cake says Try to avoid private methods or variables, though, in favor of protected ones. The latter can be accessed or modified by subclasses, whereas private ones prevent extension or re-use. in this tutorial. Why does Cake overly shun the "private" access specifier while good OO design encourages its use i.e to apply the most restrictive visibility for a class member that is not intended to be part of its exported API? I'm willing to believe that "private" functions are difficult test, but is rest of the convention justified outside Cake? or perhaps it's just a Cake convention of OO design geared towards extensibility at the expense of being a stickler for stringent (or traditional?) OO design?

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• Dependency problem while missing package is already installed

  - by hakermania

  I am trying to install a program but I am getting a dependency error. The error clearly points out: Dependency is not satisfiable: libc6-amd64 (>= 2.14) I went on to investigate and I found out that I have 2.19 version installed, actually: alex@MaD-pc:~$ apt-cache policy libc6-amd64 libc6-amd64:i386: Installed: 2.19-0ubuntu6 Candidate: 2.19-0ubuntu6 Version table: *** 2.19-0ubuntu6 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages 100 /var/lib/dpkg/status Why am I getting this error if I already have this package? I also should probably mention that the system is 100% up to date. I run the updates and upgrades, restarted the system and then tried to install the package again with the same error popping up. Edit 1: I am using amd64 but I have installed some 32-bit libraries required by some program installed via wine if I recall correctly.

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• Why ~/.bash_profile is not getting sourced when opening a terminal in Ubuntu 11.04?

  - by Viriato

  Problem I have an Ubuntu 11.04 Virtual Machine and I wanted to set up my Java development environment. I did as follows sudo apt-get install openjdk-6-jdk Added the following entries to ~/.bash_profile export JAVA_HOME=/usr/lib/jvm/java-6-openjdk export PATH=$PATH:$JAVA_HOME/bin Save the changes and exit Open up a terminal again and typed the following echo $JAVA_HOME (blank) echo $PATH (displayed, but not the JAVA_HOME value) Nothing happened, like if the export of JAVA_HOME and it's addition to the PATH were never done. Solution I had to go to ~/.bashrc and add the following entry towards the end of file #Source bash_profile to set JAVA_HOME and add it to the PATH because for some reason is not being picked up . ~/.bash_profile Questions Why did I have to do that? I thought bash_profile, bash_login or profile in absence of those two get executed first before bashrc. Was in this case my terminal a non-login shell? If so, why when doing su after the terminal and putting the password it did not execute profile where I had also set the exports mentioned above?

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• "Failed to fetch" while updating

  - by Farouk BA

  I'm trying to update from ubuntu 12.10 lately but I keep getting the "Failed to fetch" error. W: Failed to fetch ht tp://security.ubuntu.com/ubuntu/dists/quantal-security/Release Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file) W: Failed to fetch ht tp://archive.ubuntu.com/ubuntu/dists/quantal/Release Unable to find expected entry 'independent/source/Sources' in Release file (Wrong sources.list entry or malformed file) W: Failed to fetch ht tp://archive.ubuntu.com/ubuntu/dists/quantal-updates/Release Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file) W: Failed to fetch ht tp://archive.ubuntu.com/ubuntu/dists/quantal-backports/Release Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file) E: Some index files failed to download. They have been ignored, or old ones used instead. I changed the server and deleted the source lists from /var/lib/apt/lists/ like some answers say but still. This is really annoiying.

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• After 10.10 -> 11.04 upgrade, can only login via Classic (No Effects)

  - by Ryan P.

  Yesterday I upgraded from 10.10 to 11.04, everything seemed to go okay until immediately after login: the desktop goes into a "corrupted" looking state (similar to having too high resolution set). I can see some kind of movement by moving the mouse around/right clicking, and can enter text terminals via ctrl + alt + f1 It does this in both plain "Ubuntu" and "Ubuntu Classic", and only seems to login/startup properly with Ubuntu Classic (No Effects). I have checked my video card (Radeon X600) and run the unity support test which passes with all "yes" results (Unity supported: yes): /usr/lib/nux/unity_support_test -p I have tried re-installing my Ubuntu desktop: rm -rf .gnome .gnome2 .gconf .gconfd .metacity sudo apt-get remove ubuntu-desktop sudo apt-get install ubuntu-desktop With no success. I can workaround for now with Classic (No Effects), but I'd really like to find the root problem. Any suggestions on what else to try would be appreciated!

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• Alps touchpad detected as a mouse, can't enable/disable multitouch

  - by Shota Bakuradze

  Now I know that this has been asked several times here but I couldn't find any decent solution to it. I am running Ubuntu 12.04 on my DELL N5110 and my touchpad is detected as a mouse, So I don't have the touchpad options availiable. Can't use multitouch and can't disable it either. I have tried the dkms driver from this link. But when I tried to install it with dpkg -i command, dpkg returns the following error: ERROR (dkms apport): unable to determine source package for psmouse-alps-dkms Error! Bad return status for module build on kernel: 3.2.0-25-generic-pae (i686) Consult /var/lib/dkms/psmouse-alps/0.10/build/make.log for more information. I have installed all the updates as well. Can someone help me out with this issue?

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• What kind of authorization I should use for my facebook application

  - by JSmith

  I am building a social reader Facebook application using Django where I am using Google Data API (Blogger API). But I am unable to deal with the authorization step to use the API (currently using ClientLogin under development). I tried to read the OAuth documentation but couldn't figure out how to proceed. I don't want my users to provide any login credentials for google.. which makes the app completely absurd. So, can anyone help me on my project and tell me what kind of authorization I should actually use and how ? (I am using gdata lib)

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• Distributing a very simple application

  - by vanna

  I have a very simple working console application written in C++ linked with a light static library. It is just for testing purposes. Now that the coding part is done, I would like to know the process of actually distributing the program. I wrote a very basic CMakeLists.txt that create makefiles or VS projects to build the sources. I also have a program that calls the static library in order to make some google tests. To me, the distribution of this application goes like this : to developpers : the src directory with the CMakeLists.txt file (multi-platform distribution) with a README.txt and an INSTALL.txt to users : the executable and a README.txt on my git repo : everything mentionned above plus the sources for testing and the gtest external lib A this point : considering the complexity of my application, am I doing it right ? Is there any reference that would formalize this distribution process so I can get better and go further ? Say I would like to add dynamic libraries that can be updated, external libraries like boost : how should I package this to distribute it in a professionnal way ?

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• What is the package name for JVM?

  - by JohnMerlino

  If I want to know if skype is installed, I would type this: viggy@ubuntu:~$ apt-cache policy skype skype:i386: Installed: 4.0.0.8-1 Candidate: 4.0.0.8-1 Version table: *** 4.0.0.8-1 0 100 /var/lib/dpkg/status Or if Eclipse is installed: viggy@ubuntu:~$ apt-cache policy eclipse eclipse: Installed: (none) Candidate: 3.7.2-1 Version table: 3.7.2-1 0 But let's say I want to know if the Java Virtual Machine is installed. How would I know what to pass to apt-cache policy? For example, you might not know what to pass to apt-cache policy for some programs: viggy@ubuntu:~$ apt-cache policy java N: Unable to locate package java viggy@ubuntu:~$ apt-cache policy JVM N: Unable to locate package JVM

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• Can't install ATI proprietary drivers in 12.10

  - by EApubs

  I have a laptop with ATI Radeon 6770M HD Hybrid graphics card. In Ubuntu 12.04, I installed the fglrx driver through "additional drivers" and it worked. (I can even switch GPUs). But in the new Ubuntu 12.10, after installing, Unity won't load. Only the mouse and the wallpaper. If I initialize the settings sudo aticonfig --initial then after rebooting it gives a warning saying I'm in low graphics mode! How to fix this? PS : Earlier i used software source to install the drivers. But when using the terminal, I got this warning : update-alternatives: warning: forcing reinstallation of alternative /usr/lib/fglrx/ld.so.conf because link group x86_64-linux-gnu_gl_conf is broken Update : Filed a bug report in launchpad : https://bugs.launchpad.net/fglrx/+bug/1068661

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• Saving a movie generated with Jython/JES on local disk

  - by Golgauth

  I made an autogenerated movie clip using JES (Jython Environment for Students). I can play it without any problem using playMovie(), but I can't figure out how to have it saved physically on disk. The full script is located here. ... movie = synthesizeFrameAndCreateMovie("D:\\FOLDER") print movie writeQuicktime(movie,"D:\\FOLDER\\movie.mov", 30) [LINE 35] #playMovie(movie) I get this error when calling the function writeQuicktime(): >>> ======= Loading Progam ======= Movie, frames: 60 The error was: Index: 0, Size: 0 I wasn't able to do what you wanted. The error java.lang.IndexOutOfBoundsException has occured Please check line 35 Note : I also tried the function writeAVI(), with the exact same result. This error sounds like a java bug in Jython/JES library. I am running JES under Windows 7 and have all the common Quicktime and AVI codex installed as well as the QTjava library in my jre... Any brilliant idea ? EDIT : Also tried the Linux version with same result for both QuickTime and AVI...

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• Scala Eclipse IDE suddenly ignoring breakpoints

  - by malsmith

  I've been using Scala 2.8RC1 and Scala Eclipse plugin for 2.8 RC1 happily for a few days. However, last night after adding a couple jar files to my environment (apache http client jars) the debugger just stopped stopping at breakpoints in scala code. Java code stops fine at breakpoints. I tried creating a new mimimal scala app breakpoints don't stop. I've tried switching to sun-jre-1.6.0.20 from the openjdk-1.6.18 I had been using. I've switched to the scala 2.8 nightly and also eclipse plugin for scala nightly builds. No luck. I would greatly appreciate ideas for fixes. Rather frustrating as the initial experience with 2.8 was really great.

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• How would I use JBox2d in Java?

  - by BluFire

  So I did some research and a found Box2d. I then proceeded to download it and the testbed. Now that i have it, I don't know how to properly use it. I'm looking for a clear simple answer on how to use the engine. The things I did was that I put it into a lib folder and referenced the JBox2D jar file. After that i got stuck. How can i use this to program games for android? I'm very confused since Box2d was intended for C++.

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• Wireless issues BCM4311

  - by user207757

  I have been working with a nice Gent but I am getting stuck. I am just getting back in to Linux and Ubuntu was recommended. I like the look so far but the wireless isn't working I run the update and when it says complete it hangs at the end. Please let me know what to do at this point. "wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.11.0-12-generic/updates/dkms/ depmod.... DKMS: install completed." Hangs here!! Thanks for all your help, D.C.

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• After 10.10 -> 11.04 upgrade, can only login via Classic (No Effects)

  - by Ryan P.

  Yesterday I upgraded from 10.10 to 11.04, everything seemed to go okay until immediately after login: the desktop goes into a "corrupted" looking state (similar to having too high resolution set). I can see some kind of movement by moving the mouse around/right clicking, and can enter text terminals via ctrl + alt + f1 It does this in both plain "Ubuntu" and "Ubuntu Classic", and only seems to login/startup properly with Ubuntu Classic (No Effects). I have checked my video card (Radeon X600) and run the unity support test which passes with all "yes" results (Unity supported: yes): /usr/lib/nux/unity_support_test -p I have tried re-installing my Ubuntu desktop: rm -rf .gnome .gnome2 .gconf .gconfd .metacity sudo apt-get remove ubuntu-desktop sudo apt-get install ubuntu-desktop With no success. I can workaround for now with Classic (No Effects), but I'd really like to find the root problem. Any suggestions on what else to try would be appreciated!

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• Broadcom brcm80211 installation from source

  - by calmpitbull

  Hello need help to get my wifi chipset working.I have brcmsmac driver and i would like to have brcm80211 chipset up and running. I have tried everything but nothing helped? git://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git Copy brcm/bcm43xx-0.fw and brcm/bcm43xx_hdr-0.fw to /lib/firmware/brcm (or wherever firmware is normally installed on your system). still got brcmsmac ?? then i tryed git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git clone git://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git cd ~/linux-next/drivers/staging/brcm80211 nano Makefile the problem is that there is no brcm82011 folder?? do i follow cd ~/linux-next-a694cb1 like the link sad? i have Broadcom Corporation BCM4313 [14e4:4727]

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• Booting off a ZFS root in 14.04

  - by RJVB

  I've been running a Debian derivative (LMDE) on a ZFS root for half a year now. It was created by cloning a regular ext4-based install with all the necessary packages onto a ZFS pool, chrooting into that pool and recreating a grub menu and bootloader. The system uses an ext-3 dedicated /boot partition. I would like to do the same with Ubuntu 14.04, but have encountered several obstacles. There is no Trusty zfs-grub package The default grub package doesn't have ZFS support built in. I found a small bug in the build system responsible for that (report with patch created) and built my own grub packages. The built-in ZFS support is dysfunctional, it does not add the proper arguments to the kernel command line I thus installed the ZoL grub package I also use on my LMDE system, which does give me a correct grub.cfg However, even with that correct grub.cfg, the boot process apparently doesn't retrieve the bootfs parameter from the ZFS pool; instead the variable that's supposed to receive the value remains empty. As a result, initrd tries to load the default pool ("rpool"), which fails of course. I can however import the pool by hand, and complete the process by hand. If memory serves me well, I also had to disable apparmor, to avoid the boot process from blocking after importing the pool. Am I overlooking something? Just for comparison, I installed the Ubuntu 3.13 kernel on my LMDE system, and that works just fine (i.e. the identical kernel and grub binaries allow successful booting without glitches on LMDE but not on Ubuntu).

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• nVidia 9800 GTX+ X11 fails to initialize. no unity or lightdm

  - by rlemon

  I have just upgraded my work pc to 12.04 (not upgrade, fresh install), installing updates during the install, and after everything has loaded (with no errors) and I restart I get brought to console 1 tty login. Console 7 looks like this: IIRC I did not have to finagle with my drivers on 11.10 to get this card working. If this is in fact a driver bug I will remove this post and submit the bug but i'm not 100% confident that it is. I attempted to run unity --reset and got this: Lastly I tried $ sudo apt-get install nvidia-current which tells me nvidia-current is already the newest version. so I ran $ sudo dpkg-reconfigure nvidia-current which says /usr/sbin/dpkg-reconfigure: nvidia-current is broken or not fully installed. Anything I can try from here would be awesome. Currently the only way to get the system up and running was to shut down, plug one of my monitors into the onboard video, enable the onboard video card from the BIOS, then boot back up (and on my single monitor everything is fine). update So I have been able to boot fresh with the ext card plugged in as long as I don't take the updates with the install. past this if I only install the nvidia drivers (nvidia-current or nvidia-current-updates) from the main server (or canadian) I then get the problems.. My proposal; which I don't know where to look for: Can I try installing the previous version of this driver? In the past, on another machine I had issues with my NIC driver being funky... downgraded to the previous driver and bam everything was merry and well.

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• Setting Up Audio on a Server Install

  - by tdcrenshaw

  I'm running on a clean install of 10.10 Server edition and have alsa-base, alsa-tools, alsa-utils, alsaplayer, and alsa-firmware-loader installed. At one point I installed pulseaudio, but I have since removed it. I've tried the following lspci | grep audio 00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01) 01:06.0 Multimedia audio controller: Creative Labs [SB Live! Value] EMU10k1X aplay -l aplay: device_list:235: no soundcards found... alsamixer can not open mixer: No such file or directory When I search for modules with find /lib/modules/`uname -r` | grep snd I do get a list of modules I'm not very experienced with alsa setup, so I'm not sure where to go from here

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• huwai 1731 ( mobile broadband ) not working with dell inspiron 3521

  - by N.Ramkumar

  Please help, one of my friend shared this note ( enclosed below), I used these codes and my laptop is able open the data card but I am not getting any signals. I am able to work with wired connection, but wi-fi and mobile broad band are not working. Please help. sudo apt-get purge usb-modeswitch sudo apt-get update sudo spt-get install usb-modeswitch sudo apt-get update gksudo gedit /lib/udev/rules.d/40-usb_modeswitch.rules Once you enter these above commands 40-usb_modeswitch.rules text file will open. Then, copy below mentioned lines into 40-usb_modeswitch.rules text file. #Huawei E1731 ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1446", RUN+="usb_modeswitch '%b/%k'" Save the file Then type : sudo apt-get update Then restart the machine.

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• How to work around the home directory changing to /root when using sudo?

  - by Nathanel Titane

  Hello everybody! With Natty coming out soon, I've been at work updating my deployment and self-config script to make my desktop on 11.04 run and look the way I want it to. One bummer is that dbus seems to have changed and does not permit, in the same manner Lucid and Maverick did, the authentication of the current user by terminal call using grep and cat. Ideally, to run the script, I would sudo -s and then launch it as # chmod +x install && ./install Instead of returning my user name.. it now returns root and applies changes to the root profile and aborts whenever paths do not correspond. Here is my script header: #!/bin/bash ON_USER=$(echo ~ | awk -F'/' '{ print $1 $2 $3 }' | sed 's/home//g') export $(grep -v "^#" ~/.dbus/session-bus/`cat /var/lib/dbus/machine-id`-0) if sudo -u $ON_USER test -z "$DBUS_SESSION_BUS_ADDRESS" ; then eval `sudo -u $ON_USER dbus-launch --sh-syntax --exit-with-session` fi RELEASE=$(lsb_release -cs) How could I make it return the actual user now that natty is coming? Thanks for the help

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• Installing javahl on Maverick

  - by Jason

  Hi all, I'm trying to get Subclipse working in Eclipse Galeilo, and to do that I have to install the JavaHL library. I installed the library using sudo apt-get install libsvn-java, but the eclipse.ini file has to be modified to take in the new library as an argument. First change to the ini file was -Djava.library.path=/usr/lib/jni/, which produced the errors "no libsvnjavahl-1 in java.library.path" "incompatible javahl library loaded. 1.3.x or later required." according to the install printout, version 1.6.12 was installed. So, I added libsvnjavahl-1.so to the file path above, and produced the following errors: "no libsvnjavahl-1 in java.library.path" "no svnjavahl-1 in java.library.path" "no svnjavahl in java.library.path" What's going on here?

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• Update Manager Not working

  - by Deena

  Hi When I try to press CHECK Button in Updated, it is not looking for updates available. getting below error. "Failed to Download repository information" Check your Internet connection.. W:GPG error: http://archive.canonical.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W:GPG error: http://archive.canonical.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W:Failed to fetch gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_oneiric_main_source_Sources Hash Sum mismatch E:Some index files failed to download. They have been ignored, or old ones used instead. Ubuntu Version 11.10

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