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  • RAM Cache always full

    - by Tobias
    I have 6GB RAM, i5 2.4GHZ Processor running Ubuntu 11.10. When streaming online or opening several tabs in Chromium I soon have 4GB Memory in the cache. And this makes my Notebook slow. When streaming a video, after a few minutes it really slows down and stumbles/jerks. I partitioned my HD so that I have 8GB swap. What could the problem be? How can I solve this? P.s: initially I had 4gb and recently upgraded to 6GB, but I did not experience a significant change. P.P.S: if I enter "free -g" in the terminal this is the result: total used free shared buffers cached Mem: 5 2 3 0 0 0 -/+ buffers/cache: 1 4 Swap: 8 0 8

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  • Blank screen after Switch User or Resume

    - by matt wilkie
    About half the time when I switch users or resume from standby or resume the screen goes blank (black). If I work the cursor keys I can hear the system bell when it gets to the end of the user list. I can also successfully login, going from memory, but screen stays black. Sometimes closing and re-opening the lid will light up the screen again. Pressing the special Function key to enable/disable external monitor connection has no effect [Fn]-[F5],[Fn]-[F6]. If none of the previous work I need to put the computer into hibernation or full power off to restore screen function. If I watch closely when switching users I think I can see the screen initially start to light up and then quickly fade to black. The computer is an Acer Aspire 3500, model ZL6, running Ubuntu 10.10 installed 2 days ago. No proprietary drivers are in use. I'll provide a list of hardware details as soon as I can figure out how to generate that (didn't there used to be an entry for hardware details under the System menu?). Possibly related questions: No resume after Hibernate or Standby When I resume from suspension - the screen is blank Switch user fails to complete successfully For what it's worth, blank after resume also used to happen occasionally when the laptop was running XP-Home, but nowhere near as often, perhaps 6 or 8 times a year. UPDATE: I found System Administration System Testing and ran the Monitor test. It went very very dark, but the window elements could be discerned, and the whole screen flashed (from very very dark to black). On the third repeat of that same test the screen went to full blaupck and stayed there. Moving the mouse, via touchpad, or touch keys did not wake it up again. I had to close the lid and put the computer into hibernate, and press the power button to restore it. UPDATE2: output of lshw: http://pastebin.com/q7n8676r, lspci: http://pastebin.com/6ujzVK4r UPDATE3: sometimes I can restore the screen by flipping to console 1 with ctrl-alt-F1 and then back to graphical with ctrl-alt-F7.

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  • HUD keeps popping up when watching movie in movie player

    - by PNMNS
    When I watch a movie in Movie Player, the HUD pops up every 8 minutes or so. I am not touching the keyboard or the mouse at all. Alt makes the bar go away, and then 7-8 minutes later, it pops up again. This happens when I'm watching fullscreen or not fullscreen. Can you help me fix this? I've been using VLC instead (because it does not have this problem), but I don't like it as much as Movie Player.

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  • Configuring mouse buttons to switch between apps?

    - by Matt Gregory
    I just installed 14.04, so I'm using the default setup (Unity, I guess). I have these two extra mouse buttons on the side of my mouse. Is there any way to map these so they can switch between open apps? What would be perfect is if clicking on button 6 (or whatever it is) would cycle forward through apps, button 7 would go backwards, and holding one of the buttons would show the task list and let you click on the app you want. That's really what I want.

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  • Software updater not working

    - by Ashok
    The following error occured while opening software updater/ubuntu software center/sypnatic package manager/software sources. E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/ppa.launchpad.net_atareao_atareao_ubuntu_dists_quantal_main_i18n_Translation-en, E:The package lists or status file could not be parsed or opened. How to solve this problem?. Any help please.

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  • Ubuntu 12.04 LTS initramfs-tools dependency issue

    - by Mike
    I know this has been asked several times, but each issue and resolution seems different. I've tried almost everything I could think of, but I can't fix this. I have a VM (VMware I think) running 12.04.03 LTS which has stuck dependencies. The VM is on a rented host, running a live system so I don't want to break it (further). uname -a Linux support 3.5.0-36-generic #57~precise1-Ubuntu SMP Thu Jun 20 18:21:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Some more: sudo apt-get update [sudo] password for tracker: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run ‘apt-get -f install’ to correct these. The following packages have unmet dependencies. initramfs-tools : Depends: initramfs-tools-bin (< 0.99ubuntu13.1.1~) but 0.99ubuntu13.3 is installed E: Unmet dependencies. Try using -f. sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: initramfs-tools The following packages will be upgraded: initramfs-tools 1 upgraded, 0 newly installed, 0 to remove and 2 not upgraded. 2 not fully installed or removed. Need to get 0 B/50.3 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? Y dpkg: dependency problems prevent configuration of initramfs-tools: initramfs-tools depends on initramfs-tools-bin (<< 0.99ubuntu13.1.1~); however: Version of initramfs-tools-bin on system is 0.99ubuntu13.3. dpkg: error processing initramfs-tools (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates it's a follow-up error from a previous failure. dpkg: dependency problems prevent configuration of apparmor: apparmor depends on initramfs-tools; however: Package initramfs-tools is not configured yet. dpkg: error processing apparmor (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates it's a follow-up error from a previous failure. Errors were encountered while processing: initramfs-tools apparmor E: Sub-process /usr/bin/dpkg returned an error code (1) If I look at the policy behind initramfs-tools / bin I get: apt-cache policy initramfs-tools initramfs-tools: Installed: 0.99ubuntu13.1 Candidate: 0.99ubuntu13.3 Version table: 0.99ubuntu13.3 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages *** 0.99ubuntu13.1 0 100 /var/lib/dpkg/status 0.99ubuntu13 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages apt-cache policy initramfs-tools-bin initramfs-tools-bin: Installed: 0.99ubuntu13.3 Candidate: 0.99ubuntu13.3 Version table: *** 0.99ubuntu13.3 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 100 /var/lib/dpkg/status 0.99ubuntu13 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages So the issue seems to be I have 0.99ubuntu13.3 for initramfs-tools-bin yet 0.99ubuntu13.1 for initramfs-tools, and can't upgrade to 0.99ubuntu13.3. I've performed apt-get clean/autoclean/install -f/upgrade -f many times but they won't resolve. I can think of only 2 other 'solutions': Edit the dpkg dependency list to trick it into doing the installation with a broken dependency. This seems very dodgy and it would be a last resort Downgrade both initramfs-tools and initramfs-tools-bin to 0.99ubuntu13 from the precise/main sources and hope that would get them in step. However I'm not sure if this will be possible, or whether it would introduce more issues. I'm not sure how this situation arise in the first place. /boot was 96% full; it's now 56% full (it's tiny - 64MB ... this is what I got from the hosting company). Can anyone offer advice please?

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  • "bad mirror archive" : What should I put as the "mirror of ubuntu archive" on installation of ubuntu?

    - by rockit
    I'm trying to set up ubuntu from my old macintosh laptop, but when it asks me to put in the "mirror of ubuntu archive" I run into problems. For the mirror, I put in mirror.anl.gov for the ubuntu archive mirror directory, i put in pub/ubuntu/ Then I leave the http proxy blank and hit "continue" It then tries to "download release files", which starts at 0%, and eventually jumps straight to 100% and then it presents me with an error of "bad mirror archive". Any advice? I never set up ubuntu before, and I'm really struggling with this step.

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  • How can I set up Eclipse to work with a Quickly program?

    - by Niklas
    I've installed PyDev in Eclipse and have configured my project so that the project lies under Workspace/Eclipse and the Quickly files lies under Workspace/Quickly. To connect the two I've linked the Quickly project by creating a new folder in Eclipse under the project and select the "advanced option" in the dialog to link a folder into the project. That way I don't need to have the Eclipse project files in my Quickly project. But there is two issues that arises for me: In Eclipse I have to select a Python interpreter and I have no idea what to do. I've googled around for an answer but I can't find if Quickly uses Python 3 or 2.7. Can someone help me make an informed choice? (I'm new to developing Python, that's why I can't tell the difference by the syntax - if there even is a difference) I can't press the "Run" button to launch the application. Must I initialize a program with quickly run? I want to be able to debug through Eclipse, how do I configure this? I'm using Ubuntu 12.04.1 LTS and the Eclipse version from the repositories. Thanks!

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  • Can't mount cds after failed Brasero burn

    - by Allan
    Brasero failed to burn a disk recently, and now I can't access CD-ROMS. Even CD-Rs are not not showing. Using Ubuntu 11.10 on a Dell D510 Lattitude laptop. allan@allan-Latitude-D510:~$ cdrecord -checkdrive Device was not specified. Trying to find an appropriate drive... Detected CD-R drive: /dev/cdrw Using /dev/cdrom of unknown capabilities Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'TSSTcorp' Identification : 'DVD+-RW TS-L532B' Revision : 'DE04' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R96R My CD drive is now useless, and any help on getting it to read/burn would be appreciated.

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  • Copying files to Truecrypt file container hangs

    - by Wagner Maestrelli
    I have a dual boot installation with Windows 7 Ultimate (32-bits, NTFS file sytem) and Ubuntu 10.10 (32-bits, ext4 file system). I have installed the version 7.0a of Truecrypt in both Operating Systems. Located in the Windows 7 HDD I have a 150 GB encrypted file container. It is a standard and dynamic file container, which means it's not hidden and uses a sparse file. This file was created using the Windows version of the Truecrypt program. When I logon in Windows the container is mounted as the drive E: and everything works fine! In Ubuntu the Windows's NTFS file system is automaticaly mounted after I logon. I've configured that using the ntfs-config package. In my ~/.profile I have this line to mount the truecrypt's file container: truecrypt /media/7EDEBCFADEBCABB1/Users/Wagner/hd/hd.tc /media/truecrypt1 The file container is mounted after the logon without any problem. I can access it, copy files to/from it, etc. But when I try do copy relatively large amounts of data (~50 MB) to it via nautilus or cp -R, it starts the copy, copies some data until certain point and then it just hangs! The progress bar does not move anymore and nothing happens. There is no error, it just hangs and that's it. I have to kill the process myself. This problem does not happen in Windows: I can copy very large amounts of data to the container and it works great. But in Ubuntu the problem always happens! I mean, whenever I try to copy a bunch of files together the copy process hangs. Does anyone ever faced this problem? Can anyone help? Thanks!

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  • Ubuntu Software Center does not proceed from applying changes

    - by aneal
    I have a problem with Ubuntu software center. It is "Searching" and "applying changes" for long period of time. I tired to cancel by clicking cross(X) mark. However, it is now stuck at "cancelling". It won't let me download any new application even from terminal i guess. neal@neal-G50VT:~$ sudo apt-get install gnome-tweak-tool E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? neal@neal-G50VT:~$ sudo dpkg --configure -a dpkg: error: dpkg status database is locked by another process There are similar question here, but with no answers: Software Center stuck for Dropbox Software Center freezes during “applying changes

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  • Software installation problem

    - by user91155
    I just installed Ubuntu today and I went to the Ubuntu software center to install Adobe Flash player. And when the install button is pressed, I received the following message: Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Futhermore there could be a conflict between software packages which are not allowed to be installed at the same time. Please help me.

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  • How do I properly set up and secure a production LAMP Server?

    - by Niklas
    It's very hard to find comprehensive information on this subject. Either I found short tutorials on how you perform the installation, as simple as "apt-get install apache2", or outdated tutorials. So I was hoping I could get some professional information from my fellow members of the Ubuntu community :D I have performed a normal Ubuntu Server 11.04 with LAMP, SAMBA and SSH installed through the system installation. But I'm having some trouble setting up virtual hosts and to make the system secure enough to expose the server to the web. I've somewhat followed this tutorial this far. I have 3 sites in /etc/apache2/sites-available which all looks like this except for different site names: <VirtualHost example.com> ServerAdmin webmaster@localhost ServerAlias www.edunder.se DocumentRoot /var/www/sites/example CustomLog /var/log/apache2/www.example.com-access.log combined </VirtualHost> And I have enabled them with the command a2ensite so I have symbolic links in /etc/apache2/sites-enabled. My /etc/hosts file has these lines: 127.0.0.1 localhost 127.0.1.1 Ubuntu.lan Ubuntu 127.0.0.1 localhost.localdomain localhost example.com www.example.com 127.0.0.1 localhost.localdomain localhost example2.com www.example2.com 127.0.0.1 localhost.localdomain localhost example3.com www.example3.com And I can only access one of them from the browser (I have lynx installed on the server for testing purposes) so I guess I haven't set them up properly :) How should I proceed to get a secure and proper setup? I also use MySQL and I think that this tutorial will be enough to set up SSH securely. Please help me understanding Apache configuration better since I'm new to setting up my own server (I've only run XAMPP earlier) and please advise regarding how I should setup a firewall as well :D

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  • How to connect to internet using huawei E303C datacard

    - by Rahul Choudhary
    It is very difficult to use ubuntu. After six hours of research on various websites and ubuntu blogs I was unable to connect to internet using my Huawei DataCard E303C. I wonder that if it takes so much long time to figure out how to connect to internet using a 3g datacard (Huawei E303C) to connect to internet, then how would I do my daily computing tasks using ubuntu. Is there anyone who can help me with that. My personal practical experiences says that using ubuntu instead of windows is not different but tough. Yes it is very tough to use ubuntu. Why it cannot be like we double click and software gets installed as it happens in windows and why we always have to use terminal to install everything. Why everything in ubuntu is very difficult and tough to accomplish. I am drifting away from ubuntu. Can any developer at ubuntu help keep my interest in ubuntu? Is there anyone who can lure me to use ubuntu again?

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  • updatedb & locate command problem - Files from external hard drive are no longer indexed after rebooting

    - by user784637
    Files from my external hard drive are no longer indexed after rebooting. I have to remount and then run # updatedb after each reboot. The problem is updatedb takes a few minutes for my external hard drives. Is there any way I can retain indexing for my externals after I reboot so that the locate command can search through my externals? EDIT: Per Request here are my specs: $ cat /etc/updatedb.conf PRUNE_BIND_MOUNTS="yes" # PRUNENAMES=".git .bzr .hg .svn" PRUNEPATHS="/tmp /var/spool /media" PRUNEFS="NFS nfs nfs4 rpc_pipefs afs binfmt_misc proc smbfs autofs iso9660 ncpfs coda devpts ftpfs devfs mfs shfs sysfs cifs lustre_lite tmpfs usbfs udf fuse.glusterfs fuse.sshfs ecryptfs fusesmb devtmpfs" # mount /dev/sda5 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/me/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=me) /dev/sdb1 on /media/me type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions) /dev/sdd1 on /media/Little Boy type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions) /dev/sde1 on /media/Fat Man type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions) # on_ac_power; echo $? 255

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  • debian/rules error "No rule to make target"

    - by Hairo
    i'm having some problems creating a .deb file with debuild before reading some tutorials i managed to make the file but i always get this error: make: *** No rule to make target «build». Stop. dpkg-buildpackage: failure: debian/rules build gave error exit status 2 debuild: fatal error at line 1329: dpkg-buildpackage -rfakeroot -D -us -uc -b failed Any help?? This is my debian rules file: #!/usr/bin/make -f # -*- makefile -*- # Sample debian/rules that uses debhelper. # This file was originally written by Joey Hess and Craig Small. # As a special exception, when this file is copied by dh-make into a # dh-make output file, you may use that output file without restriction. # This special exception was added by Craig Small in version 0.37 of dh-make. # Uncomment this to turn on verbose mode. #export DH_VERBOSE=1 build-stamp: configure-stamp dh_testdir touch build-stamp clean: dh_testdir dh_testroot rm -f build-stamp configure-stamp dh_clean install: build dh_testdir dh_testroot dh_clean -k dh_installdirs $(MAKE) install DESTDIR=$(CURDIR)/debian/pycounter mkdir -p $(CURDIR)/debian/pycounter # Copy .py files cp pycounter.py $(CURDIR)/debian/pycounter/opt/extras.ubuntu.com/pycounter/pycounter.py cp prefs.py $(CURDIR)/debian/pycounter/opt/extras.ubuntu.com/pycounter/prefs.py # desktop copyright and others (not complete, check) cp extras-pycounter.desktop $(CURDIR)/debian/pycounter/usr/share/applications/extras-pycounter.desktop

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  • Package Installation Failure

    - by mahima
    Whenever I try to install any new package or upgrade a package, it fails with below mentioned error: Setting up install-info (4.13a.dfsg.1-5ubuntu1) ... /etc/environment: line 1: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games: No such file or directory dpkg: error processing install-info (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already Errors were encountered while processing: install-info E: Sub-process /usr/bin/dpkg returned an error code (1) I checked all the directories mentioned in PATH variable exists.

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  • flash video appears blue ubuntu 12.04

    - by pst007x
    This is a duplicate, however the solution given does not work. After updating to Ubuntu 12.04 from Ubuntu 11.10, all video is now blue, whether playing in a browser or a player. I have tried to uninstall all Flash and re-installed but makes no difference. Does anyone have any ideas? Fix (work around) Issue: All web browsers flash player video is blue Chromium Google Chrome Firefox Both flash plugins causes flash video to appear have a blue overlay, so remove. Adobe - flashplugin Flashplugin - installer Solution (not as functional as adobe flash plug in but it works) Install Lightspark (plus any browser-plugins) or Install Gnash (plus any browser-plugins) FIX (Possible) Removed: Gnash-browser plugins Video Decode and Presentation API for Unix (libraries) libvdpau1 Installed: Adobe-flashplugin Re-started browser, and it worked for me.

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  • How do I clear xmodmap settings?

    - by Wayne Werner
    Exactly what the title asks. How do I clear xmodmap settings? I have an IBM model M, and somehow xkeycaps got it into its head that my "End" key was not any key at all. xev reports keypresses when I use it, so I know the event is being generated by the keyboard. Also, xkeycaps thinks that my arrow keys are all wonky, and apparently the scrollbar is broken so it only scrolls down - so I can't scroll up to find an IBM keyboard that just maybe is close to my map so I can fix my keys. So I'm trying to reset my keyboard to the default settings, but the xmodmap manpage is woefully devoid of "reset all" or "clear all" or anything of that nature (that I was able to find). Help would be greatly appreciated!

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  • Unable to install Apache 2.2.22 in Ubuntu 12.04

    - by Martin Betz
    I am not able to install Apache 2.2 in Ubuntu 12.04. Here is a snippet from my console log (sorry, it is in German): apache2 : Hängt ab von: apache2-mpm-worker (= 2.2.22-1ubuntu1) soll aber nicht installiert werden oder apache2-mpm-prefork (= 2.2.22-1ubuntu1) aber 2.2.22-1ubuntu1.1 soll installiert werden ... That means like: apache2 depends from apa..worker, but that should not get installed OR from ap...prefork..ubuntu1, but ap...prefork..ubuntu1.1 should get installed. I have no idea how to tackle that issue..

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  • Ubuntu 12.04 installer Crashed

    - by Umair Mustafa
    I downloaded Multiple times Ubuntu 12.04 and Ubuntu 12.04.1. And tried to install them using first Virtual box if it work I move to install on actual drive. I dont knw but 12.04.1 dont wanna install on my system So i downloaded 12.04 release and installed it on Virtual box and it installed perfectly then i moved on to install it as Dual OS along with windows 7 but the installer crashed just like the other version and I dont know what the heck is the problem with ubuntu OS Installers. Ubuntu really need to work on their Installer. I love Ubuntu but such things are really headache. At first I thought image was not properly so i burned on another dvd but alas no use same stupid error. Now there are 3 images of 12.04 and 2 images of 12.04.1 and none of them is working on my system. And wasted two dvds. Does anyone know how to solve this problemo.

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  • Codeblocks gui problems [closed]

    - by foobar
    I'm having problems with Code::Blocks 10.05 my os specs: Ubuntu 11.04 - fresh install gtk theme: Ambiance Unity The actual problem (don't mind the code nor the errors) the most visible one - stripes As I scroll down the code, the horizontal stripes start to show up. I think it's some problem with the screen updating, because when I force it to update (for example by selecting the text or invocating the contextual menu by pressing the right mouse button), the stripes disappear. the second one - font colour bug I believe this is the Ambiance's bug because it doesn't happen in other themes. You can see it in the left panel where it says "Workspace" and in the panel at the bottom in the Build messages tab: the selected line makes the text barely readable. Is there any fix to these bugs? Thanks.

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  • Help with Bash script

    - by Andrew
    #!/bin/bash if [ "$(Which gimp)" != ""] then { if [ "$(gimp -version)" != 2.8 ] then { sudo apt-get remove gimp sudo add-apt-repository ppa:otto-kesselgulasch/gimp sudo apt-get update sudo apt-get install gimp } else echo You already have gimp 2.8 fi } else { sudo add-apt-repository ppa:otto-kesselgulasch/gimp sudo apt-get update sudo apt-get install gimp } fi I am trying to make a gimp 2.8 installer in bash Please help me?

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  • Ubuntu won't boot after initializing the Build Environment for Android

    - by EntryLevelDev
    My laptop worked perfectly util I initialized the build environment for Android. The GUI won't start. It looks like some kinds of graphics card problems. I tried to fix it but after trying a lot of solutions on the internet nothing worked. (I only know basic linux stuffs.) I've already reinstalled the OS. However, I still want to build the Android from source. Any idea what might cause the problem? any workaround? Here is the command that I used to initialize the build environment: $ sudo apt-get install git gnupg flex bison gperf build-essential \ zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \ libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \ libgl1-mesa-dev g++-multilib mingw32 tofrodos \ python-markdown libxml2-utils xsltproc zlib1g-dev:i386 $ sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/i386-linux-gnu/libGL.so My laptop model is asus u36sd. (https://help.ubuntu.com/community/Asus_U36SD) Thanks Edit: Base on this, I guess libgl1-mesa-glx:i386 might cause the issue. sudo apt-get install libgl1-mesa-dri:i386 The following packages will be REMOVED: libgl1-mesa-dri-lts-quantal libxatracker1-lts-quantal ubuntu-desktop xorg xserver-xorg-lts-quantal xserver-xorg-video-all-lts-quantal xserver-xorg-video-vmware-lts-quantal The following NEW packages will be installed: libdrm-intel1:i386 libdrm-nouveau1a:i386 libdrm-radeon1:i386 libdrm2:i386 libexpat1:i386 libffi6:i386 libgl1-mesa-dri:i386 libllvm3.0:i386 libpciaccess0:i386 libstdc++6:i386

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  • Keybindings for individual letter keys (not modifier-combinations) on a GtkTextView widget (Gtk3 and PyGI)

    - by monotasker
    I've been able to set several keybord shortcuts for a GtkTextView and a GtkTextEntry using the new css provider system. I'm finding, though, that I only seem to be able to establish keybindings for combinations including a modifier key. The widget doesn't respond to any bindings I set up that use: the delete key the escape key individual letter or punctuation keys alone Here's the code where I set up the css provider for the keybindings: #set up style context keys = Gtk.CssProvider() keys.load_from_path(os.path.join(data_path, 'keybindings.css')) #set up style contexts and css providers widgets = {'window': self.window, 'vbox': self.vbox, 'toolbar': self.toolbar, 'search_entry': self.search_entry, 'paned': self.paned, 'notelist_treeview': self.notelist_treeview, 'notelist_window': self.notelist_window, 'notetext_window': self.notetext_window, 'editor': self.editor, 'statusbar': self.statusbar } for l, w in widgets.iteritems(): w.get_style_context().add_provider(keys, Gtk.STYLE_PROVIDER_PRIORITY_USER) Then in keybindings.css this is an example of what works: @binding-set gtk-vi-text-view { bind "<ctrl>b" { "move-cursor" (display-lines, -5, 0) }; /* 5 lines up */ bind "<ctrl>k" { "move-cursor" (display-lines, -1, 0) }; /* down */ bind "<ctrl>j" { "move-cursor" (display-lines, 1, 0) }; /* up */ } Part of what I'm trying to do is just add proper delete-key function to the text widgets (right now the delete key does nothing at all). So if I add a binding like one of these, nothing happens: bind "Delete" { "delete-selection" () }; bind "Delete" { "delete-from-cursor" (chars, 1) }; The other part of what I want to do is more elaborate. I want to set up something like Vim's command and visual modes. So at the moment I'm just playing around with (a) setting the widget to editable=false by hitting the esc key; and (b) using homerow letters to move the cursor (as a proof-of-concept exercise). So far there's no response from the escape key or from the letter keys, even though the bindings work when I apply them to modifier-key combinations. For example, I do this in the css for the text-widget: bind "j" { "move-cursor" (display-lines, 1, 0) }; /* down */ bind "k" { "move-cursor" (display-lines, -1, 0) }; /* up */ bind "l" { "move-cursor" (logical-positions, 1, 0) }; /* right */ bind "h" { "move-cursor" (logical-positions, -1, 0) }; /* left */ but none of these bindings does anything, even if other bindings in the same set are respected. What's especially odd is that the vim-like movement bindings above are respected when I attach them to a GtkTreeView widget for navigating the tree-view options: @binding-set gtk-vi-tree-view { bind "j" { "move-cursor" (display-lines, 1) }; /* selection down */ bind "k" { "move-cursor" (display-lines, -1) }; /* selection up */ } So it seems like there are limitations or overrides of some kind on keybindings for the TextView widget (and for the del key?), but I can't find documentation of anything like that. Are these just things that can't be done with the css providers? If so, what are my alternatives for non-modified keybindings? Thanks.

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