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• Where do I get extra Compiz plugins?

  - by jasoncruz98

  I installed Compiz on my laptop running Ubuntu 11.10 last week. The way I installed it was kind of different, I opened up a terminal and typed this command: sudo apt-cache search compiz After that, I installed all the packages that appeared in the terminal window. I enjoyed all the effects of Compiz like Paint fire on screen, Desktop Cube, but I can't help but noticing people having some extra plugins which I don't have, such as Atlantis, Snow, Tile and much more. Where are they getting all those plugins and how do I get them?

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• What does intermittent "Input/output error" suggest?

  - by dan

  Lately my Ubuntu 12 system has started acting very strange. Sometimes the computer freezes and then unfreezes 2 minutes later, and other times when I try a basic command like less I get the error bash: /usr/bin/less: Input/output error. But this is intermittent too. Any suggestions? Also if I try sudo reboot and enter my password, I get sudo: unable to open /var/lib/sudo/plato/7: Read-only file system Before I used to be able to do sudo reboot fine. If I tail /var/log/syslog I do see these curious lines: .... ata1: softreset failed (device not ready) .... ata1: hard resettting link .... ata1: link is slow to respond, please be patient (ready=0) What can I do to fix this?

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• Difference between ~/folder and /home/username/folder when creating a path in /etc/environment

  - by r0xx4nne

  I had an executable script on my ubuntu located on ~/project/ directory and I tried to add that path to /etc/environment . So , I edit the path to this PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:~/project/" . Then , I logout and login back , open the terminal as su and run the command to execute my script on that folder but the result is command not found. Then, I change the path in /etc/environment to PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/r0xx4nne/project/" and voila it works.Now i can run the executable script inside ~/project/ without fail under su command. My question is , what's the difference between ~/project and /home/r0xx4nne/project when it comes in case of creating a path in /etc/environment ? Why it happened to be like this? I am a newbie and I just want to know more . Thanks for any reply .

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• How to add support for the JPEG image format

  - by Samir Sabri

  After installing Imagemagick, I've tested it with jpg image, like this: identify 1.jpg But, I got this result: identify: no decode delegate for this image format `1.jpg' @ error/constitute.c/ReadImage/550. Then, I tried to add support for JPEG format by: yum install libjpeg libjpeg-devel but, I got: Setting up Install Process No package libjpeg available. No package libjpeg-devel available. Nothing to do I thought I need to update the apt-get, I did: apt-get install libjpeg libjpeg-devel but, I got: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libjpeg E: Unable to locate package libjpeg-devel Is there an easy way to get those libraries installed ? I am using Ubuntu 12.04.

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• audio not playing through headphones

  - by JItendra

  I am using DELL alienware m14x. I have installed ubuntu 14.04 on my laptop. The problem that I am facing is that the audio plays only through speakers all the time even I though i plugin my headphone. When I go to sound settings it is showing me headphones in the "play sound through" which means that my system is able to detect the headphones but just the audio doesn't play through the headphones, instead it still plays through speaker. Can anyone one help me to figure it out please ! Thanks and Regards, Jitendra

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• How can I lower the CPU temperature?

  - by nmc

  I have installed Ubuntu 12.04 on my EeePC 1015PX and I've noticed that the CPU temperature does not go below 60ºC (70 is usual). Looking at powertop it seems the 2 cores (Atom N570) are idle most of the time. I've installed jupiter (w/ jupiter-eee-support) but it did not help. Edit: Meanwhile I've found out that echo 2 > /sys/devices/platform/eeepc-wmi/cpufv is supposed to turn on Super Hybrid Engine. Though it seems to help a bit (temperature goes down 2-3ºC), the temperatures are still in the 60-70ºc range.

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• Graphics system failure

  - by anonymous coward

  I just upgraded two versions of Ubuntu to Oneiric after a recent set of updates broke Audacious 2.4.something in Maverick for me. When it was all finished my Asus Eee 1215N with the 1366x768 screen and the notoriously unsupported Nvidia Ion2 Optimus chipset was working on minimum compatibility fallbacks at 1024x768 resolution. So I did a little bit of reading (not enough) and tried deleting a couple parts of the graphics system to see if I could force a retry on the autodetection. The result: No graphical shell works now. Attempted so far: -reinstalling xorg/nouveau, didn't work. -installing bumblebee/nvidia-current, didn't work. -sudo dpkg-reconfigure -phigh -a, didn't work. I'd like to stress that this is otherwise a perfectly functional installation that I had spent some time setting up already (including a successful compile of Audacious 3.21 that was working with all the plugins). Is there a way for me to rebuild the graphics system from scratch or should I just give up, cry a little, backup data, wipe partition and reinstall with a USB drive?

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• Sending keystrokes using Python

  - by Rudi Strydom

  I am trying to build a remote control application to control media on my Ubuntu. Does anyone know a way in order to accomplish this. The media keys in particular. Thank you. EIDT: I have tried using XTE, but is seems python in truncating the input or there is a limit or something which means that you can't do Ctrl + Key key presses, which wont suit my needs. I also tried uinput, but alas you need to run it as root, which also will not quite my needs. Now I am looking at EVDEV which seems promicing, that is if I can get it working.

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• Zoom out recursively for all the folders

  - by Chaitanya

  I want to reduce the icons size in all the folders. In ubuntu 11.10, version, there is an option to decrease icons size and I changed there, and all the icons size is reduced recursively. I am using 11.10 version now. Here, whichever folder I open every time I need to zoom out.(I want zoom out). If I have 20 recursive folders, I open each and every folder and right click there and zoom out. Do we have any global command or grapical tool to reduce the icons size in all the folders. I was told that unity will do this work but I am confused how to use it. If unity is the only solution, please guide me where to change the size. Thanks a ton, Thanks, Chaitanya.

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• Unable to enumerate USB device

  - by takeshin

  Hello, My syslog is constantly filled with messages like this: Oct 16 11:48:35 my-laptop kernel: [61470.980078] hub 1-0:1.0: unable to enumerate USB device on port 2 Oct 16 11:48:35 my-laptop kernel: [61471.192079] hub 3-0:1.0: unable to enumerate USB device on port 2 The only USB device I use is Microsoft Natural Wireless Laser Mouse 7000. The laptop model is HP dv9500, Ubuntu 10.10, but the same was in the versions before. How can I fix this? Edit: Here's the output of sudo lsusb: Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 003: ID 045e:071d Microsoft Corp. Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub All USB devices seems to be working fine. I have some problems with DVD-R and sound card, but they are not USB.

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• Power management issues on an Asus N55

  - by Andrea Borga

  I noticed that with respect to Win7 on my Asus N55 Ubuntu 12.04 tend to overheat the system. After startup the fan controller takes control of the fan, I could here it slowing down, after a few second following a login the fan increases its speed again. Though there are no processor hungry process: top shows only Xorg consuming 4%. Even with the system monitor the CPUs load look ok. Is it a power management related problem? This can cause battery life troubles in general, and electronics is never happy to be overheated. Is there a better tool to root the cause of the issue?

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• How to prevent thunderbird gmail/IMAP from marking deleted/archived emails as read

  - by Jesse

  I have thunderbird setup to use gmail IMAP. I followed the various guides that recommend setting Edit-Account Settings-Server Settings-When I delete a message-Remove it immediately. Unfortunately this didn't have quite the effect I wanted and after more digging I discovered here that: [Thunderbird] [Gmail] Mark Deleted = Archive Copy to [Gmail]/Trash = Delete Permanently Remove it immediately = Archive Unfortunately whenever I deleted (archived) a message it was also marked as read whether it had been or not. I didn't want this because I like to keep my inbox clean and archive anything that doesn't actually matter, such as funny emails, etc. and then go back and look through the archive later when I have time. What settings do I need to prevent messages from being marked read when I delete them? I'm using Thunderbird 17.0 on Ubuntu 12.04

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• Backup systems config files

  - by David ???

  I'm planning on installing nVidia proprietary drivers on my Ubuntu 10.10. Historically this always ends-up with me being left with no graphical interface. No ability to revert - and reinstalling the whole system. So now, before trying this anew, I wish to backup all relevant config files. I'll try 1 or 2 methods. I'll list each one's commands. I'll appreciate if anyone can tell me how to backup the relevant file, or what's the reverse of this operation. 10x, David Method I - as described here: apt-get --purge remove xserver-xorg-video-nouveau As described in this answer: edit /etc/default/grub and add the line GRUB_CMDLINE_LINUX="nouveau.modeset=0" sudo update-grub Reboot Install original drivers downloaded from nVidia site. Method II - as described here: sudo apt-get purge nvidia* [possibly 'sudo gedit /etc/modprobe.d/blacklist.conf' adding 'vga16fb' 'nouveau' sudo apt-get install nvidia-glx-185 sudo modprobe nvidia sudo lsmod | grep -i nvidia sudo nvidia-xconfig

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• Starting java processes with Upstart

  - by user265330

  I want to start a java process using Upstart. Currently, on our OpenSuSE servers, I use the System V init system to achieve this, but on our Ubuntu servers I'd rather use Upstart. But I have two questions... I have an Upstart job (a task) that configures the server, called, say, myconfig. And in the job that starts my java processes I ostensibly have: start on stopped myconfig exec /path/to/myjavastartscript.sh myjavastartscript.sh runs 'java -classpath blah MyClass'. In System V init, starting the service runs 'nohup /path/to/myjavastartscript.sh &'. So my first question is whether I still need to do the nohup or run-in-background with the exec command? When running, MyClass starts other Java processes. In System V init, the service stop just looks for java processes owned by a certain user and kills them. My second question is how could I control the termination of these processes with Upstart?

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• My computer stops seeing the other computers on my network

  - by dan

  I'm running Ubuntu 11.04. Sometimes my computer stops seeing the names of the other computers on my network. So I can no longer log into another computer by typing the hosting name e.g. ssh [email protected] I can still log in using the local network IP address. How can I get the first way to work again without rebooting? I know this problem is local to the computer. The other computers on my network can still see one another. But they can no longer see the computer I'm working on, not even by local ip address.

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• OpenVPN is installed but it is not an avaliable option in the network manager

  - by Relik

  I have installed and used openVPN once before in a previous install of Ubuntu 12.04. I have since reformatted, and now after reinstalling openVPN it will not show up in the network manager. I am trying to setup my VPN connection and the only option I have to choose from is PPTP. EDIT: I have Gnome Shell and KDE installed as well, Gnome being my primary. I cannot find OpenVPN in either Gnome or Unity, however I can add it without an issue in KDE. Not really an acceptable workaround, but it works for now. I would still like to be able to do it in GTK based desktops as well.

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• Lenovo Y460 Shutdown/Reboot/Logoff doesn't work

  - by ultimatebuster

  This is a part of the massive dump of problems I'm encountering with my Lenovo Y460 and Ubuntu. Problem: Cannot shutdown/reboot/logoff. Logoff issue: http://ubuntuforums.org/showthread.php?t=1791439 Shutdown and Reboot often freezes without doing anything. Currently can only use hard reset. Maybe related to the tricks I did to work around the ATI/Intel issue. See: Lenovo Y460 ATI PowerXpress issue I'm not sure where I can find the shutdown/reboot logs. If you tell me I'll be happy to provide them. Not sure what to do as of right now other than never shutdown/reboot or logoff

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• Can't install lua on 12.04 on Chrome book

  - by Anthony

  I am currently trying to install lua on my Ubuntu 12.04 on Chrome book and I keep getting this error: I'm doing good learning different programming languages (self taught) and well I wanted to start learning Lua. That error is keeping me from doing that unfortunately. I've tried doing it with and without of root access and still no success. Does anyone know what might be causing the problem or of a different way of installing Lua? Thanks a ton! Don't mind the top of the image just me taking out my frustration.

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• Cannot install vim

  - by Max Popp

  I am running ubuntu 11.10, as xubuntu, in an amd64 pc, configured as dual boot with win7 . I tried installing vim with this: sudo apt-get install vim I got these error message: "The following packages have unmet dependencies: vim : Depends: vim-common (= 2:7.3.154+hg~74503f6ee649-2ubuntu2) but 2:7.3.154+hg~74503f6ee649-2ubuntu3 is to be installed E: Unable to correct problems, you have held broken packages." I only have a very faint idea of what the problem is, and none whatsoever on how to correct this. Hope you guys can help. Thanks

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• Why doesn't LightDM always doesn't start under XEN

  - by DaedalusFall

  When I use XEN on Ubuntu (12.10), I have a problem that lightdm sometimes doesn't start when I boot up, I have to log in on the TTY and use sudo service lightdm restart, sometimes several times. Some of the time I get a mouse cursor and a blinking underscore in the top left of the (otherwise black) screen, but after restarting lightdm a few times it eventually comes up properly. I've tried this with XEN from the repos (version 4.1), XEN 4.2 built from source, an NVIDIA card and a radeon card (not using fglrx, which I can't seem to make work under XEN), the results are more or less the same. I can't see anything obvious in my Xorg.log, but I'm not really sure what to look for. Anyone had similar problems or luck getting xen working? Thanks in advance.

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• Display brightness adjustment not working

  - by nibot

  I have Ubuntu 11.04 installed on a Lenovo Thinkpad T410 laptop with nVidia GT218 display controller. I am unable to adjust the display brightness. Pressing Fn-Home and Fn-End brings up the display brightness on-screen display and the indicated level increases or decreases as it should. But the actual display brightness does not change. Earlier I was able to Ctrl-Alt-F1 over to a text terminal and then do Fn-Home / Fn-End to successfully change the display brightness, and then Ctrl-Alt-F8 back to the Gnome session with the new brightness. But after upgrading to 11.04 the psuedoterminals have disappeared.

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• iptables -L lags on non localhost or anywhere address

  - by DazSlayer

  I am trying to configure iptables for ubuntu 10.04 and I have a problem with iptables -L lagging on rows where the destination or source address is not localhost or anywhere. The following entries will cause lag on their row: iptables -A INPUT -p tcp --dport 111 -s 192.168.1.14 -j ACCEPT iptables -A INPUT -p tcp --dport 90 -d 192.168.1.14 -j ACCEPT while this does not: iptables -A INPUT -p tcp --dport localhost -s 192.168.1.14 -j ACCEPT iptables -A INPUT -p tcp --dport localhost -d 192.168.1.14 -j ACCEPT I feel like this might be due to iptables checking to see if the ip is reachable. If not, what is the cause, if it is how can I disable it?

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• Temporary dimming of desktop in 12.04

  - by deshmukh

  I am running Ubuntu 12.04 (almost default install regularly updated) Unity interface on ASUS X53U (AMD Brazos Dual Core C60 with 2GB RAM). On launching Thunderbird and Firefox, the application dims and the cursor changes to wait mode. In case of Thunderbird, this is most pronounced with the wait time of up to a minute. Memory status checked with free indicates around 500MB of free memory on such occasions. The OS is stable and I can switch to a different work-space, etc. What could this be? Is this something normal?

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• Hide Grub menu and keystroke to reveal

  - by Logan Williams

  How do you have the grub appear on a key combination, but have windows boot default. I'm running ubuntu 11.10 and grub 2.0. Here is my current /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX=" quiet vga=769" Thanks! And here is my /boot/grub/grub.cfg http://pastebin.com/HbDBe8xz

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• Is it possible to get the old workspaceswitcher back in the top-panel?

  - by Arne

  I just updated my Ubuntu from 10.04 to 12.04 yesterday and so far I'm very satisfied with it. There is only one thing which is still missing to get back just the same comfort as I had with the previous version. I work on 4 workspaces and would like to have the ability to switch from one to another by just one click. With Gnome there was the possibility to add the workspace switcher to the top-panel next to the system tray and I could easily click on just the workspace I wanted to switch to. Of course there I could switch by using the keyboard shortcuts, but I would like to use the mouse in addition. I don't like using the switcher on the left side because it's much slower. Is it possible to get the old workplace switcher back in the panel at the top?

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