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• How to disable discrete GPU using NVIDIA drivers?

  - by penzoiders

  I have a DELL studio XPS 13 (aka 1340) as of 12.04 most things run smoothly out of the box, but I have some power draining and warmness issues (if not to be called terrible heat issues) The system came with a NVIDIA GeForce 9500M (which has Hybrid SLI) and it shows up in "lspci" as these 2 cards 02:00.0 VGA compatible controller: NVIDIA Corporation G98 [GeForce 9200M GS] (rev a1) 03:00.0 VGA compatible controller: NVIDIA Corporation C79 [GeForce 9400M G] (rev b1) I had to install nvidia-current over noveau driver 'cause noveau does freeze the system after suspension. By installing nvidia-current and running nvidia-xconfig the resume process after suspension is fixed. By the way both with nvidia-current and noveau the system drains a lot of battery and heats up a lot. I suppose this is because the discrete GPU is always on. I don't really need 3D graphics on this system, if not the minimal to run unity and compiz for window management. So my question is: How do I disable, using nvidia-current, the discrete GPU 9200M and use only the integrated one 9400M? notes: In BIOS I have no option to disable discrete GPU This I think is not applicable because of the suspension-freeze issue (with noveau): https://help.ubuntu.com/community/HybridGraphics I've found this but I don't know which --sli option I should choose to fit my needs: http://manpages.ubuntu.com/manpages/hardy/man1/nvidia-xconfig.1.html My system has not optimus or cuda, but anyone can tell me if bumblebee can work for me?

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• Blackscreen while installing 12.10

  - by Nalelvon

  everytime I try to install ubuntu 12.10 on my laptop i get a blackscreen after clicking on "install ubuntu", "try ubuntu without installation" or "ubuntu live" i tried it with nomodeset, nolapic and acpi=off too but nothing works. Sometimes i even get so a loading screen with nothing but "Ubuntu 12.10" and 4 dots in the middle, after that shortly a blackscreen appears with some text on it and then the complete blackscreen appears. As i tried with "no splash" instead of "quiet splash" it shows me something with graphic and determined in it but it was to fast away in a blackscreen to remember. Has someone any idea what I can do to get this working? Sry for my bad english i'm actually from germany. Sincerely Nalelvon

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• Cat all files in a directory, with a specific file at the beginning an end...?

  - by Aeisor

  Is there a way to cat all files in a given directory, but with a particular file at the beginning and end? For example, say I have: file1.js, file2.js, file3.js, file4.js, file5.js -- Effectively I would like to cat file2.js file*.js file3.js > /var/www/output.js I've tried a few variations of these find ! -name "file2.js" ! -name "file3.js" -type f -exec cat file2.js {} file3.js > /var/www/js/output.js \; find ! -name "file2.js" ! -name "file3.js" -type f | xargs -I files cat file2.js files file3.js > /var/www/output.js but the best I can get out of it is file2.js added before and file3.js added after all other files (multiple times) I know I could specify the files in the order I wanted manually, but this is not maintainable (I'm expecting, potentially 100 files). I have looked through man cat, as well as a handful of websites devoted to xargs, find and cat to no avail. Thanks in advance.

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• Ubuntu 12.10 install freezes at configuring hardware

  - by Max Keener

  I'm installing Ubuntu 12.10 (64 bit) from a bootable USB stick. At first I had trouble with a black screen after selecting 'install ubuntu'. I added nomodeset and xforcevesa to the options to fix that problem. Now when installing, it hangs at 'Configuring Hardware', specifically at ubuntu ubiquity: update-initramfs: Generating /boot/initrd.img-3.5.0-17-generic Specs: Asus UX32a DB51 Intel Core i5 3317U 1.7 GHz 4GB DDR3 RAM intel hd 4000 graphics 500 GB harddrive with 25 GB sandisk ssd I'm trying to install Ubuntu by itself right now on the SSD. I made custom partitions (100 mb EFI boot partition, 4GB swap space, 20GB ext4 mounted on '/') I've tried re-downloading the ubuntu iso and creating a new boot image on my flash drive and it results in the same problem. Thanks in advance for the help!

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• Xubuntu fails to stay awake when the machine is under load

  - by Alex

  I have the following problem with a fresh install of Xubuntu 12.04: I set up power management options so as to send the machine to sleep after it's been idle for a while. My intention was to have it finish some lengthy numbercrunching and then fall asleep late at night when nobody's present to shut it down. What actually happened, however, is that the machine goes to sleep whenever the desktop session has been idle for the specified amount of time, and it does not seem to care at all about CPU load, and I had to disable sleep altogether. Is there any way to fix this?

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• Not able to create Live CD

  - by Jagannath Harati

  I downloaded 12.04.1 on a Windows 7 machine. I burnt a DVD from the ISO image using Windows Disc Image Burner. I had 'verify disc' on. The disc was created successfully with no errors. I was not able to use this disc for installing Ubuntu on another Windows 7 machine. I do not get the Welcome Screen on booting. I find that on the disc I burnt, I do not find bin, disc tree, programs directories and cdromupgrade, start.*, ubuntu* files. I found the boot directory and WUBI executable file. I tried downloading several times with the same result. I had similar problem earlier with 11.04. Can you please let me where the problem is?

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• {12.04} cannot open software center or use apt-get install

  - by d6braun

  i have been trying to get it working for over an hour and a half now, the code below is what i keep getting. the example is from me trying to install synaptic, but i get the errors on most apt-get commands and update manager. sudo apt-get install synaptic Reading package lists... Error! E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/wine.budgetdedicated.com_apt_dists_edgy_main_binary-i386_Packages E: The package lists or status file could not be parsed or opened.

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• How do I find a proprietary driver for the Intel graphics card I have?

  - by user69798

  I have an Intel corporation core processor integrated graphics controller (rev 18), and I am trying to get a proprietary driver for my graphics card so I can play Amnesia from the Humble Bundle. I am a female that can easily follow directions but doesn't know much about Linux yet. If you give me precise directions, I will follow them so you can help me fix the problem. I would really appreciate it! My laptop is a Dell n7010. Additional info: I believe that it is the graphics card that is causing Amnesia to crash, but I am unsure. I have tried running it on the lowest possible settings, and it crashes after the first loading screen. :( Also, I installed via the Ubuntu Software Center after purchasing the Humble Bundle. I have not tried the other games yet.

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• ia32-libs will not install due to dependency problems

  - by P-I H

  When I upgraded to 12.04 all the 32bit libraries was removed. When I used Synaptic to upgrade, Synaptic installed all the 32bit libraries. When I later used apt-get to install a ppa, I was told to use autoremove to remove all the 32bit libraries, which I did. After this Synaptic wanted to install the libraries again, but now I marked ia32-libs forinstead. The installation works fine, but I am not able to install Skype as Skype depeneds on ia32-libs. When I try to install ia32-libs, I get this error printout ia32-libs: Depends: ia32-libs-multiarch

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• Conky: Possible to automatically display the correct days of the week?

  - by begtognen

  I'd like to tweak my Conky so it automatically displays the days of the week correctly. So for example, if TODAY were Tuesday, it would look like this: Tuesday Wednesday Thursday Friday [etc.] And then tomorrow, automatically, it would look like this: Wednesday Thursday Friday [etc.] I know I can get it to display today's date like this: ${time %A} But how do I get it to display tomorrow's date? Thanks so much for any help/suggestions.

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• SSH Lost Terminal Colors

  - by memecs

  I have to computers with exactly the same configuration (same PS1 etc...). When I ssh from A to B the terminal correctly displays PS1 and file type colors (i.e. blue directories, green executables etc.) But when I ssh from B to A PS1 is set to default and colors disappear. Furthermore, I created public keys to ssh without password from A to B and vice-versa. It works correctly from A to B but it doesn't work from B to A, again I repeated the exact same procedure on both pc: On Host A ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub address.to.host.B On Host B ssh-keygen ssh-copy-id -i ~/.ssh/id_rsa.pub address.to.host.A What could be the problem?

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• Lost power during upgrade, how do I recover?

  - by Ryan McClure

  I was attempting to update my 11.10 install to 12.04beta. During the install step, I accidentally lost power to my laptop (the power cable came unplugged) and it shut down. Whenever I go to boot now, I can select my install via Grub and it loads up to where the sign-in should happen, but I get a display that looks like what you see as soon as you shut down. It looks like it locks after checking for the battery. Is there anyway, with or without Live media, to restore my machine's install/update to 12.04 but still keep my settings/applications/files?

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• How do I download a corrupted package again?

  - by user64720

  Ubuntu 12.04 can't install Firefox 13 update, because the package is corrupted. While attempting to install, returns this error (I translated it from my language to English). /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb W: Waited for dpkg --assert-multi-arch but was not there - dpkgGo (10: There are no "child" processes). I can tell that the package at /var/cache/apt/archives/firefox_13.0+build1-0ubuntu0.12.04.1_i386.deb is corrupted, but even as admin, I can't delete it in order to be downloaded again. How should I proceed? EDIT: There was a single package causing this conflict, please report here to understand all the situation: Why can't I install from software center?

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• Monitor not recognised after apt-get upgrade on 11.10 - maximum 1024x768 resolution

  - by Josh

  I did an apt-get upgrade through update manager on 11.10. After restarting my VGA monitor is no longer recognised and I can only get a maximum of 1024x768 on a 1440x900 monitor. I can't find xorg.conf so I am pretty lost! xrandr output: Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.0* 800x600 60.3 56.2 848x480 60.0 640x480 59.9 DVI-0 disconnected (normal left inverted right x axis y axis) S-video disconnected (normal left inverted right x axis y axis)

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• Failed to unmount partitions

  - by msknapp

  I'm trying to install ubuntu from a pen drive. I have windows 7 installed already and want to keep that installation. I have a 3TB drive that has one 2TB partition on it, so the last 1TB is completely unused, which is where I want to install ubuntu. I started ubuntu in "try ubuntu" mode and then opened gparted, and then deleted the unused partition for the last third of my drive, then tried to install ubuntu. During the install, it asked me if I wanted to unmount the drives I already have The installer has detected that the following disks have mounted partitions: /dev/sda, /dev/sdb Do you want the installer to try to unmount the partitions on these disks before continuing? If you leave them mounted, you will not be able to create, delete, or resize partitions on these disks, but you may be able to install to existing partitions there. No, Yes I said no because I don't want to lose my windows 7 installation, nor any of that data. I wonder, if I had said yes above, would I have lost all the data on those drives? Anyways, I hit no and continued. I chose to install ubuntu alongside windows 7, and hit continue. A few minutes passed when this popup appeared: Failed to unmount partitions The installer needs to commit changes to partition tables, but cannot do so because the partitions on the following mount points could not be unmounted: /media/ubuntu/Three\ Terabyte Drive Terabyte\ DriveDrive Please close any applications using these mount points. Would you like the installer to try to unmount these partitions again? Go Back, Continue Why is this not working? What am I supposed to do? ========== Update: I went ahead and said yes, it can unmount those partitions. It finished installing Ubuntu, but now when i start my machine it just takes me to the grub rescue prompt. Seems like it broke something. What can I do now? =============== Results of fdisk -l: Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0x00027e14 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 976771071 488282112 7 HPFS/NTFS/exFAT WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes 255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 4294967295 2147483647+ ee GPT Partition 1 does not start on physical sector boundary. Disk /dev/sdc: 16.0 GB, 16008609792 bytes 255 heads, 63 sectors/track, 1946 cylinders, total 31266816 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: 0x00000000 Device Boot Start End Blocks Id System /dev/sdc1 * 32 31266815 15633392 c W95 FAT32 (LBA) Disk /dev/sdd: 999.5 GB, 999501594624 bytes 255 heads, 63 sectors/track, 121515 cylinders, total 1952151552 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: 0x0002ae3f Device Boot Start End Blocks Id System /dev/sdd1 2048 1952151551 976074752 7 HPFS/NTFS/exFAT

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• Ubuntu 12.04 PXELINUX does not boot RHEL Kernel and Initrd

  - by utpal

  I have successfully setup PXE server on Ubuntu 12.04 with DNSMASQ for DHCP Proxy Service, TFTPD-HPA for TFTP service, NFS-KERNEL-SERVER, APACHE2 and SYSLINUX for pxelinux.0 bootloaded needed for pxe boot using the following POST: http://ubuntuforums.org/showthread.php?t=1606910 I was successfully able to pxe boot a client to a Ubuntu 12.04 LIVE CD. Next, I want to PXE boot a client to a RHEL 6.5 x64 Kernel and initrd image. I dont want to install, just boot a client so that it mounts initrd and I can get a minimal filesystem on the client. How can I do that? Please Help!!

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• Why does the BADSIG/"Untrusted sources" error recur forever?

  - by Jeff McMahan

  On at least a dozen occasions, I've spent 2-3 hours figuring out how to get Ubuntu 11.10-12.10 to either update or acquire software from software center, or both. I want to fix whatever is causing the BADSIG problem once and for all; I've wasted so much time trying to get this to work well enough that I can rely on it, but the same problem comes back after a couple weeks of normal updates and software center usage. Don't refer me to a standard posted solution on the web---whatever it is, I've used it more times than you have. The question isn't whether I can get it to work right this afternoon. I can. The question is what is causing the problem to recur regularly across 3 releases. Notice: I use this computer 4-5 hours per week and I do little on it. PDFs, Latex, FireFox, Mendeley, and that's it. I don't constantly install new software, and I don't fiddle with things unnecessarily.

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• grub2 update-grub puts wrong UUID in grub.cfg for system with separate /, /boot and /home partitions

  - by keepitsimpleengineer

  It is putting in the UUID for the boot partition and not the / (root) partition. It's grub2 (1.99-21ubuntu3.1) on Xubuntu 12.04. UPDATE: ? I ran Boot Info Script 0.60, here are results? The boot info script is too big for askubuntu, but is here. The system not booting is on /dev/sdh. The booted disk, Xubuntu 12.04, is /dev/sdb. /sdh2/etc/fstab is at line 1073. The incorrect UUIDs are at line 945 and 954. "blkid" putput is at line 318. It is putting the UUID for "boot" versus "root" in boot.cfg, line 937. I have noticed that the relationship between physical drives and names in /dev vary depending on which system is booted.

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• Is it possible to start an additional X server after the system boots in 12.04?

  - by jackweirdy

  I'd like to have 2 VT's running, one on VT7 with the standard lightdm + unity interface and another on VT8 running a custom script which will launch a virtual machine in full screen. At the moment I've tried writing an init.d script with no luck and I can't find any details on a configuration file which will allow me to start 2 servers. I suppose my ideal answer would be one which points me to a config file I can edit to start up an additional server. Edit - I forgot to mention in the text that I already know how to start another X session: I'd like this to start automatically at boot.

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• After install of kubuntu-full, no longer have access to Unity login

  - by ResidentBiscuit

  I installed Ubuntu 13.10 about a week ago. Just today I went ahead and installed kubuntu-full to get KDE and it's associated programs. I want to keep the Unity login screen though (default when you install Ubuntu). I can't seem to get this working. Doing a 'sudo dpkg-reconfigure gdm' or 'sudo dpkg-reconfigure lightdm' and choosing either one of those does not get me there. If I choose gdm, I just end up with a gnome login screen. If I pick lightdm, I end up with a KDE login screen. Doesn't seem to be an option for choosing the unity login screen (whatever it's called). Any assistance?

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• How can I use smbclient to connect to Windows shares by hostname when a firewall is enabled?

  - by skyblue

  I can't connect to file shares on Windows computers using smbclient -L //hostname when the firewall is enabled. This occurs whether I'm using ufw (which allows outgoing traffic and replies back in with the default configuration) or iptables (where I'm allowing outgoing traffic and replies back in with iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT). However, smbclient -L //ip-address works whether the firewall is enabled or not. I also tested this against a Samba server running on Ubuntu and again smbclient -L //hostname does not work when the firewall is enabled, but smbclient -L //ip-address works whether the firewall is enabled or not. For reference, here are the iptables rules I used during testing: *filter :INPUT DROP [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -d 224.0.0.251/32 -p udp -m udp --dport 5353 -j ACCEPT COMMIT

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• Is there an apt command to download a deb file to the current directory?

  - by Lekensteyn

  I am often interested in the installation triggers (postinst, postrm) or certain parts (/usr/share or /etc) of packages. Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

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• Where I can I find Zentyal ?

  - by santosamaru

  I'm using Ubuntu 10.10 Maverick. Does anyone know where I can find a version of Zentyal for it? I heard that webmin is not available any more, and I had a problem with it, so I'm trying to change the webmin to Zentyal. The problem now is that I can only find the version for Ubuntu 10.04 (Lucid). I'm having a problem with connection speed, which is why I need Zentyal to help me configure squid to cache the webpage for faster loading.

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• SD Card only mounted after a reboot

  - by evothur

  Hi everyone. I have a Kingston 2GB MicroSD and I plug it in via an inconix MicroSD Adapter to the internal card reader of my Samsung N210 Netbook with Ubuntu 10.10, but it doesn't show up. Only if I reboot the system when the card's plugged in it shows up. Why does it need a reboot for mounting? sudo fdisk -l gives the output below. But I can only see the drive when I reboot the computer while the card's plugged. Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x9a5a7990 Device Boot Start End Blocks Id System /dev/sda1 1 1959 15728640 27 Unknown Partition 1 does not end on cylinder boundary. /dev/sda2 * 1959 1972 102400 7 HPFS/NTFS /dev/sda3 1972 18992 136718750 83 Linux /dev/sda4 18992 19458 3738625 5 Extended /dev/sda5 18992 19458 3738624 82 Linux swap / Solaris Disk /dev/sdb: 1973 MB, 1973420032 bytes 60 heads, 59 sectors/track, 1088 cylinders Units = cylinders of 3540 * 512 = 1812480 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 1089 1927100+ 6 FAT16

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• MP3 files downloaded from cloud incomplete/cut off (Android app)

  - by rudefyet

  I noticed today on my phone (Droid X running Android 2.2.1) that when streaming the Ubuntu One app would skip to the next song before the previous one had finished. Looking into it, one of the mp3s downloaded from the server was only 2.5MB instead of 4.2MB as it shows on the server itself via one.ubuntu.com. It's happened with multiple tracks today (I remember it happening once the first time I used the app too but shrugged it off as a glitch). The app itself shows a star on the playlist item indicating the file was downloaded even though it was apparently cut off for some reason, perhaps lack of good cell coverage, or some sort of dropped connection. It seems like the latter may be happening and instead of showing an error or retrying it just stops and shows the download is complete.

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