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Thread: Resolution stuck at 1024x768 after Natty upgrade

  1. #1
    Join Date
    Oct 2007
    Beans
    41

    [RESOLVED] Resolution stuck at 1024x768 after Natty upgrade

    I performed an upgrade from 10.something, whichever is the "m" version to Natty via the command line on an HP Compaq dc5700. After the install and reboot I saw an error about the video card not being compatible with Unity and dumping me to 1024x768.

    There is no xorg.conf on the system and I cannot seem to get into single user mode to try and configure one because grub does not appear.


    [10:30:40 root@becameship rc5.d]# lspci
    00:00.0 Host bridge: Intel Corporation 82Q963/Q965 Memory Controller Hub (rev 02)
    00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02)
    00:02.1 Display controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02)

    I am at a loss here.
    Last edited by gdanko; June 23rd, 2011 at 01:47 PM.

  2. #2
    Join Date
    Oct 2010
    Location
    Pikes Peak
    Beans
    1,175
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Resolution stuck at 1024x768 after Natty upgrade

    On this page you'll see a command you can run that will tell you if you can run Unity and if not, why.
    https://wiki.ubuntu.com/Demystifying...reRequirements
    Code:
    /usr/lib/nux/unity_support_test -p
    Please see this and more in this thread, starting with post 1.
    http://ubuntuforums.org/showthread.php?t=1743535
    Intel i915GM
    There is a known bug with this chipset and Natty. Some of the workarounds include using "i915modeset=0" and some "i815modeset=1" in the kernel boot line and going to /etc/default/grub to
    Quote:
    Andy Whitcroft wrote on 2010-12-02 as part of Launchpad Bug https://bugs.launchpad.net/ubuntu/+s...x/+bug/683775:

    As a work-around we can turn this off by adding the line below to /etc/default/grub and running update-grub:
    GRUB_GFXPAYLOAD_LINUX=text
    There is also an upstream Debian Bug with this driver that says if you try to use a "vga=xxx" switch on a Linux 2.6.x kernel and this driver, you will get a black screen. It further says if you use anything besides the i915's driver's internal framebuffers, it will get a black screen. So-- the "i915modeset=0" also has to be set in the kernel boot line to turn off KMS.
    Jim
    Toshiba Satellite L505-S6946
    Precise, Fedora, Kororaa, Bodhi

  3. #3
    Join Date
    Oct 2007
    Beans
    41

    [RESOLVED] Resolution stuck at 1024x768 after Natty upgrade

    Quote Originally Posted by Blasphemist View Post
    On this page you'll see a command you can run that will tell you if you can run Unity and if not, why.
    https://wiki.ubuntu.com/Demystifying...reRequirements
    Code:
    /usr/lib/nux/unity_support_test -p
    Please see this and more in this thread, starting with post 1.
    http://ubuntuforums.org/showthread.php?t=1743535
    That command did not exist on my Natty install for some reason.

    Anyway, there was no xorg.conf so I created one based on the hardware I have and I seem to be up and running now, back at 1920x1200.

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