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Thread: Unity freeze and GPU lockup

  1. #1
    Join Date
    May 2012
    Beans
    14

    Unity freeze and GPU lockup

    Every couple of days, the Unity (Ubuntu 12.10) on my laptop (DELL Latitude 6510) freezes. I cannot get any response from the desktop. If I switch to a text terminal (Ctrl-Alt-F1) and switch back (Ctrl-Alt-F7), the desktop unfreezes but the Unity launcher, the top panel, and the title bars of the windows all disappear. Logging out (with Ctrl-Alt-Delete) does not solve the problem; a restart is needed. All the logged-in users are affected by this.

    From the apport error messages I get, it looks like it is related to a GPU lockup and the package xserver-xorg-video-intel is implicated.

    Does anyone have any ideas that can help with my problem?

    Please let me know if I can provide more information that will be useful in diagnosis.

    Thanks.
    tuuk

  2. #2
    Join Date
    May 2006
    Location
    Boston
    Beans
    1,909
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Unity freeze and GPU lockup

    Quote Originally Posted by tuuk View Post
    Every couple of days, the Unity (Ubuntu 12.10) on my laptop (DELL Latitude 6510) freezes. I cannot get any response from the desktop. If I switch to a text terminal (Ctrl-Alt-F1) and switch back (Ctrl-Alt-F7), the desktop unfreezes but the Unity launcher, the top panel, and the title bars of the windows all disappear. Logging out (with Ctrl-Alt-Delete) does not solve the problem; a restart is needed. All the logged-in users are affected by this.

    From the apport error messages I get, it looks like it is related to a GPU lockup and the package xserver-xorg-video-intel is implicated.

    Does anyone have any ideas that can help with my problem?

    Please let me know if I can provide more information that will be useful in diagnosis.

    Thanks.
    tuuk
    if the freeze happens again login into the console and save the logs into a file
    Code:
     dmesg >> ~/dmesg.txt
    less .xsession-errors > ~/xerrors.txt
    and post here the files.

    or provides us the dmesg (with the time the freeze happened) and the .xsession-errors.old
    Last edited by fdrake; January 6th, 2013 at 08:45 AM.

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  3. #3
    Join Date
    May 2012
    Beans
    14

    Re: Unity freeze and GPU lockup

    Thanks fdrake. Attached are the logs as you asked. I hope it helps. It seems like there are some clues in there, but they do not mean much to me.

    I am looking forward to hearing more.

    Best,
    tuuk
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