Re: [gdm-list] Help! X/GDM crashes then dies while attempting to restart once per second

[Brian Cameron <brian cameron oracle com>]

Normally when GDM tries to start the Xserver over-and-over again, this
is typically because the Xserver is not starting properly.  This can
happen, for example, if your graphics card does not have a supported
driver.  I would bet that the Xorg logs in /var/log, or the logs in
/var/log/gdm might give some information about the problem.  Note error
messages in the Xorg log files start with "(EE)", so I would look for
any of those.

This forum may not be the best place to seek help on distro-specific
driver problems.  A technical help forum related to your distro would
likely be a better place to seek help.

The pulseaudio messages in your syslog are probably not related.

Brian


On 05/29/11 16:35, sarta53 wrote:
> I have a computer that running Ubuntu 10.04.2 LTS.
>
> Consistently after a couple hours the X desktop and GDM dies.  It works fine on
> my other computers but this computer is an intel 2.4 GHz, 1.5 GB.
>
> This can't be duplicated by anything specific, but I know it's not out of RAM at
> this point.  The console keyboard and mouse are inoperational, and the monitor
> display seems to be going through test patterns, which turns out to be that the
> monitor is trying to sync to video output which is switching on about once a
> second.  I can ssh into the box and see that many processes that were running
> are no longer running, for example gnome-session... and that once per second
> there is a new X process invoked with a different auth-for-gem parameter, per
> below:
>
> /usr/bin/X :0 -nr -verbose -auth /var/run/gdm/auth-for-gdm-Kynptf/database
> -nolisten tcp
>
> (one second later...)
> /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-GfBhRk/database
> -nolisten tcp
>
> (one second later...)
> /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-PribK0/database
> -nolisten tcp
>
>
> How can I troubleshoot this?
>
> Here is some info from various logfiles:
>
> # dmesg | grep agp
> [    4.345441] Linux agpgart interface v0.103
> [    4.377791] agpgart-intel 0000:00:00.0: Intel 830M Chipset
> [    4.378057] agpgart-intel 0000:00:00.0: detected 892K stolen memory
> [    4.381363] agpgart-intel 0000:00:00.0: AGP aperture is 128M @ 0xf0000000
>
> # dmesg | grep -i vga
> [    0.000000] Console: colour VGA+ 80x25
> [    0.119552] vgaarb: device added:
> PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
> [    0.119619] vgaarb: loaded
> [    4.517038] vga16fb: initializing
> [    4.517045] vga16fb: mapped to 0xc00a0000
> [    4.517268] fb0: VGA16 VGA frame buffer device
>
> # tail /var/log/messages
> May 28 17:22:22 ubuntu pulseaudio[9271]: pid.c: Stale PID file, overwriting.
> May 28 17:22:22 ubuntu pulseaudio[9271]: main.c: Unable to contact D-Bus:
> org.freedesktop.DBus.Error.NoServer: Failed to connect to socket
> /tmp/dbus-i7xEal70Ls: Connection refused
>
> # tail /var/log/Xorg.0.log
> (II) GLX: Initialized DRI2 GL provider for screen 0
> (II) intel(0): Setting screen physical size to 270 x 203
>
> Fatal server error:
> Failed to submit batchbuffer: Input/output error
>
> # tail /usr/adm/kern.log
> May 28 17:45:54 ubuntu kernel: [577246.001043] [drm:i915_gem_idle] *ERROR*
> hardware wedged
> May 28 17:45:55 ubuntu kernel: [577247.175163] [drm:i915_gem_entervt_ioctl]
> *ERROR* Reenabling wedged hardware, good luck
> May 28 17:45:55 ubuntu kernel: [577247.488009] [drm:i915_hangcheck_elapsed]
> *ERROR* Hangcheck timer elapsed... GPU hung
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