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[Bug 1518021] Re: /usr/bin/Xorg:6:sna_dri2_event_free:sna_dri2_schedule_flip:sna_dri2_schedule_swap:DRI2SwapBuffers:ProcDRI2SwapBuffers


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On 2015-11-27T00:52:27+00:00 Robert Ancell wrote:

We're getting reports of the Intel driver crashing in Ubuntu 15.10. One
user can easily reproduce this by undocking their Lenovo Thinkpad T540p.

Tracked in Ubuntu:

Stacktrace on errors.ubuntu.com:

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-

** Changed in: xserver-xorg-video-intel
       Status: Unknown => Confirmed

** Changed in: xserver-xorg-video-intel
   Importance: Unknown => Medium

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Status in xf86-video-intel:
Status in xserver-xorg-video-intel package in Ubuntu:

Bug description:
  This occurs on my shiny new Lenovo Thinkpad T540p.

  I have my laptop docked in a Lenovo UltraDock running two external
  1080p displays.

  When I'm logged in, if I un-dock the laptop I get booted back out to
  the login screen (i.e.- X crashes). This seems to happen about 90% of
  the time, so it's reasonably easy to reproduce.

  In order to try and reproduce this, I installed the X server -dbg
  packages. However, with the -dbg packages installed I can't seem to
  reproduce this  any more (possibly a race condition?).


  The Ubuntu Error Tracker has been receiving reports about a problem
  regarding xorg-server.  This problem was most recently seen with
  version 2:1.17.2-1ubuntu9, the problem page at
  contains more details.

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