ubuntu-x-swat team mailing list archive

[Bryce Harrington <756624@xxxxxxxxxxxxxxxxxx>]

Hi Fabio,

I don't know what causes this bug, but have some ideas.  Can you do the
following three tests, which should hopefully narrow down how/where this
is failing?

a.  Boot into "Classic Desktop (No Effects)" and see if you can
reproduce the issue.  (If not, this might be just a max texture size
issue.)

b.  Install xdiagnose, and turn on Debugging Messages (the first
checkbox).  Reboot the system, reproduce the bug, and then run the
command 'dmesg > dmesg.txt' and attach dmesg.txt to this bug report.
(This will help give better diagnositcs.)

c.  Find another external monitor of a different model, and see if the
issue can be reproduced with that monitor as well.  (If not, then this
may be an EDID issue with the particular monitor.)

Also, a few general questions I would appreciate your answers on:

* You mentioned "gnome crashed" - how are you determining that it was
gnome that crashed?  (I'm suspecting that actually what you saw might be
a kernel gpu lockup rather than a crash).

* It looks like you upgraded on March 21st from maverick.  Is this
correct?  Did the external monitor work properly before the upgrade?
Did it ever work after the upgrade prior to when you filed this report?
(I.e., is this a recent regression or a regression between
maverick->natty?)

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/756624

Title:
  [pineviewgm] black screen attaching external monitor (x86_64)