ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

Great work, Jerry. I actually misread your description in that I thought
you had access to a VT after the black screen even when running with the
intel driver. Great that you were able to get an Xorg.0.log anyway.

Usually when a black screen like that happens, the computer is not
completely dead, only the  keyboard and mouse. This leaves the network
interface. If you have another computer and a home network and another
computer available, you may be able to ssh in after the computer looks
otherwise dead. Since this is a LiveCD, it is a bit cumbersome but not
too hard. You have to start using recovery mode as before, and then
install the package openssh-server. You then have to create a user that
you can log in as (or simply set a (good) password for root). Test that
you can log in from the other computer before you start gdm and trigger
the bug.

You may now be able to copy files and do some debugging. If xorg
crashes, there should be a short backtrace near the end of Xorg.0.log.
In that case we would like you to get a full backtrace (see
https://wiki.ubuntu.com/X/Backtracing). If there is no backtrace this
may be a freeze (GPU lockup). In this case, we would like you to take a
GPU dump. For this you need the package intel-gpu-tools. It has a
program called intel_gpu_dump which will dump the registers of the GPU
to STDOUT, so `inter_gpu_dump > igd.txt` should give you a file to
upload here.

I'm a little worried that you can't use the VESA driver. Maybe you
should file a bug for xserver-xorg-video-vesa as well. Or there could be
an underlying problem.... Actually, I think I just include xserver-xorg-
video-vesa in this bug report for now.

** Also affects: xserver-xorg-video-vesa (Ubuntu)
   Importance: Undecided
       Status: New

-- 
[i845g] karmic CD Live black screen i840 video
https://bugs.launchpad.net/bugs/385947
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