Ubuntu
xserver-xorg-video-intel package

  1. Bug #554835
  2. Comment #38

Comment 38 for bug 554835

Revision history for this message
Jiri Trnka (jiri-trnka-79) wrote :

I also confirm this bug with the following experiences:

[Laptop, Intel 855 GM]

When I upgraded from Hardy to Lucid, laptop did not boot until I re-enabled KMS (according to https://wiki.ubuntu.com/X/Bugs/Lucidi8xxFreezes ). Everything else then worked almost fine, except it few times unexpectedly crashed (screen flashed -> hard freeze). Video worked fine with some minor problems on external monitor.

I started to use a program with 3D graphics and computer was crashing frequently when using external monitor. Then I tried to switch video driver to the older one from PPA X-retro repos. It did not help much (only video with external monitor got better), so I switched back to official Ubuntu driver. After that xv always crashes.

Now I use retro - driver (see https://edge.launchpad.net/~ubuntu-x-swat/+archive/x-retro ) with quite success. Problems with external monitor still remain (flickering with login screen, occassional crashes).

This steps I had to perform to make my laptop work under Lucid:

1. re-enable KMS ( at least to be able to boot )
2. downgrade the video driver to avoid video crashes ( it works generally better even when original driver works also)
3. Enable FrameBuffer Device in xorg.conf to avoid crashes on VT switch ( it was the same with Hardy )
4. avoid using 3D acceleration on external monitor