Crash on adding second monitor with gnome-display-properties.

[Martin Schaaf]

Binary package hint: compiz

Compiz crashes everytime I add a second monitor to the dell laptop xps m1210.
graphic card: Mobile 945GM
1st monitor resolution: 1280x800
2nd monitor resolution: 1280x1024

After enabling the second monitor compiz crashes.
The system installed is a ubuntu 10.04 with latest updates and compiz version 0.8.4

[Dave Gilbert (ubuntu-treblig)]

Hi Martin,
  At first I thought this was an instance of bug 619663 - but then I noticed that you are on Lucid and the symptoms are different.

Can you include a copy of your /var/log/Xorg.0.log from when it happened (or /var/log/Xorg.0.log.old if you just restarted after it).

1) Did you ever have this work with compiz on that machine on an earlier version?
2) Does it happen if you tell X that one monitor is above the other rather than side by side?

I ask (2) because there are some limits in the i945 hardware when it's doing a display wider than 2048 pixels, some acceleration features don't work, and I wondered if you are hitting that.

Dave

[Martin Schaaf (mascha)]

Yes you are right it only happens if the monitors are put side by side so that the virtual resolution goes to 2560. If I put the screens one ove the other so that I have a virtual resolution of 1280x 1824 the no crash happen and the 3D acceleration also works.

I use the version 2.12.902 of the intel driver from the xorg edgers repository.
I am not sure If this happened with older version because I have the compiz crash handler now on for two weeks.

[Dave Gilbert (ubuntu-treblig)]

So if I'm right and it is a hardware limitation that 3d doesn't work greater than 2048 horizontal then it
still seems bad for compiz to crash rather than something having stopped you first.

Not sure what the right package is for it; I could believe it's the monitor setting thing+xserver+compiz one of them should
stop you doing something that will break it.

Dave

[Pedro Villavicencio (pedro)]

Thanks for your bug report. Is this still an issue with the latest release of Ubuntu the Natty Narwhal? May you please check and comment back? Thanks in advance!.

[Launchpad Janitor (janitor)]

[Expired for compiz (Ubuntu) because there has been no activity for 60 days.]