intel 965gm driver from xorg-edgers blacks screen with Kubuntu 12.04

[HinzundKunz]

The latest update of xorg-edgers (yesterday, July 30th, around noon here in Austria) got me into problems - the screen would go black after about 15 minutes or so and would refuse to come back (switching to console wouldn't help either, suspending-resuming does not work, switching off desktop effects doesn help nor prevent the problem). I had to go to the console (CTRL-ALT-F1) blindly and hit CTRL-ALT-DEL to reboot. After three times with trying different things to solve/prevent this behaviour, I had to revert to the standard drivers in the ubuntu repository to be able to keep on working.

Steps to reproduce:
boot into kde. Work anything. use keyboard, mouse, whatever.

Expected behaviour:
works, screen does not get blacked out (or, after going into energy saving, will come back if mouse or keyboard is used).

Actual behaviour:
Screen gets black after some time (~10-15 minutes) and refuses to come back.

I'm afraid I can't help with tracking, as I had to revert to the standard drivers to be able to continue work (it's my office machine), but the report still might be helpful?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Loic Dreux (loic.dreux)]

Same thing with intel card.

[penalvch (penalvch)]

HinzundKunz, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information:
apport-collect -p xorg 1031220

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

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