Ubuntu
xserver-xorg-video-intel package

  1. Bug #447892
  2. Comment #49

Comment 49 for bug 447892

Revision history for this message
In , Geir Ove Myhr (gomyhr) wrote :

Some updated information from downstream:
- The kernel parameter acpi=off stops the freezes. I don't know exactly what is turned off with this. At least it turns off KMS, so kalessin had to revert to the karmic -intel driver whick has UMS support to test this.
- The kernel parameter nomodeset still produces freezes, so the fact that it stops with acpi=off is not due to using UMS instead of KMS.

We have several 855GM freeze bug reports in Launchpad (https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bugs?field.tag=855gm%20freeze&field.tags_combinator=ALL) and many af them have batchbuffer dumps attached. A few of them have also been reported here already.