Additional notes: - The problem also happens when compiz is not used.
- The i810 driver was not automatically recognized, I added it to xorg.conf manually. By default, the generic vesa driver was used. - As can be seen in the Xorg.0.log, the driver fell back to 1600x1200 though 1920x1200 is configured. I have opened bug #99119 for this. -- System reboots on heavy 3D activity (i810 + Intel 82G965 + Compiz) https://launchpad.net/bugs/99114 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs