Can you attach your /etc/defaults/acpi-support config file? You might like to play with the options there and see if they have any effect. On my 945GM, I have to POST the device after resume or natsy timing is sent to the LCD (very bad for them), but otherwise there is some flexibility in setting whether the PCI config is written back, or the vbetool program is used to save and restore video state. I don't need either of these for my laptop, but it may well depend on your BIOS.
Once this bug manifests, does it always persist? There is a register dumping utility as part of the intel driver source whicih might it be useful to run before and after the problem appears for a comparison. As its DRI related though, it could possibly be that the state which is being messed about is in the DRI client, or the chip's 3D engine, so we won't see those in the normal register dump. (If necessary, I can suppy a compiled version of the dump utility, or point you where to get the sources). Also, if altering the settings in /etc/defaults/apci-support doesn't help, could you try the package at: http://www2.eng.cam.ac.uk/~pcjc2/ubuntu/xserver-xorg-video-intel_2.1.1-0ubuntu10~pcjc2_i386.deb This has some unreleased fixes, one of which relating to 3D / DRI state after resume which manifested as a texture corruption on 855 hardware. -- screen artifacts after resume with i810 driver https://bugs.launchpad.net/bugs/91966 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
