On Thu, Apr 01, 2010 at 07:42:02AM -0000, Ivailo Stoyanov wrote: > Unfortunately, after my previous optimistic report, I have experienced > several random crashes (combined with wrong resolution signal to the > monitor) similar to these reported by Jerry.
Jerry has reported some crashes as well as freezes. This bug report is about a freeze rather than a crash. If what you are seeing is a crash there will be a backtrace in your Xorg.0.log (usually, or check gdm logs). Also be aware that the backtraces in your Xorg.0.log are fairly useless - instead you need to collect a full backtrace using either apport or gdb. See http://wiki.ubuntu.com/X/Backtracing for details. On the other hand, if you're seeing a freeze (graphics are frozen, but maybe the mouse works) you need to follow the directions on http://wiki.ubuntu.com/X/Troubleshooting/Freeze to collect data needed for these kinds of issues. However, I think it's pretty well known at this point that upstream's code is fairly buggered with i845, so if you have that video card, if you have a freeze it's probably not worth putting in more bug reports about it at this point. You can track the upstream bug report as it progresses, and help them with testing things. Be aware you'll probably be expected to patch and build new kernels in order to do this. Beyond that, assuming a patch doesn't come to light, the one other knob we have to fiddle with at the distro level is to blacklist KMS from this hardware. See http://wiki.ubuntu.com/X/KernelModeSetting for more info about this and how to configure it off (basically boot i915.modeset=0) so it uses UMS instead. What we need is a convincing consensus among 845 owners that UMS works better than KMS for the hardware, and then we can request the kernel team to blacklist it. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
