Thanks for this info. Of the packages upgraded during that timeframe (Apr 3-4), these are the relevant X/kernel packages that got upgraded:
libdrm2 2.4.23-1ubuntu6 grub-common 1.99~rc1-8ubuntu1 xserver-xorg-video-intel 2:2.14.0-4ubuntu6 grub is probably innocent. The -intel change is adding a patch which only affects 946gz chips, so that is probably safe. The libdrm change brought in patch 100_intel_remember_named_bo.patch to fix bug #747205, however in testing we did not find it actually seemed to help. The patch changed how buffer objects are handled, which I could imagine could potentially result in a regression. But I can't say for certain that it is causing this. Are you able to reasonably easily reproduce this bug? If so, would you mind testing downgrading of libdrm to the earlier version and see if the freeze becomes unreproducible at that point? If that's the case then we can consider reverting the patch. You can get .debs of the earlier version here: https://launchpad.net/ubuntu/+source/libdrm/2.4.23-1ubuntu5/+buildjob/2332337 As a minimum you'll want libdrm-intel1, libdrm2, and libkms1. The -dbg variants may be worthwhile but I don't think will be necessary for diagnosing this problem. You can install all of the .debs from that URL if that's more convenient, they don't conflict with each other. Thanks ** Summary changed: - [gm45] Xorg freeze + [gm45] Xorg freeze - regression starting around Apr 3rd-4th, 2011 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/753977 Title: [gm45] Xorg freeze - regression starting around Apr 3rd-4th, 2011 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

