On Sun, 26 Apr 2009 11:46:26 +0200 (CEST) "Rafael J. Wysocki" wrote: > This message has been generated automatically as a part of a report > of regressions introduced between 2.6.28 and 2.6.29. > > The following bug entry is on the current list of known regressions > introduced between 2.6.28 and 2.6.29. Please verify if it still > should be listed and let me know (either way). > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12765 > Subject : i915 VT switch with AIGLX causes X lock up > Submitter : Sitsofe Wheeler > Date : 2009-02-21 15:38 (65 days old) > First-Bad-Commit: > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=14d200c5e5bd19219d930bbb9a5a22758c8f5bec > References : > http://marc.info/?l=linux-kernel&m=123523074304955&w=4 I think we had a workaround for this (attached), but it sounds like Robert has tracked down the root cause (search for "Broken vblanks on Intel" on dri-devel@lists.sourceforge.net). Will try to get the fix into the Intel driver soon. Fortunately this doesn't seem to be biting a lot of people (at least not that I've heard); I certainly have a hard time reproducing it. -- Jesse Barnes, Intel Open Source Technology Center