On Oct 3, 2011 3:44 AM, "Bojan Smojver" <<a href="mailto:bojan@rexursive.com">bojan@rexursive.com</a>> wrote: > > On Tue, 2011-09-27 at 16:12 +1000, Bojan Smojver wrote: > > This problem is covered by various bugs, one of them being: > > > > <a href="https://bugzilla.kernel.org/show_bug.cgi?id=37142">https://bugzilla.kernel.org/show_bug.cgi?id=37142</a> > > > > At some point there was a "solution" to essentially the same bug (I > > believe <a href="http://bugzilla.kernel.org/show_bug.cgi?id=13811">http://bugzilla.kernel.org/show_bug.cgi?id=13811</a>), but the > > problem quickly resurfaced. > > > > There are also similar bugs in the Free Desktop bug database. For > > instance: > > > > <a href="https://bugs.freedesktop.org/show_bug.cgi?id=40241">https://bugs.freedesktop.org/show_bug.cgi?id=40241</a> > > > > Does anyone have any idea what's causing this? Or better, how to fix it? > > I can confirm that as of kernel 3.1.0-rc7 this is still a problem. > > OK, given that nobody knows what the cause/fix is for this, can anyone > confirm that they can reproduce this on their system with Intel > graphics? > > For me, this occurs after several hibernate/thaw cycles on my ThinkPad > T510 when KMS is in use. > Hi, I was investigating the issue for a couple of weeks, but I was unable to reproduce it on any of my machines. Does it only happens only on this thinkpad, or you can reproduce it consistently on other machines as well?