On Wed, 9 Feb 2011 09:53:26 -0800 Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > On Wed, 9 Feb 2011 09:50:47 -0800 > Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > > > On Wed, 09 Feb 2011 17:09:10 +0000 > > Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > > > > On Wed, 9 Feb 2011 13:52:38 +0100, Francesco Allertsen <fallertsen@xxxxxxxxx> wrote: > > > > On Wed, Feb 02, 2011 at 09:59:54AM +0000, Chris Wilson wrote: > > > > > Hmm, that was the only change I could spot between the two patches. Care > > > > > to disable that function and see what happens? [i.e. put a return before > > > > > we write anything to the ring] > > > > > > > > Ping? > > > > > > I was optimistic that we might spot the real issue... However, you appear > > > to be not alone and so I've pushed a disabling patch onto -fixes: > > > > > > commit ac66808814036b4c33dd98091b2176ae6157f1a8 > > > Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > > Date: Wed Feb 9 16:15:32 2011 +0000 > > > > > > drm/i915: Disable RC6 on Ironlake > > > > > > The automatic powersaving feature is once again causing havoc, with 100% > > > reliable hangs on boot and resume on affected machines. > > > > > > Reported-by: Francesco Allertsen <fallertsen@xxxxxxxxx> > > > Reported-by: Gui Rui <chaos.proton@xxxxxxxxx> > > > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28582 > > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > > > > > That should work its way upstream shortly. > > > > reverting the cleanup wasn't sufficient? > > > > Francesco, if you revert the cleanup patch you bisected to, what > > does /sys/kernel/debug/dri/0/i915_drpc_info report? > > In particular, I'm curious if it reports that you're in RC6, so you > might need to cat it a couple of times while gfx is idle (like from the > console or an ssh session while nothing is drawing). Oh and one more request, what does "intel_reg_read 0x111b8" return on your system? I really don't want to disable RC6; it saves way too much power. So I'd like to understand what's going on here so we can either fix your system or reliably find a way to disable it on systems where the BIOS isn't allowing it... Thanks, -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
