[Intel-gfx] 3.15-rc: regression in suspend

[Pavel Machek]

On Sat 2014-06-07 14:06:14, Pavel Machek wrote:
> On Thu 2014-05-15 17:31:54, Daniel Vetter wrote:
> > On Thu, May 15, 2014 at 5:29 PM, Jiri Kosina <jkosina at suse.cz> wrote:
> > >> > Note that X do work somehow after resume (I can't switch virtual
> > >> > desktops and dialog is stuck on screen, but it is not complete
> > >> > failure). I can do ctrl-alt-f1 and get to useful prompt.
> > >>
> > >> Oops. You were right. It seems it is duplicate after all.
> > >>
> > >> [drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head 00001020 tail 00000000 start 00003000
> > >
> > > Pavel, thanks a lot for testing.
> > >
> > > Adding Daniel and Chris to CC -- we have another incarnation of the bug
> > > that is being chased in 76554.
> > 
> > Someone succeeding at a bisect would be awesome ... Note that the only
> > key here is the ring init failure in dmesg.
> 
> Oh and... the machine has problems comming up after reboot (never seen
> those before 3.15). Sometimes, boot will hang with blank screen, and hard
> powerdown is needed...

Strange. It seems 3.15 with the patch reverted only boots in 30% or so
cases... And I've seen resume failure, too, so maybe I was just lucky
that it worked for a while.
									Pavel
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