It's i915.i915_enable_rc6=0 for extra added redundancy. You might also try Daniel Blueman's IRQ fix.
Jesse On Tue, 21 Jun 2011 07:57:13 +0200 (CEST) "Nicolas Kalkhof" <nkalk...@web.de> wrote: > Hi Folks, ok, I'll give it a try this evening. Just one more thing: Should I > pass enable_rc6 as a boot parameter like this: "i915.enable_rc6=0" or is it > set by echoing sysfs (/sys/module/i915/parameters/...)? regards, nico > > > -----Ursprüngliche Nachricht----- > Von: "Jesse Barnes" <jbar...@virtuousgeek.org> > Gesendet: Jun 21, 2011 2:19:29 AM > An: "Ted Phelps" <phe...@gnusto.com> > Betreff: Re: [Intel-gfx] gen6 (SNB) GPU still stalling besides latest patches > > >On Tue, 21 Jun 2011 10:01:35 +1000 > >Ted Phelps <phe...@gnusto.com> wrote: > > > >> > >> Hi Nicolas, > >> > >> Nicolas Kalkhof writes: > >> > SNB GPU still hangs frequently with kernel patches next-20110620 > >> > raising "drm:i915_hangcheck_ring_idle *ERROR* Hangcheck timer > >> > elapsed... gen6 bsd ring idle". This happens when multiple > >> > applications (mplayer decoding vaapi stream and some openGL game) > >> > running at the same time. With either one running there is no > >> > stalling. Could someone please confirm the issue? > >> > > >> > /sys/module/i915/parameters/semaphores is set to 0 > >> > xf86-video-intel compiled with --enable-sna > >> > >> I haven't tried SNA, but I've seen GPU hangs as well (SNB 2600K). I've > >> found that disabling RC6 (enable_rc6=0) seems to help. Can you see if > >> that helps? > >> > >> [Note to self: submit a bug report] > > > >Please do; and please try to confirm that your GPU hangs are really rc6 > >related. RC6 provides a huge (multiple Watt) power savings, and we > >really want it to be robust. > > > >-- > >Jesse Barnes, Intel Open Source Technology Center > > > ___________________________________________________________ > Schon gehört? WEB.DE hat einen genialen Phishing-Filter in die > Toolbar eingebaut! http://produkte.web.de/go/toolbar > -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
