On Wed, May 22, 2013 at 1:24 AM, Dave Jones <davej at redhat.com> wrote: > On Wed, May 22, 2013 at 01:10:36AM +0200, Daniel Vetter wrote: > > On Wed, May 22, 2013 at 1:01 AM, Dave Jones <davej at redhat.com> wrote: > > > This is new to me as of 3.10-rc2. > > > > If this is an ironlake with a DP output it's a know issue which seems > > to pop up every once in a while. > > 00:02.0 VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller (rev 02) Hm, a pineview, so definitely now DP. I think this one is indeed new. > > Otherwise we need to take a look > > here. If so can you please boot with drm.debug=0xe, reproduce the > > issue and attach the complete dmesg? > > > > Also does 3.10-rc1 work (since you mention -rc2 specifically and there > > wasn't really a lot going into that for drm/i915). > > It had been running rc1 for the last week or so without incident. > Though I've been away, with the monitor turned off. > > Judging by the trace, this seems to be related to console blanking ? > (this is my home firewall, so spends most of its time with the screen > turned off) Yeah, the console blanking results in a kms call to disable the output pipe, but for some odd reason the hw doesn't really switch off correctly. Or our check is a bit wonky. Exercising console blanking a bit should be interesting to see whether it's racy or predictable. > I've added that debug option to my command line, I'll keep an eye on it > and try to reproduce over the next few days. Thanks, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
