Lockups

[Chris]

On Tue, 2015-01-13 at 20:16 -0600, Chris wrote:
> On Wed, 2015-01-14 at 00:03 +0000, sktsee wrote:
> > On Mon, 12 Jan 2015 20:27:22 -0600, Chris wrote:
> > 
> > > In regards to my previous post about booting another kernel I noticed in
> > > my syslog snip from 7-8pm this popped up again:
> > > 
> > > Jan 12 19:43:52 localhost kernel: [11781.820024]
> > > [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render
> > > ring idle
> > > 
> > > I have no idea what this means but it's been in my syslog each time the
> > > system locks up no matter what kernel version I'm running. Can someone
> > > enlighten me?
> > > 
> > > 
> > It looks like the error is with the Intel i915 graphics (drm - direct 
> > rendering manager) on your system. 
> > 
> > Here's a couple out of many bug reports about it:
> > https://bugs.freedesktop.org/show_bug.cgi?id=75394
> > https://bugs.freedesktop.org/show_bug.cgi?id=70151
> > 
> > Even though some people report that new kernels solve the problem, many 
> > others are still wrestling with the lockups. 
> > 
> > This link from Ubuntu forums provides a possible workaround:
> > http://ubuntuforums.org/showthread.php?t=2208072
> > 
> > Poster suggests switching to a older acceleration method (from newer "sna" 
> > to older "uxa".
> > 
> > Also, if this is an upgraded machine, you may want to verify that the 
> > installed versions of the xorg packages are correct.
> > 
> > -- 
> > sktsee
> > 
> > 
> Thanks for the links, the first bug report I've added to as it fits
> exactly the same issue as I have, the 2nd is different from what I can
> see as well as the fix at Ubuntu forums. Since this happened again
> yesterday I added another comment to the first one and since the 3.14
> kernel didn't seem to fix it I went back to the newest 3.13 kernel since
> it's not from a Ubuntu PPA. Not an upgraded box, this is a totally new
> 14.04.1 LTS that I installed around October after my Mandriva box fried.
> 
> Chris
> 
If I wanted to add drm.debug=0x06 to my grub configuration would it go
into /etc/default/grub or into some file in /etc/grub.d? If the latter
which file and where if the former where in the file?

Thanks
Chris


-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11°N 97.89°W (Elev. 1092 ft)
21:54:13 up 8 min, 1 user, load average: 0.13, 0.57, 0.47
Ubuntu 14.04.1 LTS, kernel 3.14.0-031400-generic