lkml.org 
[lkml]   [2009]   [Feb]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: i915 regression in 2.6.29-rc5

* Zhang Rui <rui.zhang@intel.com> wrote:

> On Thu, 2009-02-19 at 03:33 +0800, Yinghai Lu wrote:
> > On Tue, Feb 17, 2009 at 7:24 PM, ZhangRui <rui.zhang@intel.com> wrote:
> > > Hi, all,
> > >
> > > I got an i915 failure in 2.6.29-rc5.
> > >
> > > problem description: the screen doesn't come back after suspend/resume.
> > > A workaround is to boot with "nomodesetting".
> > >
> > > I got this error message during i915 driver load time,
> > > [ 22.606749] mtrr: type mismatch for e0000000,10000000 old: write-back new: write-combining
> > > [ 22.606752] [drm] MTRR allocation failed
> > > [ 22.606753] . Graphics performance may suffer.
> >
> > CONFIG_MTRR_SANITIZER=y
> > CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
> > CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
> >
> > may help this one.
> >
> hah, it helps.
> the screen is back with this, while my previous kernel option is same
> except that CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0.

Ok, great. I think we should flip the default of
MTRR_SANITIZER_ENABLE_DEFAULT from 0 to 1 in 2.6.30,
as we now seem to a better job of sorting out MTRRs
details than X does.

Yinghai, mind sending a patch for that?

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2009-02-19 12:29    [W:0.051 / U:0.468 seconds]
©2003-2014 Jasper Spaans. Advertise on this site