From: Eugeni Dodonov <eugeni@dodonov.net>
To: Philipp Klaus Krause <pkk@spth.de>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: Screen corruption regression from 3.0 to 3.1rc4
Date: Thu, 8 Sep 2011 10:43:40 -0300 [thread overview]
Message-ID: <CAC7LmnvWAz9WSpGdDWgFN9amw48Hh=robg00z1Wc90mSF=Mk8Q@mail.gmail.com> (raw)
In-Reply-To: <4E67A6FC.5030405@spth.de>
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On Wed, Sep 7, 2011 at 14:16, Philipp Klaus Krause <pkk@spth.de> wrote:
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>
> Am 06.09.2011 17:53, schrieb Keith Packard:
> > On Tue, 06 Sep 2011 15:11:12 +0200, Philipp Klaus Krause <pkk@spth.de>
> wrote:
> >
> >> Here's the output from git-bisect:
> >>
> >> d74362c9e45689d8d7e3d4bcf6681c4358ef4f2e is the first bad commit
> >> commit d74362c9e45689d8d7e3d4bcf6681c4358ef4f2e
> >> Author: Keith Packard <keithp@keithp.com>
> >> Date: Thu Jul 28 14:47:14 2011 -0700
> >>
> >> drm/i915: Flush other plane register writes
> >>
> >> Writes to the plane control register are buffered in the chip until
> a
> >> write to the DSPADDR (pre-965) or DSPSURF (post-965) register
> >> occurs.
> >
> > Makes me wonder if this is some interaction between page flipping and
> > frame buffer compression. Could you try turning it off with the
> > following kernel command line parameter?
> >
> > i915.i915_enable_fbc=0
> >
>
> The problem goes away with i915.i915_enable_fbc=0. I'll probably use
> that workaround until the issue is fixed.
>
Hi,
just to help me keep track of this, is there a bug on bugzilla about it?
--
Eugeni Dodonov
<http://eugeni.dodonov.net/>
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next prev parent reply other threads:[~2011-09-08 13:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-31 6:43 Screen corruption regression from 3.0 to 3.1rc4 Philipp Klaus Krause
2011-09-03 9:31 ` Philipp Klaus Krause
2011-09-03 10:43 ` Daniel Vetter
2011-09-03 10:52 ` Philipp Klaus Krause
2011-09-03 11:53 ` Daniel Vetter
2011-09-06 13:11 ` Philipp Klaus Krause
2011-09-06 15:53 ` Keith Packard
2011-09-07 17:16 ` Philipp Klaus Krause
2011-09-08 13:43 ` Eugeni Dodonov [this message]
2011-09-08 20:19 ` Philipp Klaus Krause
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