From: Chris Wilson <chris@chris-wilson.co.uk>
To: Andy Isaacson <adi@hexapodia.org>,
linux-kernel@vger.kernel.org, Eric Anholt <eric@anholt.net>,
dri-devel@lists.sourceforge.net
Subject: Re: [2.6.35-rc regression] i915: cursor corruption on Arrandale caused by 9b8c4a0b215e
Date: Sun, 06 Jun 2010 08:26:46 +0100 [thread overview]
Message-ID: <89khjo$fk2k1t@orsmga002.jf.intel.com> (raw)
In-Reply-To: <20100606022115.GA26686@hexapodia.org>
On Sat, 5 Jun 2010 19:21:15 -0700, Andy Isaacson <adi@hexapodia.org> wrote:
> My x201s (Core i7 L640 according to /proc/cpuinfo) running -rc1 exhibits
> cursor corruption when changing the cursor image (such as when moving
> out of xterm onto the desktop). Bisection pointed to 9b8c4a0b215e and
> reverting that on top of 03cd373981 fixed the problem. I'm running
> fvwm2 with xterm as my primary X client; the driver is
>
> xserver-xorg-video-intel 2:2.9.1-4
>
> The corruption generally goes away within a second or two, and seems to
> consist of the previous cursor image interleaved with the new cursor
> image on a row-by-row basis. Some kind of cache flush issue?
Exactly; a missing move-to-GTT-domain causing the cursor data to remain in
the CPU cache.
https://bugs.freedesktop.org/show_bug.cgi?id=28335
--
Chris Wilson, Intel Open Source Technology Centre
prev parent reply other threads:[~2010-06-06 7:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-06 2:21 Andy Isaacson
2010-06-06 7:26 ` Chris Wilson [this message]
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