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Date: Thu, 15 Nov 2012 00:42:19 -0800
From: Alex Zepeda <alex@inferiorhumanorgans.com>
To: Koop Mast <kwm@rainbow-runner.nl>
Subject: Re: Intel HD 2500 display corruption
Message-ID: <20121115084219.GA1384@bloaty>
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On Mon, Nov 12, 2012 at 04:44:57PM +0100, Koop Mast wrote:

> This sounds like a problem I heard about, the following patch resolved 
> that problem. Could you apply it and rebuild graphics/dri and see if 
> that helps?
> http://people.freebsd.org/~kwm/mesa-ivybridge.diff

Followup:

That patch doesn't change the corruption I was seeing in a 2D environment
(blackbox).  Going into x11-drivers/xf86-video-intel and chaning
src/i965_render.c around a bit helped.  Turns out gen7_composite_wm_state
still tries to configure too many threads.  Changing the ps_max_threads
to 42 from 86 eliminated the corruption I saw with blackbox.  But there
are still lots of artifacts with video.

- alex