Re: [Xen-devel] Problem: Pattern with vertical colored lines on

To:	Jean Guyader <jean.guyader@xxxxxxxxx>
Subject:	Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen
From:	Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxx>
Date:	Mon, 27 Sep 2010 14:06:26 +0200
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Mon, 27 Sep 2010 05:10:48 -0700
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Hi Jean,

many thanks for this hint! This saved me a lot of time searching through
the specs.

Am 24.09.2010 schrieb Jean Guyader:
> The problem we saw with that the bit 10 of the GCC (offset 0x52 on the
> PCH config space)
> wasn't set after the bios. This bit probably enable the shadow GTT
> (created with the GTT + vt-d).

Yes, the same problem here!
I found the following patch, maybe something similar would help here too?
https://patchwork.kernel.org/patch/132771

So I have to hit the bios development :-(

> The vertical stripes means GTT fault.
> 
> Jean

Many thanks!
Dietmar.

-- 
Company details: http://ts.fujitsu.com/imprint.html

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Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0