linux-kernel - [regression] drm: display arifacts when X.Org is stopped

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Date:	Sat, 27 Jun 2009 18:52:56 +0200
From:	Frans Pop <elendil@...net.nl>
To:	linux-kernel@...r.kernel.org
Cc:	Dave Airlie <airlied@...hat.com>, dri-devel@...ts.sourceforge.net
Subject: [regression] drm: display arifacts when X.Org is stopped

With 2.6.31-rc1 I'm getting fairly serious display artifacts when X.Org 
is stopped and the display switches modes. This happens when I reboot the 
system (on the switch back to VT1), but also when I just restart the X 
server from the kdm splash screen.

My text consoles use the VESA framebuffer (vga=791).
I'm not using GEM.

I've bisected this to commit: 07613ba2f464f59949266f4337b75b91eb610795
    agp: switch AGP to use page array instead of unsigned long array

    This switches AGP to use an array of pages for tracking the
    pages allocated to the GART. This should enable GEM on PAE to work
    a lot better as we can pass highmem pages to the PAT code and it will
    do the right thing with them.

    Signed-off-by: Dave Airlie <airlied@...hat.com>

System info:
HP 2510p notebook with Intel Core Duo processors; x86_64 kernel
Userland: Debian stable ("Lenny"); X.Org X Server 1.4.2; KDE 3.5
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
        GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c)
00:02.1 Display controller [0380]: Intel Corporation Mobile
        GM965/GL960 Integrated Graphics Controller [8086:2a03] (rev 0c)

Cheers,
FJP


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