[Bug 33738] PageFlip urxvt/xterm screen corruptions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=33738

--- Comment #22 from Stefan Dirsch <sndirsch at suse.de> 2011-09-19 10:29:43 PDT ---
Just bisected the fatal error issue

  "Driver failed PrepareAccess on a pinned pixmap" 

when startig xterm or switching to Linux console (xorg-server 1.6.5 with
xf86-video-ati 6.14.2). The bad commit is


commit ef9bfb262db7004bef3704e5d914687e50d3fca4
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Tue Feb 1 19:24:44 2011 -0500

    kms/pre-6xx: fix pageflipping with tiling

    Use UTS/DFS to tile/untile as appropriate for sw access on
    pre-6xx.

    Fixes:
    https://bugs.freedesktop.org/show_bug.cgi?id=33738

    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>

Setting 

  Option "ColorTiling" "off"

is usable as workaround, whereas setting

  Option "EnablePageFlip" "off"

does not help. This is with a Radeon XPRESS 200M 5975 aka RS482 (1002:5975),
so I believe still something R3xx based (KMS with kernel 3.0).

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