Bug#362755: xorg: not setting MTRR range register for framebuffer to write-combining
Package: xorg
Version: 1:7.0.11
Severity: normal
Starting with Xorg 7.0, X server is not setting MTRR range register
for framebuffer to write-combining which means that display output is
twice slower than before (or using twice as much CPU, depending on the
view). Everything worked correctly up to and including 6.9. Setting it
manually works but it would be nice to fix it so that X server takes
care of it automatically once again. There is no interesting output in
Xorg.0.log, it's just that line that was present before and reporting
that range is set to write-combining is now missing.
-- System Information:
Debian Release: testing/unstable
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-rc1
Locale: LANG=C, LC_CTYPE=hr_HR (charmap=ISO-8859-2)
Versions of packages xorg depends on:
ii libgl1-mesa-dri 6.4.1-0.4 A free implementation of the OpenG
ii libgl1-mesa-glx [libgl1-mesa- 6.4.1-0.4 A free implementation of the OpenG
ii libglu1-mesa 6.4.1-0.4 The OpenGL utility library (GLU)
ii xbase-clients 1:7.0.0-3 miscellaneous X clients
ii xfonts-100dpi 1:1.0.0-2 100 dpi fonts for X
ii xfonts-75dpi 1:1.0.0-2 100 dpi fonts for X
ii xfonts-base 1:1.0.0-3 standard fonts for X
ii xfonts-scalable 1:1.0.0-4 scalable fonts for X
ii xkb-data 0.8-4 X Keyboard Extension (XKB) configu
ii xserver-xorg 1:7.0.11 the X.Org X server
ii xterm 210-3 X terminal emulator
ii xutils 1:7.0.0-3 X Window System utility programs
xorg recommends no packages.
-- no debconf information
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