Josh Triplett <josh@joshtriplett.org> (20/02/2012):
> As far as I can tell, the X server autodetection used when
> /etc/X11/xorg.conf doesn't exist also only looks for "ati", not
> "radeon". Thus, when I upgraded a lenny system to squeeze and purged
> all the X drivers other than "radeon" in the process (to avoid having to
> upgrade them), X refused to start. I had to install
> xserver-xorg-video-ati to get the X server to start again.
Self-foot-shooting?
cbrulebois@Kashyyyk:~/debian-x/driver/xserver-xorg-video-ati.git$ head -34 debian/xserver-xorg-video-radeon.NEWS
xserver-xorg-video-radeon (1:6.12.192-2) unstable; urgency=low
* Starting with this version, the radeon driver enables kernel mode setting
(KMS) by default. This comes with a framebuffer driver which enables
native resolution on the console. KMS also allows faster VT switching
and mode changes.
Enabling KMS may break X.org drivers that are not KMS-ready, for instance
radeonhd or vesa.
In case of trouble KMS can be disabled with the 'nomodeset' kernel
command line parameter, or by editing /etc/modprobe.d/radeon-kms.conf.
-- Brice Goglin <bgoglin@debian.org> Sun, 21 Mar 2010 19:46:25 +0100
xserver-xorg-video-radeon (1:6.12.2-2) unstable; urgency=low
* The standard linux kernels in Debian as of version 2.6.29-1 do not contain
the firmware necessary to allow the radeon driver to use 3D acceleration
via DRI. In addition, the driver will pay significant performance
penalties for 2D and Xvideo usage when the firmware is absent. This
firmware has been moved to the firmware-linux package in non-free, and
must be installed to use this feature.
-- David Nusinow <dnusinow@debian.org> Wed, 29 Apr 2009 21:14:53 -0400
xserver-xorg-video-ati (1:6.8.1~git20080302.a4398ac3-1) experimental; urgency=low
* The 'ati' Xorg driver module does not contain the 'r128' and 'mach64'
submodules anymore. Users of Rage or Mach boards may safely remove
the xserver-xorg-video-ati packages only if they use Driver "r128" or
"mach64" instead of "ati" in their /etc/X11/xorg.conf.
-- Brice Goglin <bgoglin@debian.org> Sun, 02 Mar 2008 13:22:03 +0100
Mraw,
KiBi.
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