ATI Graphics problem on XF86 4.3
I'm having trouble with hardware-accelerated display with an ATI Radeon 9200SE. When I first installed Debian it worked fine with fairly good 3d accelleration (although I dont know what driver was providing this). I then decided I wanted to run a dual-head display so I installed ATI's proprietary Linux drivers and now X is stuffed. When it tries to load the screen turns off and I cant even Ctrl+Alt+F1 to get a console. How can I get back the 3d drivers that come with debian - I tried reinstalling X but it appeared to have no effect.
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Make sure that the computer does not boot into XWindows automatically... if necessary, remove "gdm" or "kdm", or remove symbolic links pointing to them in runlevel dirs in /etc/rcX.d. You can check the default runlevel from /etc/inittab.
Then edit the XF86Config-4 (or xorg.conf) in /etc/X11 and remove all fglrx stuff. You should use driver "radeon", not "fglrx". It might be best to create or restore a previous XF86Config-4. Editing a config created by the ATI installer is probably not the easiest way out. Also, if you did not already do it, remove all ATI kernel modules. The installer should have a commandline switch to do an uninstall. |
If the system is unusable, use Knoppix or similar LiveCD to boot and edit your configs from there.
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start up in recovery mode runlevel=2
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