<quote who="Gwendolyn van der Linden">
> I have the same problem with 2.5 / 2.6-test kernels with my 7500
> mobility.  In my case the framebuffer does not autodetect correctly (I
> get a very distorted display), and only lower resolutions work
> properly if I hand-pick them.  The 2.4 series framebuffer works like a
> charm without any kernel arguments!  I did try to follow the
> differences in the radeon framebuffer code, but a whole bunch of
> settings and defaults have changed, and I lost my way.
>
> Anybody know more about this?  I feel I didn't get enough concrete
> debug info to report it to the appropriate list.

Did you try the vesa driver?  Enable vesa driver in kernel and add the
following for boot parameters where you can change vga= to whatever
resolution you'd like.

video=vesa:ywrap,mtrr vga=0x317

If you do enable vesa make sure you disable all radeon specific options in
kernel.

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