[Linux-fbdev-devel] Radeon X300, radeonfb, dual head

Michel Dänzer michel at tungstengraphics.com
Wed Apr 18 06:45:31 PDT 2007

On Wed, 2007-04-18 at 14:09 +0200, Hans-Jürgen Koch wrote:
> 1.) I compiled radeonfb statically into my kernel and booted with
> video=radeonfb:1280x1024-32 at 60. This works fine, the framebuffer
> console works as expected. But the X server doesn't come up
> properly. Xorg.0.log ends like this:
> [...]
> (**) RADEON(0): RADEONSaveScreen(2)
> (**) RADEON(0): FIFO timed out: 2 entries, stat=0x80026102
> (EE) RADEON(0): FIFO timed out, resetting engine...

Please file a bug for this at http://bugs.freedesktop.org if it hasn't
been reported yet. Does this also happen if you don't enable the DRI?

> 2.) I compiled vesafb statically, radeonfb only as module. If I boot
> with vga=0x318, the framebuffer console works as expected. The
> X server starts up, Xorg.0.log looks good (except that DRI is disabled).
> But when kdm comes up, I see the same picture on both monitors. What I
> see looks like the right half of the 3360x1050 desktop (mouse can be
> moved across the left border of the screen, stops at the right border).
> Both screens are driven properly with 1680x1050. I tried several
> modifications of my xorg.conf, but never managed to get different
> images on the two monitors, they always show the same. 


>         Option          "MonitorLayout" "TMDS,TMDS"

The driver doesn't support this combination yet, and it doesn't match
your setup anyway. What happens if you comment out this option or change
it to "CRT,CRT"?

Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer

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