Hello,

good news folks, it works great now and only with 2 tiny patches :)

i finally find out what was wrong with my PCIE X800 XT ATI genuine
graphic card. It is quite easy and obvious if you know what the devs
really meant with dcc_monid. In my case that was more appropriate then
ddc_dvi or ddc_vga . Also dcc_monid was the solution and i finally get
something on my screen. Indeed, i needed to modify radeonfb_monitor.c
and have included some more controls to make the auto detection less
restrictive. The 1680x1050 flat panel is now recognized at its native
resolution without forcing the video output to TMDS.

But as usual there is an under achievement somewhere. Xorg stopped
working and let the patch unusable :(
Also, you need to patch radeon_accel.c as well to make dri work again.
Otherwise fifos just timed out and dri didn't initialize.

(**) RADEON(0): RADEONSaveScreen(2)
(**) RADEON(0): FIFO timed out: 1 entries, stat=0x88026101
(EE) RADEON(0): FIFO timed out, resetting engine...
(**) RADEON(0): EngineRestore (32/32)
(**) RADEON(0): FIFO timed out: 59 entries, stat=0x8802613b
(EE) RADEON(0): FIFO timed out, resetting engine...
(**) RADEON(0): EngineRestore (32/32)
(**) RADEON(0): FIFO timed out: 17 entries, stat=0x88026111
(EE) RADEON(0): FIFO timed out, resetting engine...
(**) RADEON(0): EngineRestore (32/32)
(**) RADEON(0): FIFO timed out: 3 entries, stat=0x88026103
(EE) RADEON(0): FIFO timed out, resetting engine...
(**) RADEON(0): EngineRestore (32/32)
(**) RADEON(0): FIFO timed out: 59 entries, stat=0x8802613b
(EE) RADEON(0): FIFO timed out, resetting engine...

And last but not least, you are now able to switch to the console and
Xorg back and forth :)

PS:Kofboy suggested me to change the cable for a DVI-D one. Some cables
are DVI-I(24+5) and include a VGA and a DVI-D port, other only
DVI-D(24+1). I don't have an extra cable and i'm short of money :) so i
don't have tried it. It works for kofboy. So give it a try.

I guess that will help other card owners and not only ATI X800 or X700
family one and work without itches.

Jj