Bug#497209: xserver-xorg-video-radeon: Strange behaviour using dvi-port only with Radeon 9200 pro
Brice Goglin wrote:
>> I can simply switch to an tty and call xrandr there. But, i think you
>> want the output of "xrandr -display :0 -q" because the output without
>> '-q' is empty in both cases. The output ist attached.
>The chosen rate is different in these xrandr output, 59.9 when working,
>while 60.0 when not working. Maybe your monitor doesn't like 60.0.
>Can you try:
>1) plugin the VGA cable so that X works
>2) changing the rate from 59.9 to 60.0 with xrandr --rate
Quick check yesterday: X keeps running, but the screen switchs to black.
(the same black as if starting without VGA cable connected.)
Switching back to 59.9 was not possible for me, but i had only 5 minutes to
try this. What is the Correct command for this. (run on ttyN)
>That said, it looks like having the VGA output detected with preferred
>rate = 59.9 would cause the DVI chosen rate to change from 60 and 59.9.
I _think_ i have seen the monitor running a useable X with 60, but im
really not shure about this, i've seen too many different outputs of
xrandr during my tests before writing this bugreport.