[4850] X doesn't detect screen resolution properly with dual 4850s & gnome-display-properties won't start

[Nicholas Christian Langkjær Ipsen]

Jaunty Jackalope doesn't detect my screen resolution properly, and I cannot adjust it using the gnome-display-properties application. It simply never starts. I have two Radeon 4850s, and two CRT-monitors.

The screen is stretched extremely vertically, leaving the top 40% or something of my screen visible.

[ignus (crosswired)]

can you please include the following info if possible?

/etc/X11/xorg.conf
/var/log/Xorg.0.log
Paste in output of lspci -nn | grep VGA

[Nicholas Christian Langkjær Ipsen (ncli)]

seph@NCLI-MAINFRAME:~$ lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV770 [Radeon HD 4850] [1002:9442]
02:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV770 [Radeon HD 4850] [1002:9442]

[Nicholas Christian Langkjær Ipsen (ncli)]

Yes, I do have two GPUs.

[Tormod Volden (tormodvolden)]

Please also attach the output from:
 xrandr --verbose

[Tormod Volden (tormodvolden)]

Does it happen if you only have one monitor connected (or turned on)?

I am a bit surprised to see this:
(II) RADEON(0): Using hsync ranges from config file
(II) RADEON(0): Using vrefresh ranges from config file
since you don't have any ranges in your config file.

Can you please add
 Option "ModeDebug" "true"
to the Device section of xorg.conf and restart X and attach the new log?

[Nicholas Christian Langkjær Ipsen (ncli)]

I can confirm that the bug only occurs when more than one display is connected.

[Bryce Harrington (bryce)]

[Redundant to file this against xorg as well as -ati]