Red Hat Bugzilla – Bug 464223
ATI driver fails to initialize my dual-head setup properly
Last modified: 2008-12-17 17:18:35 EST
Created attachment 317830 [details]
The newest ATI driver breaks my dualhead RV630 setup: although the driver seems to think it initialized properly, the screens stay black:
readeonhd gets things running properly.
(Do a s/radeonhd/radeon/ in the xorg.conf I am attaching to get the one I used for testing the ati driver)
Created attachment 317831 [details]
(As a side note: the ati driver from a few week backs in rawhide used to get one screen initialized, the other one stayed black, which is better but not useful either. No idea what package version that was)
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
There have been bunch of bug fixes
Could you retest with the latest kernel
( -132 at the time of this writing )
You can get the latest kernel build here
And with the latest xorg-x11-drv-ati.
( -60 at the time of this writing )
You can get the latest xorg-x11-drv-ati build here
And report back if it either improves or fixes this issue..
I am not sure if I can post to this bug or open a new one. I too have an RV630 based card and it also doesn't work with ati (radeon) driver, but works with radeonhd driver. I have installed the latest packages:
xorg-x11-drv-ati-6.9.0-60.fc10.i386 and kernel-18.104.22.168-132.fc10.i686 but the problem still persists. I am able to switch to external screen using the following commands:
xrandr --output LVDS --off
xrandr --output DVI_0 --mode 1600x1200
xrandr -s 1600x1200
But switching back to internal laptop screen doesn't work, the commands are:
xrandr --output DVI_0 --off
xrandr --output LVDS --mode 1680x1050
xrandr -s 1680x1050
It gives me an error messages:
xrandr: cannot find crtc for output LVDS
Size 1680x1050 not found in available modes
I am attaching Xorg.0.log separately.
Created attachment 325495 [details]
Xorg log with latest versions of ati driver and kernel
This works now with the version from Rawhide. However, initialization of the screens is much faster with radeonhd than with ati.