Good morning,
I had the same problem with hardy on my PC.
I did not have the proble with old Ubuntu releases.
I have changed the config:
Old xorg.conf:
Section "Device"
Identifier "radeondvi"
Driver "fglrx"
Option "DesktopSetup" "horizontal"
Option "OverlayOnCRTC2" "1"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "radeonvga"
Driver "fglrx"
BusID "PCI:1:0:0"
EndSection
New xorg .conf
Section "Device"
Identifier "radeondvi"
Driver "fglrx"
Option "DesktopSetup" "horizontal"
Option "OverlayOnCRTC2" "1"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "radeonvga"
Driver "fglrx"
BusID "PCI:1:0:1"
EndSection
The problem has disappeared when I set the two different PCI ids.
Unfortunately I used to have two different desktops (one per screen).
Now I have a single desktop with both screens.
I have to rtfm to reconfigure my two desktops in my xorg.conf.
See you.
--
[Hardy Alpha-5] fglrx log noise if dualhead unless ForceMonitors=nocv
https://bugs.launchpad.net/bugs/196617
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