ATI Radeon HD with Catalyst driver stuck mirroring screens
- by Mike Axiak
In 11.10 I replaced my aging Nvidia card with a new Radeon HD 6970 card. The single card has two DVI output ports which I've connected to two monitors. I installed Catalyst version 11.9 and I cannot get multiple monitors set up the way I want. I tried:
$ sudo amdcccle
and setting the mode to single desktop multiple monitors and whenever I do that Unity crashes and I get back to the login screen. Nothing shows up in the Xorg.*.log files for me to post here. There's only one card so I don't think xinerama would be any help here. Anyone have any ideas?
EDIT: Here's my xorg.conf file:
Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection
Section "Module"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Monitor"
Identifier "0-DFP3"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
Option "PreferredMode" "1280x1024"
Option "TargetRefresh" "60"
Option "Position" "0 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Monitor"
Identifier "0-CRT1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
Option "PreferredMode" "1280x1024"
Option "TargetRefresh" "75"
Option "Position" "0 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
Option "Monitor-DFP3" "0-DFP3"
Option "Monitor-CRT1" "0-CRT1"
BusID "PCI:5:0:0"
EndSection
Section "Device"
Identifier "amdcccle-Device[5]-1"
Driver "fglrx"
Option "Monitor-DFP3" "0-DFP3"
BusID "PCI:5:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
DefaultDepth 24
SubSection "Display"
EndSubSection
EndSection
Section "Screen"
Identifier "amdcccle-Screen[5]-1"
Device "amdcccle-Device[5]-1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection