我刚刚从开源 ATI 驱动程序切换到催化剂，因为我的 Linux 机器在播放 Flash 视频时出现了多次崩溃。
看起来使用 fglrx 我的系统更稳定了，但我丢失了第三个显示器并且无法再启用它。
我有 Cedar 卡：
[ 723.679] (**) fglrx(0): AMD 2D Acceleration Architecture enabled
[ 723.679] (--) fglrx(0): Chipset: "AMD Radeon HD 5450 " (Chipset = 0x68f9)
[ 723.679] (--) fglrx(0): (PciSubVendor = 0x1787, PciSubDevice = 0x2291)
[ 723.679] (==) fglrx(0): board vendor info: third party graphics adapter - NOT original AMD
具有三个输出：DisplayPort、DVI 和 VGA。xrandr：
[root@serenity ~]# xrandr
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192
DFP1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+
1680x1050 60.00
1400x1050 60.00
1600x900 60.00
1360x1024 60.00
1280x1024 75.02 60.02
1440x900 60.00
1280x960 75.02 60.02
1152x864 60.00 75.00
1280x768 75.02 60.02
1280x720 75.02 60.02
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
DFP2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+
1680x1050 60.00
1400x1050 60.00
1600x900 60.00
1360x1024 60.00
1280x1024 75.02 60.02
1440x900 60.00
1280x960 75.02 60.02
1152x864 60.00 75.00
1280x768 75.02 60.02
1280x720 75.02 60.02
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
CRT1 disconnected (normal left inverted right x axis y axis)
CRT2 connected (normal left inverted right x axis y axis)
1680x1050 59.95 +
1400x1050 59.95
1600x900 59.95
1360x1024 59.95
1280x1024 75.02 60.02
1440x900 59.89
1280x960 75.02 60.02
1280x800 59.81
1152x864 59.95 75.00
1280x768 59.81
1280x720 60.00
1024x768 75.03 70.07 60.00
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 67.00 59.94
我无法使用 xrandr 启用 CRT2 显示：
[zork@serenity ~]$ xrandr --output CRT2 --auto
xrandr: Configure crtc 2 failed
Catalyst 控制中心报告 CRT 显示已被禁用，并且没有启用它的选项。
我的 xorg.conf：
Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection
Section "Module"
EndSection
Section "Monitor"
Identifier "0-DFP2"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
Option "PreferredMode" "1920x1080"
Option "TargetRefresh" "60"
Option "Position" "0 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Monitor"
Identifier "0-DFP1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
Option "PreferredMode" "1920x1080"
Option "TargetRefresh" "60"
Option "Position" "1920 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Monitor"
Identifier "0-CRT2"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
Option "Disable" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
Option "Monitor-DFP2" "0-DFP2"
Option "Monitor-DFP1" "0-DFP1"
Option "Monitor-CRT2" "0-CRT2"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Virtual 3840 1920
Depth 24
EndSubSection
EndSection
我尝试将 0-CRT2 上的“Disable”设置为“false”，并添加 PreferredMode、Position 和 TargetRefresh，但无济于事。Catalyst Control Center 在以 root 身份运行时会覆盖这些更改并禁用 CRT2。
我在 Arch Linux 下使用 xorg 1.14 和 catalyst 14.4。