Dear Folks,
It is trivially easy to set up three monitors with an ATI 5450 video
card. One is plugged into the VGA, the other into the DVI, and the
last into the DisplayPort connector.
Now I want the display port monitor in the middle, as it is the most
fabulous.
This is easy with xrandr:
xrandr --output DVI-0 --mode 1920x1200 --output DisplayPort-0 --mode
1920x1200 --right-of DVI-0 --output VGA-0 --mode 1600x1200 --right-of
DisplayPort-0
which works like a charm.
Now trying to write that as xorg.conf. Miserable failure. And Gnome
3 is unable to start.
So here is the xorg.conf I have tried so far:
Section "Device"
Identifier "ati-5450"
Option "Monitor-DVI-0" "left"
Option "Monitor-DisplayPort-0" "middle"
Option "Monitor-VGA-0" "right"
EndSection
Section "Monitor"
Identifier "left"
EndSection
Section "Monitor"
Identifier "middle"
Option "RightOf" "left"
EndSection
Section "Monitor"
Identifier "right"
Option "RightOf" "middle"
EndSection
and here is the output of xrandr:
$ xrandr
Screen 0: minimum 320 x 200, current 5440 x 1200, maximum 8192 x 8192
DisplayPort-0 connected 1920x1200+1920+0 (normal left inverted right x axis y
axis) 518mm x 324mm
1920x1200 60.0*+
1920x1080 60.0
1600x1200 60.0
1680x1050 60.0
1280x1024 60.0
1280x960 60.0
1024x768 60.0
800x600 60.3
640x480 60.0
720x400 70.1
DVI-0 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm
1920x1200 60.0*+
1920x1080 50.0 60.0
1600x1200 60.0
1680x1050 59.9
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1280x800 59.9
1280x720 50.0 60.0
1024x768 60.0
800x600 60.3 56.2
720x576 50.0
720x480 59.9
640x480 60.0
VGA-0 connected 1600x1200+3840+0 (normal left inverted right x axis y axis) 408mm x 306mm
1600x1200 60.0*+
1280x1024 75.0 60.0
1280x960 60.0
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 72.8 75.0 66.7 60.0
720x400 70.1
Any suggestions on how to make a working xorg.conf?
Fedora 18 x86_64:
xorg-x11-server-Xorg-1.13.3-3.fc18.x86_64
xorg-x11-drv-ati-7.0.0-0.9.20121015gitbd9e2c064.fc18.x86_64
$ xrandr --version
xrandr program version 1.4.0
Server reports RandR version 1.4
--
Nick Urbanik http://nicku.org ni...@nicku.org
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24
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