2016-08-29 13:35 keltezéssel, Boszormenyi Zoltan írta:
Hi,
I have a small Kabini base mini PC that has a primary DisplayPort-0
output and a secondary HDMI-0 output.
I would like to have a configuration where only the primary is used
no matter if there's a monitor attached to the secondary.
(Don't ask, business requirements.)
No matter how I try, the secondary monitor output is the clone
of the primary.
Is there a way to disable a specific Radeon output from xorg.conf?
Here's a configuration below that should work but doesn't.
The same method works for the Intel driver: explicitly reference
the to-be-disabled ZaphodHead in a Device section, a Screen section
in turn references this Device section and then leaving the second
Screen out of the ServerLayout section give the desired result,
X leaves the unwanted output in terminal mode.
Answering to myself. Adding "Screen n" to individual Device section
does what I need. Strange that the driver doesn't pick this up from
the Screen section setup.
...
Section "Device"
Identifier "RADEON"
Driver "radeon"
BusID "PCI:0:1:0"
Screen 0
Option "AutoServerLayout" "on"
Option "ZaphodHeads" "DisplayPort-0"
Option "Monitor-DisplayPort-0" "DisplayPort-0"
Option "TearFree" "on"
Option "DRI" "3"
EndSection
Section "Device"
Identifier "RADEON1"
Driver "radeon"
BusID "PCI:0:1:0"
Screen 1
Option "AutoServerLayout" "on"
Option "ZaphodHeads" "HDMI-0"
Option "Monitor-HDMI-0" "HDMI-0"
Option "TearFree" "on"
Option "DRI" "3"
EndSection
...
Thanks in advance,
Zoltán Böszörményi
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