Armbian 23.5 minimal with Ubuntu-Mate-Desktop installed from package. Question is also in Armbian forum and super user forum.
I'm trying to configure Xorg to ignore an unused video output that it insists on defaulting to.
I have tried editing the /etc/X11xorg.conf file but I get the impression this configuration is ignored as no/any change I make has no effect.
xrandr is telling me that an output called "None-1" is the primary and currently in use by Xorg. However this graphics device is internal to my SOC and has no external wiring so I would like that to be ignored and to use device HDMI-1-1 instead.
Here is my xorg.conf file:
Section "Device"
Identifier "DRM Graphics Acclerated"
## Use modesetting and glamor
Driver "modesetting"
Option "AccelMethod" "glamor" ### "glamor" to enable 3D acceleration, "none" to disable.
Option "DRI" "2"
Option "Dri2Vsync" "true"
Option "TripleBuffer" "True"
## End glamor configuration
EndSection
Section "Screen"
Identifier "Default Screen"
SubSection "Display"
Depth 24
EndSubSection
Monitor "Default Monitor"
EndSection
Section "Monitor"
Identifier "Default Monitor"
Option "Monitor-HDMI-1-1" "HDMI monitor"
Option "Primary"
Option "Enable" "1"
EndSection
Section "Monitor"
Identifier "Unused Monitor"
Option "Monitor-None-1" "None monitor"
Option "Ignore" "1"
EndSection
And here is the output from xrandr:
Screen 0: minimum 320 x 200, current 720 x 576, maximum 4096 x 4096
None-1 connected primary 720x576+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
720x576 60.00*+
HDMI-1-1 connected (normal left inverted right x axis y axis)
2560x1440 59.95 +
1920x1080 60.00 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1400x1050 59.95
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 72.81 66.67
Any ideas on what I'm doing wrong here and how to correctly configure xorg to use the HDMI port?