Hi,
my dual monitor setup more or less work until just an hour ago. I, by accident start my Windows PC, which runs on a different physical machine, but uses the same monitors through switches.
After shutdown Windows the monitors switched back to Linux, but instead of showing two different screens it looks like a copy, even though that is not activated/configured.
I have no idea what happened, as I have run Linux and Windows in parallel quite often without any issues.
Having shut down Linux and started Windows the switches seem to be working fine, as I still have a working dual monitor setup there.
I will gladly provide any information that is need, but my very basic knowledge is at his ends.
I of course have found some solutions on this forum, which seem to be to complex for something that already worked without issues (like making a virtual Desktop).
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.00*+ 59.94 50.00 60.05 60.00 50.04
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
Best,
Edward