I've changed my HDMI cable and discovered that part of the problem or
the problem as a whole is due to the HDMI cable that I was using. The
monitor stated that the frequency was out of range when I used a DVI
adapter so I tried playing around with various frequencies to no avail.
Finally I
I'm sorry, I made a mistake and said it doesn't list the native
resolution. This was wrong. The displays application lists the native
1920x1080 but the display goes blank when this is selected. Using a
lower setting (1280x720) works. Adding a higher setting (2048x1152)
fails for obvious reasons.
@yuval can fix the issue by creating a ~/.xprofile file with the xrandr
lines (change the lines to match your configuration):
xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120
-hsync +vsync
xrandr --addmode eDP-1 1920x1080
use "cvt 1920 1080 60" to get the --newmode
I have a similar issue with built in screen in a laptop, it has smaller
than usual pixels so the default resolution 3840x2160 (15.6", Dell
Precision M3800 PM-RD33-928) gives tiny icons and buttons and text. I
tried to change to 2048x1152 by fiddling with xrandr and by changing
text files I don't
I found a workaround.
In a terminal:
xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120
-hsync +vsync
xrandr --addmode Virtual1 1920x1080
xrandr --output Virtual1 --mode 1920x1080
And the display is set to the correct resolution and all works fine.
The problem is when
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