I have a monitor whose native resolution is 1920x1080. I want to only use part of the monitor (eg., 960x1080):
+-----+------+-----+
| |++++++| |
| |++++++| |
| |++++++| |
| |++++++| |
| |++++++| |
+-----+------+-----+
or maybe (eg., 1600x900):
+---+------+---+
| |
| +------+ |
| |++++++| |
| |++++++| |
| +------+ |
| |
+---+------+---+
The blank space is where the monitor is black and the plus signs in the middle is where the screen is.
I have tried modifying the solution in Due to a broken monitor, I need to setup only the right half of my screen, but it always looks like this (extends to the right and bottom):
xrandr --output HDMI-1 --transform 1.5,0,-480,0,1.5,-270,0,0,1
Monitor displays
+---+------+---+
| |
| +----------|
| |++++++++++|
| |++++++++++|
| |++++++++++|
| |++++++++++|
+---+------+---+
Wanted
+---+------+---+
| |
| +------+ |
| |++++++| |
| |++++++| |
| +------+ |
| |
+---+------+---+
How can I get a reader view on monitor? It would be best if the pixels weren't scaled, but being able to choose a particular resolution and have it centered on the monitor. For example, a 1280x720 centered on monitor and not 1920x1080 scaled down and centered on monitor.
A simple xrandr -s 1600x900 changes to 1600x900 and zooms to fit the 1920x1080 monitor.
xrandr --output HDMI-1 --mode 1024x768 --panning 1024x768 --transform 1.33333333,0,-171,0,1,0,0,0,1 from https://unix.stackexchange.com/a/220388/384272 makes monitor display
+-----+------+-----+
| |++++++++++++|
| |++++++++++++|
| |++++++++++++|
| |++++++++++++|
| |++++++++++++|
+-----+------+-----+
xrandr --output HDMI-1 --set "scaling mode" "Center" gives me:
X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 32
Current serial number in output stream: 32
