I'm using cinnamon on 18.3, on a laptop with nvidia gtx1050 card.
display is hidpi, ~4k, and even if I already found how to adapt most settings for the high resolution, to avoid microscopic texts/icons, sometimes I really wish to run some tool on a different resolution.
Ideally it would be great to have a different "workspace" (in a broad meaning) which I could switch to, which has a 2k resolution, eg. and maybe bind some tool to run only there, or easily move it there. Common cinnamon workspaces cannot change resolution independently, it seems, I found nothing about it.
IDK if and how this could be possible on linux with any kind of configuration. I'm quite used to linux servers and desktops, but never had to fiddle with displays and in this I really am a newbie, and have poor knowledge.
I only found this: https://bbs.archlinux.org/viewtopic.php?id=180904
where, as I get it, it is suggested how it could be done
and it seems quite promising, but before destroying my settings I really need to get more info on this, and be sure it could really work, and how to get back if something is not working or works badly.to create a "virtual" display by adding a new mode to one of the disconnected displays listed in xrandr using
xrandr --addmode VIRTUAL1 1024x768
I then simply enabled the display like you would normally:
xrandr --output VIRTUAL1 --mode 1024x768 --left-of HDMI3
here is my current xrandr output, if it could help:
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
eDP-1-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1680x1050 59.95 59.88
1360x768 59.80 59.96
1024x768 60.04 60.00
800x600 60.00 60.32 56.25
840x525 60.01 59.88
640x480 60.00 59.94
680x384 59.80 59.96
400x300 60.32 56.34
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
Or, can nvidia tools help in this respect? I doubt.
Any suggestions, or links to relevant web pages to read, a xrandr tutorial?