I used to use Ubuntu for my development environment, since I have a new workstation that I have decided to switch to Manjaro, with a KDE GUI.
When I used Gnome, I used a tool called xrandr-extend to give me the ability to use both the 4k screen of my laptop and my external 1080p screen without suffering from the usual scaling problems. It works well; I had no problems with xrandr-extend in Gnome. In Manjaro, however, I have a problem that I cannot solve.
The problem lies in the desktop on the external screen:
As you can see, three quarters of the screen are black, while the desk accommodates the last quarter of the screen.
I think it may have something to do with the fact that I am compressing the screen by 2 in the xrandr-extend configuration. I am doing this to achieve the optimum degree of scale to use applications on the screen. However, if this is the case, how can I maintain the level of scale that I need while the entire desktop instance on the external screen covers the entire width and length of that screen?
To my knowledge, I have filled in the configuration file correctly:
[provider:modesetting] primary = eDP-1 hdmi = HDMI-1 vga = DP-1 [provider:nouveau] primary = eDP1 hdmi = HDMI1 vga = DP1 [resolutions] primary = 3840, 2180 hdmi = 1920, 1080 vga = 1920, 1200 [scaling] hdmi = 2
The console logs generated when I execute the command to extend and scale the external screen:
[dukejm@duke-pc ~]$ xrandr-extend -n hdmi xrandr --auto xrandr --listmonitors xrandr --output eDP1 --auto --output HDMI1 --auto --panning 3840x2160+3840+0 --scale 2.0x2.0 --right-of eDP1 Monitors: 2 0: +*eDP1 3840/350x2160/190+0+0 eDP1 1: +HDMI1 1920/530x1080/300+3840+0 HDMI1 [dukejm@duke-pc ~]$ xrandr-extend -n hdmi xrandr --auto xrandr --listmonitors xrandr --output eDP1 --auto --output HDMI1 --auto --panning 3840x2160+3840+0 --scale 2.0x2.0 --right-of eDP1 Monitors: 2 0: +*eDP1 3840/350x2160/190+0+0 eDP1 1: +HDMI1 3840/530x2160/300+3840+0 HDMI1