[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.
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Table of Contents
DUAL MONITORS
Mirror Monitors
By default, XFCE (the WM I use) seems to do this by default.
Extend Desktop To Second Monitor
To extend the desktop to a second monitor (as opposed to mirror the desktop), you need to use xrandr to move the desk top over X number of pixels. Where X = your LEFT monitor's X resolution
- Make sure your video card's output is being 'seen' by the system and get the output names:
xrandr -q
Make note of the name of your secondary monitor.
- Move the secondary monitor over to the right
xrandr --output HDMI-0 --pos 1024x0 # to move the VGA screen 1024 pixels to the right.
EXAMPLE: Here's my machine. DVI-I-0 is my LEFT monitor and HDMI-0 is my RIGHT monitor.
[arfon@darkstar ~]$ xrandr -q 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 disconnected (normal left inverted right x axis y axis) DVI-I-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm 1920x1080 60.0*+ 1680x1050 60.0 1440x900 59.9 1280x1024 75.0 60.0 1280x960 60.0 1280x800 59.8 1280x720 60.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 56.2 640x480 75.0 72.8 59.9 HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm 1920x1080 60.0*+ 59.9 60.1 60.0 1440x480 60.1 1280x720 60.0 59.9 1024x768 75.0 70.1 60.0 800x600 75.0 60.3 720x480 59.9 60.1 640x480 75.0 59.9 59.9 DVI-I-3 disconnected (normal left inverted right x axis y axis) [arfon@darkstar ~]$ xrandr --output HDMI-0 --pos 1920x0