lwc:hardware:displays

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lwc:hardware:displays [2021/08/14 07:32] – created John Harrisonlwc:hardware:displays [2026/02/19 09:27] (current) – John Harrison
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   * [[https://www.howtogeek.com/658701/tn-vs.-ips-vs.-va-whats-the-best-display-panel-technology/|TN vs IPS vs VA screens]]   * [[https://www.howtogeek.com/658701/tn-vs.-ips-vs.-va-whats-the-best-display-panel-technology/|TN vs IPS vs VA screens]]
 +
 +===== Create a virtual display in Linux =====
 +//this is useful if using something like, for example [[https://deskreen.com/lang-en|Deskreen]] to mirror a secondary display on another device when no other physical secondary display exists. [[https://github.com/augustoicaro/Immersed-Linux-Virtual-Monitors|original source]]//
 +  * Extensible Virtual Display Interface (EVDI) module: ''sudo apt install evdi-dkms''
 +  * load module: ''sudo modprobe evdi initial_device_count=4''
 +  * now if you do ''xrandr'' you'll see some virtual DVI ports available. Choose one to be your enabled port. For this example we'll choose ''DVI-I-2-1'' with format DVI-I-x-y e.g. x=2 y=1
 +  * add resolutions as you need:
 +    * existing resolution: ''xrandr --addmode DVI-I-2-1 "1920x1080"''
 +    * create a resolution. Example: 2048x1536:
 +      * ''cvt 2048 1536'' will return ''Modeline "2048x1536_60.00"  267.25  2048 2208 2424 2800  1536 1539 1543 1592 -hsync +vsync''
 +      * then do: ''xrandr --newmode 2048x1536_60.00"  267.25  2048 2208 2424 2800  1536 1539 1543 1592 -hsync +vsync''
 +  * force virtual port as connected: ''sudo sh -c "echo on > /sys/kernel/debug/dri/2/DVI-I-1/force"'' //note x=2 y=1 in this example//
 +  * From here use the standard display tools (GUI or otherwise) to set the monitor position etc.
 +    * on trixie (Debian 13.3) standard display tools didn't work. Instead: ''xrandr --output DVI-I-2-2 --mode 1920x1080 --pos 1920x0'' (or similar)
 +
 +===== Sunshine =====
 +//Sunshine can run on the host machine to show the virtual display on another machine//
 +  * install with flatpak
 +
 +===== Moonlight =====
 +  * run Moonlight on the machine which will be the secondard monitor
 +
 +
  • lwc/hardware/displays.1628944355.txt.gz
  • Last modified: 2021/08/14 07:32
  • by John Harrison