Hi everyone,
when I tried the new evdi release (1.6.2) today I played around with different resolutions and worked out a workaround for the distortion problem.
My solution is to run the USB monitor at a slightly lower resolution than intended by the specification. I use 1360x768 instead of 1366x768. On my device, this does not lead to a blurred image, the screen works just fine then.
I wrote the following shell script to set up the custom resolution (1360x768). Please adjust the variables in ll. 5-7 to match the correct RandR output (run xrandr without any parameters to find it) and the desired resoultion.
Code:
#!/bin/bash
# Adjust these parameters to your needs.
# These worked for me (AOC E1659Fwu)
OUTPUT="DVI-I-1-1"
HORIZONTAL_RES="1360"
VERTICAL_RES="768"
MODELINE="$(cvt ${HORIZONTAL_RES} ${VERTICAL_RES} | tail -n 1 | awk '{for (i=3; i<=NF; i++) print $i}')"
MODELINE_NAME=$(echo ${MODELINE} | awk '{print $1}' | sed -e 's/^"//' -e 's/"$//')
echo "Modeline:"
echo ${MODELINE_NAME} ${MODELINE}
echo
echo "[*] xrandr --newmode"
xrandr -d :0 --newmode ${MODELINE_NAME} ${MODELINE}
echo "[*] xrandr --addmode (${OUTPUT})"
xrandr -d :0 --addmode "${OUTPUT}" ${MODELINE_NAME}
echo "[*] Set new resolution"
xrandr -d :0 --output "${OUTPUT}" --mode ${MODELINE_NAME}
I'm still interested in any advice to stop my cursor from
flickering on non-DisplayLink screens.
— Jan