18.04 stuck on 640x480

[michael123]

Originally Posted by Sparxy

This worked for me:

gtf 1920 1080 60
xrandr --newmode "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync
xrandr --addmode DVI-I-1-1 "1920x1080_60.00"
xrandr --output DVI-I-1-1 --mode "1920x1080_60.00"

Use the output from gtf (after Modeline) in xrandr --newmode
Replace DVI-I-1-1 with your xrandr DisplayLink output.

Hi Sparxy, hmmm... that didn't work.

It creates a new mode, shows the resolution in the Display settings, and appears to create a 1920x1080 buffer in Gnome.

But the DisplayLink is still showing a clipped 640x480 display of the center of that larger buffer. The monitor is still 640x480.