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Monitor resolution
Upgrading from pi3+ plotterv1 to pi4 plotter v2.. running headless and monitor

Optimal resolution of monitor is 1360x768 60hz..

V1 finds this optimal resolution on its own, no problem.

V2 cannot find or does not look for the optimal resolution.  It is stuck on 1920x1080.  I have tried commenting out hdmi group and mode in config.txt to set the resolution, changing to 2 and 39, to no avail.  

Does plotter read the config.txt file?

How can I change the monitor resolution?

Many thanks

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