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#27701
marqs
Participant

The sum of horizontal active, synclen and backporch should definitely not exceed samplerate, otherwise all kind of undefined behaviour may occur. If 2110 samplerate is the maximum the monitor can accept, then I’d recommend just using Generic mode or line4x for those boards where optimal samplerate is 423 or higher. Line5x 512×240 with 320 H.active might work with valid synclen+backporch, but even then you’d end up with width of 960 so the monitor would need to be able to stretch that properly.