[SOLVED] Waveshare 4.3 flickering

[gkulka]

“Be specific to be terrific” was my late wife’s favorite saying.

What do you mean specifically by “flickering”? When does it occur and what does it look like?

Pi models prior to the 4B struggle with the local display even with the official Raspberry Pi 7-inch touch screen (also DSI). 

On my Pi 3B+ with the official touch screen I have to both disable GPU acceleration and downgrade the Chromium browser. Otherwise I see a curious random rapid super-positioning of the old and new screen images as I switch states between, say, playback and configure.

Waveshare is often out of date in its advice. I’d be very cautious about poking at the kernel and driver updates.

Regards,
Kent

At beginning of startup everything looks sharp and stable. Later, I see GUI like this + some ghosts. I think Hsync and Vsync is wrong[had something similar on PC].