Setting maximum HDMI output framerate

[greenwal]

Thank you both for such quick replies! I will definitely give the cable extender a crack. I've found a Neet make on Amazon for about £30.

I did succeed in the end in forcing a specific range of HDMI modes on the Pi by exporting the edid.dat and editing it in Lightware Edid Editor. That completely prevents the flickering (by keeping the fps below 50fps), but the TV won't support 25fps, so it jerks sightly every second playing 25fps video at 24fps.

I may be overthinking this - will see what the extender does. Thank you both again...