Posts by Shazb0t

I believe HDR will not be mapped properly when played so you will get washed out colors. It will play the file, it just won't be color accurate.

Piggybacking on the OP question, is 4K 10bit SDR h.265 a supported output that will display properly?

Quote from HiassofT

Good news, RPi devs found the issue and fixed it in the latest firmware. I've just confirmed that the sample plays without artefacts with it.

Please switch to LE 9.2.1 again and run these commands to update to the latest firmware:

Code

mount -o remount,rw /flash
wget -O /flash/start.elf https://github.com/raspberrypi/firmware/raw/a6c9b6b/boot/start4x.elf
wget -O /flash/fixup.dat https://github.com/raspberrypi/firmware/raw/a6c9b6b/boot/fixup4x.dat 

After rebooting the firmware version should be May 22 2020:

Code

xbmc:~ # vcgencmd version
May 22 2020 21:12:25 
Copyright (c) 2012 Broadcom
version 4da3e1264076308eda90652cb98b553ae0586390 (clean) (release) (start_x)

Please also check with your other problematic files that showed artefacts if they are fine, too.

so long,

Hias

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I had the exact same issue and this resolved it. Thanks for posting!