Hi @Neymar4ever
Some thoughts (but not a guarantee of improving things). Log in via SSH, and run:
sudo -s
echo 1 > /sys/module/am_vecm/parameters/hdr_mode
This will force HDR -> SDR conversion. When playing a video, hdr_mode should remain as 1.
You can also force colour space conversion type and colour range; where 0 is limited and 1 is full range.
echo 1 > /sys/module/am_vecm/parameters/force_csc_type
echo 1 > /sys/module/am_vecm/parameters/range_control,
There are a lot of saturation options too. Not sure if we need to revisit some of these defaults.
These changes are not persistent across a reboot.
Sam