4K HDR videos too dark on non HDR TV

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