Wooowoo!! I've started to try all possible combinations of amd driver setting. And finally i managed to have back hdr autoswitch with 18.9.2. i have to set desktop at 12 bit. We will see with future drivers updates if it keep working.
As usual madshi was right.
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AMD Ry 1500x - 8GB - RX460 4GB
TV Philips 55pus6501+ Marantz 1608 avr
WIN10(1903) 4K/444RGB
Mediaportal - Mpc-hc
MADVR-D3D11/10bit
Last edited by mrmojo666; 21st September 2018 at 13:25.
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