[Milhouse]

Thanks. Tried to use custom xorg.conf. System boots, plays video using ff-mpeg-vdapau(HW) up to hevc 4k 8bit (hevc 4k 10bit plays with SW decoder, so it's not watchable at all). But there is a strange issue: no sound through HDMI

Yes, that is strange, as I thought we had other RX4x0 users with working video and HDMI sound after installing the custom config. Can any other AMD RX4x0 users confirm the current state of play with this hardware, is HDMI sound working or not?

@ipult it might be time for:

Code:

dmesg | pastebinit
lspci -v | pastebinit
cat /var/log/Xorg.0.log | pastebinit
cat /storage/.kodi/temp/kodi.log | pastebinit

Run the above commands with your onboard GPU disabled, RX4x0 enabled.