When I connect a fullhd monitor over display port and a 4k tv over hdmi at 60Hz, then sound is like accelerated on monitor and completely absent on tv. Using my soundcard, sound it's good.
Hdmi cable is 2.0. Videocard is Radeon 7. I'm using amdgpu kernel module.
Some info about packages:
$ uname -a
Linux debian 5.2.0-2-amd64 #1 SMP Debian 5.2.9-2 (2019-08-21) x86_64 GNU/Linux
$ dpkg -s mesa-vulkan-drivers:amd64
Status: install ok installed
Maintainer: Debian X Strike Force <email@example.com>
Depends: libvulkan1, libc6 (>= 2.29), libdrm-amdgpu1 (>= 2.4.97), libdrm2 (>= 2.4.89), libelf1 (>= 0.142), libexpat1 (>= 2.0.1), libgcc1 (>= 1:3.4), libllvm9 (>= 1:9~svn298832-1~), libstdc++6 (>= 5.2), libwayland-client0 (>= 1.15.0), libx11-xcb1, libxcb-dri3-0 (>= 1.13), libxcb-present0, libxcb-randr0 (>= 1.13), libxcb-sync1, libxcb1 (>= 1.9.2), libxshmfence1, zlib1g (>= 1:1.1.4)
Description: Mesa Vulkan graphics drivers
Vulkan is a low-overhead 3D graphics and compute API. This package
includes Vulkan drivers provided by the Mesa project.
Feel free to ask for more info. I'm glad to help.
Well, just updated drivers in Windows, used sound from TV. Then reboot on Linux and problem solved. I have rebooted several times on Linux before doing this and problem persisted. Now it looks everything fine.
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