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With 5.2.* kernel version amdgpu audio card (ASUS AMD Radeon RX 560 RX560-4G) does not work by hdmi/displayport. There is no any sound by displayport on my monitor.
With 4.19.*-lts kenel amdgpu audio card works normally by hdmi/displayport.
I have opened bug https://bugs.archlinux.org/task/63293?p … &pagenum=2
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If you downgrade the kernel to 5.1.Y does HDMI audio resume functioning?
Is the issue still present in linux 5.3-rc3 ( you can test using linux-mainline )
and the latest amdgpu driver ( you can test using linux-amd-staging-drm-next-git ) both from AUR ?
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With 5.1.16 kernel audio card of gpu works normally by displayport, so problem has started from 5.2.x kernel.
5.3 kernel I will try later.
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Kernel 5.2.9 fixed my problem with amd hdmi/displauport sound
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