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Submitted by Marti Raudsepp @intgr

Assigned to Default DRI bug account

Link to original bug (#111492)

Description

Video card: ASUS Radeon R9 270
Kernel: 5.2.9-arch1-1-ARCH

I recently had some issues with the "radeon" driver and discovered that the "amdgpu" driver now has support for Southern Islands (SI) GPUs using the amdgpu.si_support=1 boot flag.

Graphics stuff works great with amdgpu so far, however, all HDMI audio outputs are marked as "(unplugged) (unavailable)" in the pavuctl utility.

Someone else's screenshot with similar issue: https://i.imgur.com/67HYPG3.png
Initially this issue seemed related to bug 107835, but Alex Deucher said that's not the case.

alsa-info.sh debug dump uploaded to: http://alsa-project.org/db/?f=bd09f9bd5cdadc129852d2f4487aec9f22d9b915



There is nothing in kernel logs to indicate issues. Grepping for relevant keywords in dmesg gives this:

[ 0.145413] Kernel command line: initrd=\initramfs-linux.img root=UUID=93067a3f-2c68-4e1a-9f3a-96cdc0221771 rw acpi_enforce_resources=lax iommu=pt radeon.si_support=0 amdgpu.si_support=1 amdgpu.dc=1 radeon.audio=1
...
[ 3.910423] input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input4
[ 3.910454] input: HDA ATI HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input5
[ 3.910480] input: HDA ATI HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input6
[ 3.910513] input: HDA ATI HDMI HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input7
[ 3.910547] input: HDA ATI HDMI HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input8
[ 3.910579] input: HDA ATI HDMI HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0/input9
...
[ 4.110170] [drm] amdgpu kernel modesetting enabled.
[ 4.110310] amdgpu 0000:09:00.0: remove_conflicting_pci_framebuffers: bar 0: 0xe0000000 -> 0xefffffff
[ 4.110312] amdgpu 0000:09:00.0: remove_conflicting_pci_framebuffers: bar 2: 0xfcf00000 -> 0xfcf3ffff
[ 4.110313] amdgpu 0000:09:00.0: vgaarb: deactivate vga console
[ 4.110485] amdgpu 0000:09:00.0: kfd not supported on this ASIC
[ 4.120150] amdgpu 0000:09:00.0: No more image in the PCI ROM
[ 4.121491] amdgpu 0000:09:00.0: VRAM: 2048M 0x000000F400000000 - 0x000000F47FFFFFFF (2048M used)
[ 4.121492] amdgpu 0000:09:00.0: GART: 1024M 0x000000FF00000000 - 0x000000FF3FFFFFFF
[ 4.121557] [drm] amdgpu: 2048M of VRAM memory ready
[ 4.121560] [drm] amdgpu: 3072M of GTT memory ready.
[ 4.123745] amdgpu 0000:09:00.0: PCIE GART of 1024M enabled (table at 0x000000F400300000).
[ 4.124929] [drm] amdgpu: dpm initialized
[ 4.125034] [drm] AMDGPU Display Connectors
[ 4.502455] fbcon: amdgpudrmfb (fb0) is primary device
[ 4.779046] amdgpu 0000:09:00.0: fb0: amdgpudrmfb frame buffer device
[ 5.237526] [drm] Initialized amdgpu 3.32.0 20150101 for 0000:09:00.0 on minor 0