Power-off reboot fixed the issue, so can mark this bug report as invalid
or similar.
$ vainfo
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/r600_drv_video.so
libva info: Found init function __vaDriverInit_1_17
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.17 (libva 2.12.0)
vainfo: Driver version: Mesa Gallium driver 22.3.6 for VERDE (, LLVM
15.0.6, DRM 2.50, 6.5.0-rc2+debian+tj+)
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileNone : VAEntrypointVideoProc
$ journalctl --dmesg --grep 'radeon|gpu'
Jul 21 20:13:53 sunny kernel: [drm] radeon kernel modesetting enabled.
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: vgaarb: deactivate
vga console
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: No more image in the
PCI ROM
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: VRAM: 2048M
0x0000000000000000 - 0x000000007FFFFFFF (2048M used)
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: GTT: 2048M
0x0000000080000000 - 0x00000000FFFFFFFF
Jul 21 20:13:53 sunny kernel: [drm] radeon: 2048M of VRAM memory ready
Jul 21 20:13:53 sunny kernel: [drm] radeon: 2048M of GTT memory ready.
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_pfp.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_me.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_ce.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_rlc.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_mc.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/verde_smc.bin
Jul 21 20:13:53 sunny kernel: [drm] radeon: dpm initialized
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/TAHITI_uvd.bin
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: Firmware loaded:
radeon/TAHITI_vce.bin
Jul 21 20:13:53 sunny kernel: [drm] GART: num cpu pages 524288, num gpu
pages 524288
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: WB enabled
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
0 use gpu addr 0x0000000080000c00
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
1 use gpu addr 0x0000000080000c04
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
2 use gpu addr 0x0000000080000c08
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
3 use gpu addr 0x0000000080000c0c
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
4 use gpu addr 0x0000000080000c10
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
5 use gpu addr 0x0000000000075a18
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
6 use gpu addr 0x0000000080000c18
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: fence driver on ring
7 use gpu addr 0x0000000080000c1c
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: radeon: MSI limited
to 32-bit
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: radeon: using MSI.
Jul 21 20:13:53 sunny kernel: [drm] radeon: irq initialized.
Jul 21 20:13:53 sunny kernel: [drm] Radeon Display Connectors
Jul 21 20:13:53 sunny kernel: [drm] Initialized radeon 2.50.0 20080528
for 0000:0a:00.0 on minor 0
Jul 21 20:13:53 sunny kernel: fbcon: radeondrmfb (fb0) is primary device
Jul 21 20:13:53 sunny kernel: radeon 0000:0a:00.0: [drm] fb0:
radeondrmfb frame buffer device
Jul 21 20:13:53 sunny kernel: [drm] amdgpu kernel modesetting enabled.
Jul 21 20:13:53 sunny kernel: amdgpu: Ignoring ACPI CRAT on non-APU system
Jul 21 20:13:53 sunny kernel: amdgpu: Virtual CRAT table created for CPU
Jul 21 20:13:53 sunny kernel: amdgpu: Topology: Add CPU node
