Hi! Between commits dcd68326d29b and 7ddb58cb0eca, was broken play sound via the DisplayPort and HDMI. When selected DisplayPort or HDMI in a gnome control center instead of sound in speakers in the kernel log pops errors:

[ 69.228324] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00000 flags=0x0000] [ 69.228672] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00180 flags=0x0000] [ 69.229321] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00280 flags=0x0000] [ 69.229988] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00380 flags=0x0000] [ 69.230653] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00480 flags=0x0000] [ 69.231320] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00580 flags=0x0000] [ 69.231986] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00680 flags=0x0000] [ 69.232651] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00780 flags=0x0000] [ 69.233319] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00880 flags=0x0000] [ 69.233986] snd_hda_intel 0000:0b:00.1: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x001b address=0x1b7c00980 flags=0x0000] [ 77.693031] amd_iommu_report_page_fault: 5527 callbacks suppressed

I tried to bisect the bad commit but didn't find the exact commit.

$ git bisect log git bisect start # good: [dcd68326d29b62f3039e4f4d23d3e38f24d37360] Merge tag 'devicetree-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux git bisect good dcd68326d29b62f3039e4f4d23d3e38f24d37360 # bad: [7ddb58cb0ecae8e8b6181d736a87667cc9ab8389] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux git bisect bad 7ddb58cb0ecae8e8b6181d736a87667cc9ab8389 # bad: [2219b0ceefe835b92a8a74a73fe964aa052742a2] Merge tag 'soc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc git bisect bad 2219b0ceefe835b92a8a74a73fe964aa052742a2 # good: [2003c44e28ac9759200a78dda20c5f695949e3f4] ASoC: cs42l42: Prevent NULL pointer deref in interrupt handler git bisect good 2003c44e28ac9759200a78dda20c5f695949e3f4 # bad: [ff0700f03609b9f0defacd4ce96d9519d721e0a2] Merge tag 'sound-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound git bisect bad ff0700f03609b9f0defacd4ce96d9519d721e0a2 # good: [956ac4f1f53c58f87f38fd79d4c87e9146245c09] Merge series "ASoC: Sanity checks and soc-topology updates" from Cezary Rojewski cezary.rojewski@intel.com: git bisect good 956ac4f1f53c58f87f38fd79d4c87e9146245c09 # skip: [634ec0b2906efd46f6f57977e172aa3470aca432] ALSA: firewire-motu: notify event for parameter change in register DSP model git bisect skip 634ec0b2906efd46f6f57977e172aa3470aca432 # bad: [407359d44ed33974137b9158da356d53f999dcf2] ALSA: firewire-motu: export meter information to userspace as float value git bisect bad 407359d44ed33974137b9158da356d53f999dcf2 # good: [c18c4966033e6473a472fb65fbd5a6441603fbf7] ALSA: pcm: Unify snd_pcm_delay() and snd_pcm_hwsync() git bisect good c18c4966033e6473a472fb65fbd5a6441603fbf7 # skip: [73325f60e2ed28f04032d43c2828b73776cfefd0] ALSA: memalloc: Support for non-coherent page allocation git bisect skip 73325f60e2ed28f04032d43c2828b73776cfefd0 # skip: [4c9eda8f37f9523f1d2ccbb442ce641e8c981c9f] ALSA: firewire-motu: queue event for parameter change in register DSP model git bisect skip 4c9eda8f37f9523f1d2ccbb442ce641e8c981c9f # skip: [58b62ab7025912ce1be36e3ba19d49620a0161b6] ALSA: firewire-motu: add ioctl command to read cached hardware meter git bisect skip 58b62ab7025912ce1be36e3ba19d49620a0161b6 # bad: [5aec579e08e4f2be7103ae264ac8f34883eb9273] ALSA: uapi: Fix a C++ style comment in asound.h git bisect bad 5aec579e08e4f2be7103ae264ac8f34883eb9273 # skip: [7d843c494a9b69d07bc0588124599e3f665a1496] ALSA: firewire-motu: parse messages for input parameters in register DSP model git bisect skip 7d843c494a9b69d07bc0588124599e3f665a1496 # skip: [ca15a09ccc5bd2731c5fcb667e6ea3bbbf8f5772] ALSA: firewire-motu: add ioctl command to read cached parameters in register DSP model git bisect skip ca15a09ccc5bd2731c5fcb667e6ea3bbbf8f5772 # skip: [dc36a9755a572781903d79f8437d109b72662da5] ALSA: firewire-motu: parse messages for mixer source parameters in register-DSP model git bisect skip dc36a9755a572781903d79f8437d109b72662da5 # skip: [41cc23389f5fc64bdac78b73935a44bd5abc990d] ALSA: firewire-motu: parse messages for line input parameters in register DSP model git bisect skip 41cc23389f5fc64bdac78b73935a44bd5abc990d # skip: [a25684a956468ee8bbbee44649e41e5d447e5adc] ALSA: memalloc: Support for non-contiguous page allocation git bisect skip a25684a956468ee8bbbee44649e41e5d447e5adc # skip: [6ca81d2b6305a884da441fd0281ff01afd5f8c7e] ALSA: firewire-motu: parse messages for output parameters in register DSP model git bisect skip 6ca81d2b6305a884da441fd0281ff01afd5f8c7e # skip: [90b28f3bb85c39b11daf29d473ef21a935c70ec5] ALSA: firewire-motu: add message parser for meter information in command DSP model git bisect skip 90b28f3bb85c39b11daf29d473ef21a935c70ec5 # skip: [3c05f1477e62ea5a0a8797ba6a545b1dc751fb31] ALSA: ISA: not for M68K git bisect skip 3c05f1477e62ea5a0a8797ba6a545b1dc751fb31 # skip: [2d9ea39917a4e4293bc2caea902c7059a330b611] ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type git bisect skip 2d9ea39917a4e4293bc2caea902c7059a330b611 # skip: [ce69bed5557b05dd1918556d4e90c293382155ae] ALSA: firewire-motu: parse messages for mixer output parameters in register DSP model git bisect skip ce69bed5557b05dd1918556d4e90c293382155ae # bad: [b15706471abe916a16a38bee4434612998d869d2] ALSA: firewire: Fix C++ style comments in uapi header git bisect bad b15706471abe916a16a38bee4434612998d869d2 # skip: [bea36afa102e37d5e4d9ea519f14d1c92d512e45] ALSA: firewire-motu: add message parser to gather meter information in register DSP model git bisect skip bea36afa102e37d5e4d9ea519f14d1c92d512e45 # only skipped commits left to test # possible first bad commit: [b15706471abe916a16a38bee4434612998d869d2] ALSA: firewire: Fix C++ style comments in uapi header # possible first bad commit: [2d9ea39917a4e4293bc2caea902c7059a330b611] ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type # possible first bad commit: [73325f60e2ed28f04032d43c2828b73776cfefd0] ALSA: memalloc: Support for non-coherent page allocation # possible first bad commit: [a25684a956468ee8bbbee44649e41e5d447e5adc] ALSA: memalloc: Support for non-contiguous page allocation # possible first bad commit: [3c05f1477e62ea5a0a8797ba6a545b1dc751fb31] ALSA: ISA: not for M68K # possible first bad commit: [634ec0b2906efd46f6f57977e172aa3470aca432] ALSA: firewire-motu: notify event for parameter change in register DSP model # possible first bad commit: [4c9eda8f37f9523f1d2ccbb442ce641e8c981c9f] ALSA: firewire-motu: queue event for parameter change in register DSP model # possible first bad commit: [ca15a09ccc5bd2731c5fcb667e6ea3bbbf8f5772] ALSA: firewire-motu: add ioctl command to read cached parameters in register DSP model # possible first bad commit: [7d843c494a9b69d07bc0588124599e3f665a1496] ALSA: firewire-motu: parse messages for input parameters in register DSP model # possible first bad commit: [41cc23389f5fc64bdac78b73935a44bd5abc990d] ALSA: firewire-motu: parse messages for line input parameters in register DSP model # possible first bad commit: [6ca81d2b6305a884da441fd0281ff01afd5f8c7e] ALSA: firewire-motu: parse messages for output parameters in register DSP model # possible first bad commit: [ce69bed5557b05dd1918556d4e90c293382155ae] ALSA: firewire-motu: parse messages for mixer output parameters in register DSP model # possible first bad commit: [dc36a9755a572781903d79f8437d109b72662da5] ALSA: firewire-motu: parse messages for mixer source parameters in register-DSP model # possible first bad commit: [58b62ab7025912ce1be36e3ba19d49620a0161b6] ALSA: firewire-motu: add ioctl command to read cached hardware meter # possible first bad commit: [90b28f3bb85c39b11daf29d473ef21a935c70ec5] ALSA: firewire-motu: add message parser for meter information in command DSP model # possible first bad commit: [bea36afa102e37d5e4d9ea519f14d1c92d512e45] ALSA: firewire-motu: add message parser to gather meter information in register DSP model

I hope it helps. The full kernel log is attached to this message.