Re: [pulseaudio-discuss] pulseaudio fails to start with kernel 4.11, caused by new snd_hdmi_lpe_audio module)

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Hi,

On 21-03-17 08:54, Arun Raghavan wrote:
On Tue, 21 Mar 2017, at 11:10 AM, Takashi Iwai wrote:
On Tue, 21 Mar 2017 00:09:22 +0100,
Pierre-Louis Bossart wrote:

On 3/20/17 4:52 AM, Takashi Iwai wrote:
On Mon, 20 Mar 2017 12:42:58 +0100,
Hans de Goede wrote:

Hi,

Lately I've been working on fixing various issues people
are having with baytrail / cherrytrail devices. One thing
I noticed when moving my testing / development to 4.11 is
that pulseaudio does not work (it aborts while starting)
this seemed to be caused by the new snd_hdmi_lpe_audio
module. If I blacklist that all is fine. Any idea what
is causing this ?

I noticed it once, too, but I had no time to check further.
More interestingly, PA works fine when LPE audio is the single driver
(i.e. blacklist Intel SST instead), too.  So it's more likely a bug in
PA.

What happens when you modprobe LPE audio driver after starting the
session?  If it kills PA, we can debug more easily :)

I've seen this as well, I could get either one of the two but not
both, could this be due to the fact that one set of mixers is
configured with UCM and the other driver isn't configured by UCM?

No idea, and I had still no time to check (still processing the
pile of pending mails and other bugs :).  Let me add PA guys to Cc.

Not sure if anyone here has the hardware and I haven't seen any
complaints either -- having a backtrace (or even location of the assert)
would be a good start.

Ok, this is weird. Since you were asking for more info I tried to
collect a backtrace / logs. But what is happening is that after
the snd_hdmi_lpe_audio module loads, pulse does its thing and
then exits with a message of "killed" in gdb / on the terminal
from which I started it. I don't get a chance to get a backtrace
in gdb ...  So this does feel like a kernel bug to me, normally
this sort of "killed" behavior is seen on some kernel oopses...

But dmesg is free of any oopses ?

Anyways here is a log of pulseaudio -v first without the
hdmi module and then the module gets probed. Where the log
abruptly ends is where I got the "Killed" message on the
terminal.

I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 10.0
I: [pulseaudio] main.c: Page size is 4096 bytes
I: [pulseaudio] main.c: Machine ID is ea8812c830d64c42bbac77fda93c3850.
I: [pulseaudio] main.c: Session ID is 2.
I: [pulseaudio] main.c: Using runtime directory /run/user/1000/pulse.
I: [pulseaudio] main.c: Using state directory /home/hans/.config/pulse.
I: [pulseaudio] main.c: Using modules directory /usr/lib64/pulse-10.0/modules.
I: [pulseaudio] main.c: Running in system mode: no
W: [pulseaudio] pid.c: Stale PID file, overwriting.
I: [pulseaudio] main.c: System supports high resolution timers
I: [pulseaudio] cpu-x86.c: CPU flags: CMOV MMX SSE SSE2 SSE3 SSSE3 SSE4_1 SSE4_2
I: [pulseaudio] svolume_mmx.c: Initialising MMX optimized volume functions.
I: [pulseaudio] remap_mmx.c: Initialising MMX optimized remappers.
I: [pulseaudio] svolume_sse.c: Initialising SSE2 optimized volume functions.
I: [pulseaudio] remap_sse.c: Initialising SSE2 optimized remappers.
I: [pulseaudio] sconv_sse.c: Initialising SSE2 optimized conversions.
I: [pulseaudio] svolume_orc.c: Initialising ORC optimized volume functions.
I: [pulseaudio] module-device-restore.c: Successfully opened database file '/home/hans/.config/pulse/ea8812c830d64c42bbac77fda93c3850-device-volumes'.
I: [pulseaudio] module.c: Loaded "module-device-restore" (index: #0; argument: "").
I: [pulseaudio] module-stream-restore.c: Successfully opened database file '/home/hans/.config/pulse/ea8812c830d64c42bbac77fda93c3850-stream-volumes'.
I: [pulseaudio] module.c: Loaded "module-stream-restore" (index: #1; argument: "").
I: [pulseaudio] module-card-restore.c: Successfully opened database file '/home/hans/.config/pulse/ea8812c830d64c42bbac77fda93c3850-card-database'.
I: [pulseaudio] module.c: Loaded "module-card-restore" (index: #2; argument: "").
I: [pulseaudio] module.c: Loaded "module-augment-properties" (index: #3; argument: "").
I: [pulseaudio] module.c: Loaded "module-switch-on-port-available" (index: #4; argument: "").
I: [pulseaudio] alsa-ucm.c: UCM available for card chtrt5645
I: [pulseaudio] alsa-ucm.c: Set UCM verb to HiFi
I: [pulseaudio] module-alsa-card.c: Found UCM profiles
I: [pulseaudio] alsa-ucm.c: Set ucm verb to HiFi
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_buffer_size_near() failed: Invalid argument
I: [pulseaudio] alsa-util.c: Device hw:chtrt5645 doesn't support 44100 Hz, changed to 48000 Hz.
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_buffer_size_near() failed: Invalid argument
I: [pulseaudio] alsa-util.c: Device hw:chtrt5645 doesn't support 44100 Hz, changed to 48000 Hz.
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:chtrt5645'
I: [pulseaudio] alsa-ucm.c: UCM jack Headphones has_control=0
I: [pulseaudio] alsa-ucm.c: UCM jack Speaker has_control=0
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:chtrt5645'
I: [pulseaudio] alsa-ucm.c: UCM jack Headset Mic has_control=1
I: [pulseaudio] alsa-ucm.c: UCM jack DMic has_control=0
I: [pulseaudio] alsa-ucm.c: UCM jack Mic has_control=0
I: [pulseaudio] module-card-restore.c: Restoring port latency offsets for card alsa_card.platform-cht-bsw-rt5645.
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:0'
I: [pulseaudio] card.c: Created 0 "alsa_card.platform-cht-bsw-rt5645"
I: [pulseaudio] alsa-ucm.c: Set UCM verb to HiFi
I: [pulseaudio] alsa-util.c: Cannot disable ALSA period wakeups
I: [pulseaudio] alsa-util.c: Device hw:chtrt5645 doesn't support 44100 Hz, changed to 48000 Hz.
I: [pulseaudio] alsa-util.c: ALSA period wakeups were not disabled
I: [pulseaudio] alsa-sink.c: Successfully opened device hw:chtrt5645.
I: [pulseaudio] alsa-sink.c: Selected mapping 'Headphones + Speaker' (HiFi: hw:chtrt5645: sink).
I: [pulseaudio] alsa-sink.c: Successfully enabled mmap() mode.
I: [pulseaudio] alsa-sink.c: Successfully enabled timer-based scheduling mode.
I: [pulseaudio] alsa-ucm.c: ALSA device hw:chtrt5645 roles: (null)
I: [pulseaudio] module-device-restore.c: Restoring port for sink sink:alsa_output.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__sink.
W: [pulseaudio] sink.c: Default and alternate sample rates are the same.
I: [pulseaudio] sink.c: Created sink 0 "alsa_output.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__sink" with sample spec s16le 2ch 48000Hz and channel map front-left,front-right
I: [pulseaudio] sink.c:     alsa.resolution_bits = "16"
I: [pulseaudio] sink.c:     device.api = "alsa"
I: [pulseaudio] sink.c:     device.class = "sound"
I: [pulseaudio] sink.c:     alsa.class = "generic"
I: [pulseaudio] sink.c:     alsa.subclass = "generic-mix"
I: [pulseaudio] sink.c:     alsa.name = ""
I: [pulseaudio] sink.c:     alsa.id = "1"
I: [pulseaudio] sink.c:     alsa.subdevice = "0"
I: [pulseaudio] sink.c:     alsa.subdevice_name = "subdevice #0"
I: [pulseaudio] sink.c:     alsa.device = "0"
I: [pulseaudio] sink.c:     alsa.card = "0"
I: [pulseaudio] sink.c:     alsa.card_name = "chtrt5645"
I: [pulseaudio] sink.c:     alsa.long_card_name = "chtrt5645"
I: [pulseaudio] sink.c:     alsa.driver_name = "snd_soc_sst_cht_bsw_rt5645"
I: [pulseaudio] sink.c:     device.bus_path = "platform-cht-bsw-rt5645"
I: [pulseaudio] sink.c:     sysfs.path = "/devices/pci0000:00/808622A8:00/cht-bsw-rt5645/sound/card0"
I: [pulseaudio] sink.c:     device.string = "hw:chtrt5645"
I: [pulseaudio] sink.c:     device.buffering.buffer_size = "384000"
I: [pulseaudio] sink.c:     device.buffering.fragment_size = "192000"
I: [pulseaudio] sink.c:     device.access_mode = "mmap+timer"
I: [pulseaudio] sink.c:     device.profile.name = "HiFi: hw:chtrt5645: sink"
I: [pulseaudio] sink.c:     device.profile.description = "Headphones + Speaker"
I: [pulseaudio] sink.c:     device.description = "chtrt5645 Headphones + Speaker"
I: [pulseaudio] sink.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] sink.c:     device.icon_name = "audio-card"
I: [pulseaudio] source.c: Created source 0 "alsa_output.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__sink.monitor" with sample spec s16le 2ch 48000Hz and channel map front-left,front-right
I: [pulseaudio] source.c:     device.description = "Monitor of chtrt5645 Headphones + Speaker"
I: [pulseaudio] source.c:     device.class = "monitor"
I: [pulseaudio] source.c:     alsa.card = "0"
I: [pulseaudio] source.c:     alsa.card_name = "chtrt5645"
I: [pulseaudio] source.c:     alsa.long_card_name = "chtrt5645"
I: [pulseaudio] source.c:     alsa.driver_name = "snd_soc_sst_cht_bsw_rt5645"
I: [pulseaudio] source.c:     device.bus_path = "platform-cht-bsw-rt5645"
I: [pulseaudio] source.c:     sysfs.path = "/devices/pci0000:00/808622A8:00/cht-bsw-rt5645/sound/card0"
I: [pulseaudio] source.c:     device.string = "0"
I: [pulseaudio] source.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] source.c:     device.icon_name = "audio-card"
I: [pulseaudio] alsa-sink.c: Using 2.0 fragments of size 192000 bytes (1000.00ms), buffer size is 384000 bytes (2000.00ms)
I: [pulseaudio] alsa-sink.c: Time scheduling watermark is 18.38ms
I: [alsa-sink-1] core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 5.
I: [alsa-sink-1] alsa-sink.c: Starting playback.
I: [pulseaudio] alsa-util.c: Cannot disable ALSA period wakeups
I: [pulseaudio] alsa-util.c: Device hw:chtrt5645 doesn't support 44100 Hz, changed to 48000 Hz.
I: [pulseaudio] alsa-util.c: ALSA period wakeups were not disabled
I: [pulseaudio] alsa-source.c: Successfully opened device hw:chtrt5645.
I: [pulseaudio] alsa-source.c: Selected mapping 'Headset Microphone + Internal Digital Microphones + Internal Analog Microphones' (HiFi: hw:chtrt5645: source).
I: [pulseaudio] alsa-source.c: Successfully enabled mmap() mode.
I: [pulseaudio] alsa-source.c: Successfully enabled timer-based scheduling mode.
I: [pulseaudio] alsa-ucm.c: ALSA device hw:chtrt5645 roles: (null)
W: [pulseaudio] source.c: Default and alternate sample rates are the same.
I: [pulseaudio] source.c: Created source 1 "alsa_input.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__source" with sample spec s16le 2ch 48000Hz and channel map front-left,front-right
I: [pulseaudio] source.c:     alsa.resolution_bits = "16"
I: [pulseaudio] source.c:     device.api = "alsa"
I: [pulseaudio] source.c:     device.class = "sound"
I: [pulseaudio] source.c:     alsa.class = "generic"
I: [pulseaudio] source.c:     alsa.subclass = "generic-mix"
I: [pulseaudio] source.c:     alsa.name = ""
I: [pulseaudio] source.c:     alsa.id = "3"
I: [pulseaudio] source.c:     alsa.subdevice = "0"
I: [pulseaudio] source.c:     alsa.subdevice_name = "subdevice #0"
I: [pulseaudio] source.c:     alsa.device = "0"
I: [pulseaudio] source.c:     alsa.card = "0"
I: [pulseaudio] source.c:     alsa.card_name = "chtrt5645"
I: [pulseaudio] source.c:     alsa.long_card_name = "chtrt5645"
I: [pulseaudio] source.c:     alsa.driver_name = "snd_soc_sst_cht_bsw_rt5645"
I: [pulseaudio] source.c:     device.bus_path = "platform-cht-bsw-rt5645"
I: [pulseaudio] source.c:     sysfs.path = "/devices/pci0000:00/808622A8:00/cht-bsw-rt5645/sound/card0"
I: [pulseaudio] source.c:     device.string = "hw:chtrt5645"
I: [pulseaudio] source.c:     device.buffering.buffer_size = "384000"
I: [pulseaudio] source.c:     device.buffering.fragment_size = "192000"
I: [pulseaudio] source.c:     device.access_mode = "mmap+timer"
I: [pulseaudio] source.c:     device.profile.name = "HiFi: hw:chtrt5645: source"
I: [pulseaudio] source.c:     device.profile.description = "Headset Microphone + Internal Digital Microphones + Internal Analog Microphones"
I: [pulseaudio] source.c:     device.description = "chtrt5645 Headset Microphone + Internal Digital Microphones + Internal Analog Microphones"
I: [pulseaudio] source.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] source.c:     device.icon_name = "audio-card"
I: [pulseaudio] alsa-source.c: Using 2.0 fragments of size 192000 bytes (1000.00ms), buffer size is 384000 bytes (2000.00ms)
I: [pulseaudio] alsa-source.c: Time scheduling watermark is 18.38ms
I: [alsa-source-3] core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 5.
I: [alsa-source-3] alsa-source.c: Starting capture.
I: [pulseaudio] module.c: Loaded "module-alsa-card" (index: #6; argument: "device_id="0" name="platform-cht-bsw-rt5645" card_name="alsa_card.platform-cht-bsw-rt5645" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1"").
I: [pulseaudio] module-udev-detect.c: Card /devices/pci0000:00/808622A8:00/cht-bsw-rt5645/sound/card0 (alsa_card.platform-cht-bsw-rt5645) module loaded.
I: [pulseaudio] module-udev-detect.c: Found 1 cards.
I: [pulseaudio] module.c: Loaded "module-udev-detect" (index: #5; argument: "").
I: [pulseaudio] module.c: Loaded "module-bluetooth-policy" (index: #7; argument: "").
I: [pulseaudio] module.c: Loaded "module-bluez5-discover" (index: #9; argument: "").
I: [pulseaudio] module.c: Loaded "module-bluetooth-discover" (index: #8; argument: "").
I: [pulseaudio] module.c: Loaded "module-esound-protocol-unix" (index: #10; argument: "").
I: [pulseaudio] module.c: Loaded "module-native-protocol-unix" (index: #11; argument: "").
I: [pulseaudio] module-default-device-restore.c: Restored default sink 'alsa_output.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__sink'.
I: [pulseaudio] module-default-device-restore.c: Restored default source 'alsa_input.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__source'.
I: [pulseaudio] module.c: Loaded "module-default-device-restore" (index: #12; argument: "").
I: [pulseaudio] module.c: Loaded "module-rescue-streams" (index: #13; argument: "").
I: [pulseaudio] module.c: Loaded "module-always-sink" (index: #14; argument: "").
I: [pulseaudio] module.c: Loaded "module-intended-roles" (index: #15; argument: "").
I: [pulseaudio] module.c: Loaded "module-suspend-on-idle" (index: #16; argument: "").
I: [pulseaudio] client.c: Created 0 "Login Session 2"
I: [pulseaudio] module.c: Loaded "module-systemd-login" (index: #17; argument: "").
I: [pulseaudio] module.c: Loaded "module-position-event-sounds" (index: #18; argument: "").
I: [pulseaudio] module.c: Loaded "module-role-cork" (index: #19; argument: "").
I: [pulseaudio] module.c: Loaded "module-filter-heuristics" (index: #20; argument: "").
I: [pulseaudio] module.c: Loaded "module-filter-apply" (index: #21; argument: "").
I: [pulseaudio] main.c: Daemon startup complete.
I: [pulseaudio] module-suspend-on-idle.c: Source alsa_input.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__source idle for too long, suspending ...
I: [alsa-source-3] alsa-source.c: Device suspended...
I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.platform-cht-bsw-rt5645.HiFi__hw_chtrt5645__sink idle for too long, suspending ...
I: [alsa-sink-1] alsa-sink.c: Device suspended...
I: [pulseaudio] (alsa-lib)utils.c: could not open configuration file /usr/share/alsa/ucm/Intel HDMI/DP LPE Audio/Intel HDMI/DP LPE Audio.conf
I: [pulseaudio] (alsa-lib)parser.c: error: could not parse configuration for card Intel HDMI/DP LPE Audio
I: [pulseaudio] (alsa-lib)main.c: error: failed to import Intel HDMI/DP LPE Audio use case configuration -2
I: [pulseaudio] alsa-ucm.c: UCM not available for card Intel HDMI/DP LPE Audio
I: [pulseaudio] (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: [pulseaudio] alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM front:1
I: [pulseaudio] alsa-util.c: Error opening PCM device front:1: Invalid argument
I: [pulseaudio] (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: [pulseaudio] alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM iec958:1
I: [pulseaudio] alsa-util.c: Error opening PCM device iec958:1: Invalid argument
I: [pulseaudio] alsa-util.c: Failed to set hardware parameters on plug:hw:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM front:1
I: [pulseaudio] alsa-util.c: Error opening PCM device front:1: Invalid argument
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_buffer_size_near() failed: Invalid argument
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:1'
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround21:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround21:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround40:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround40:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround41:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround41:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround50:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround50:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround51:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround51:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM surround71:1
I: [pulseaudio] alsa-util.c: Error opening PCM device surround71:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM iec958:1
I: [pulseaudio] alsa-util.c: Error opening PCM device iec958:1: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM a52:1
I: [pulseaudio] alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM a52:1
I: [pulseaudio] alsa-util.c: Error opening PCM device a52:1: No such file or directory
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dca:1
I: [pulseaudio] alsa-util.c: Error opening PCM device dca:1: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,1: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,1
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,1: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,1
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,1: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,2
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,2
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,2: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,2
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,2
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,2: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,2
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,2
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,2: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,2
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,2: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,3
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,3
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,3: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,3
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,3
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,3: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,3
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,3
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,3: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,3
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,3: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,4
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,4
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,4: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,4
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,4
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,4: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,4
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,4
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,4: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,4
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,4: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,5
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,5
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,5: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,5
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,5
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,5: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,5
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,5
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,5: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,5
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,5: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,6
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,6
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,6: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,6
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,6
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,6: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,6
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,6
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,6: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,6
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,6: No such file or directory
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,7
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,7
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,7: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,7
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,7
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,7: Invalid argument
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1,7
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM hdmi:1,7
I: [pulseaudio] alsa-util.c: Error opening PCM device hdmi:1,7: Invalid argument
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM dcahdmi:1,7
I: [pulseaudio] alsa-util.c: Error opening PCM device dcahdmi:1,7: No such file or directory
I: [pulseaudio] (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2)
I: [pulseaudio] alsa-util.c: Error opening PCM device hw:1: No such file or directory
I: [pulseaudio] module-card-restore.c: Restoring port latency offsets for card alsa_card.pci-0000_00_02.0-platform-hdmi-lpe-audio.
I: [pulseaudio] card.c: Created 1 "alsa_card.pci-0000_00_02.0-platform-hdmi-lpe-audio"
I: [pulseaudio] (alsa-lib)conf.c: Unknown parameters 1
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM front:1
I: [pulseaudio] alsa-util.c: Error opening PCM device front:1: Invalid argument
I: [pulseaudio] alsa-util.c: Trying to disable ALSA period wakeups, using timers only
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_buffer_size_near() failed: Invalid argument
I: [pulseaudio] alsa-util.c: ALSA period wakeups disabled
I: [pulseaudio] alsa-sink.c: Successfully opened device hw:1.
I: [pulseaudio] alsa-sink.c: Selected mapping 'Analog Stereo' (analog-stereo).
I: [pulseaudio] alsa-sink.c: Successfully enabled mmap() mode.
I: [pulseaudio] alsa-sink.c: Successfully enabled timer-based scheduling mode.
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'hw:1'
I: [pulseaudio] sink.c: Created sink 1 "alsa_output.pci-0000_00_02.0-platform-hdmi-lpe-audio.analog-stereo" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right
I: [pulseaudio] sink.c:     alsa.resolution_bits = "16"
I: [pulseaudio] sink.c:     device.api = "alsa"
I: [pulseaudio] sink.c:     device.class = "sound"
I: [pulseaudio] sink.c:     alsa.class = "generic"
I: [pulseaudio] sink.c:     alsa.subclass = "generic-mix"
I: [pulseaudio] sink.c:     alsa.name = "Intel HDMI/DP LPE Audio"
I: [pulseaudio] sink.c:     alsa.id = "HdmiLpeAudio"
I: [pulseaudio] sink.c:     alsa.subdevice = "0"
I: [pulseaudio] sink.c:     alsa.subdevice_name = "subdevice #0"
I: [pulseaudio] sink.c:     alsa.device = "0"
I: [pulseaudio] sink.c:     alsa.card = "1"
I: [pulseaudio] sink.c:     alsa.card_name = "Intel HDMI/DP LPE Audio"
I: [pulseaudio] sink.c:     alsa.long_card_name = "Intel HDMI/DP LPE Audio"
I: [pulseaudio] sink.c:     alsa.driver_name = "snd_hdmi_lpe_audio"
I: [pulseaudio] sink.c:     device.bus_path = "pci-0000:00:02.0-platform-hdmi-lpe-audio"
I: [pulseaudio] sink.c:     sysfs.path = "/devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card1"
I: [pulseaudio] sink.c:     device.bus = "pci"
I: [pulseaudio] sink.c:     device.vendor.id = "8086"
I: [pulseaudio] sink.c:     device.vendor.name = "Intel Corporation"
I: [pulseaudio] sink.c:     device.product.id = "22b0"
I: [pulseaudio] sink.c:     device.product.name = "Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers"
I: [pulseaudio] sink.c:     device.string = "hw:1"
I: [pulseaudio] sink.c:     device.buffering.buffer_size = "352832"
I: [pulseaudio] sink.c:     device.buffering.fragment_size = "352832"
I: [pulseaudio] sink.c:     device.access_mode = "mmap+timer"
I: [pulseaudio] sink.c:     device.profile.name = "analog-stereo"
I: [pulseaudio] sink.c:     device.profile.description = "Analog Stereo"
I: [pulseaudio] sink.c:     device.description = "Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers Analog Stereo"
I: [pulseaudio] sink.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] sink.c:     device.icon_name = "audio-card-pci"
I: [pulseaudio] source.c: Created source 2 "alsa_output.pci-0000_00_02.0-platform-hdmi-lpe-audio.analog-stereo.monitor" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right
I: [pulseaudio] source.c:     device.description = "Monitor of Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers Analog Stereo"
I: [pulseaudio] source.c:     device.class = "monitor"
I: [pulseaudio] source.c:     alsa.card = "1"
I: [pulseaudio] source.c:     alsa.card_name = "Intel HDMI/DP LPE Audio"
I: [pulseaudio] source.c:     alsa.long_card_name = "Intel HDMI/DP LPE Audio"
I: [pulseaudio] source.c:     alsa.driver_name = "snd_hdmi_lpe_audio"
I: [pulseaudio] source.c:     device.bus_path = "pci-0000:00:02.0-platform-hdmi-lpe-audio"
I: [pulseaudio] source.c:     sysfs.path = "/devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card1"
I: [pulseaudio] source.c:     device.bus = "pci"
I: [pulseaudio] source.c:     device.vendor.id = "8086"
I: [pulseaudio] source.c:     device.vendor.name = "Intel Corporation"
I: [pulseaudio] source.c:     device.product.id = "22b0"
I: [pulseaudio] source.c:     device.product.name = "Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers"
I: [pulseaudio] source.c:     device.string = "1"
I: [pulseaudio] source.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] source.c:     device.icon_name = "audio-card-pci"
I: [pulseaudio] alsa-sink.c: Using 1.0 fragments of size 352832 bytes (2000.18ms), buffer size is 352832 bytes (2000.18ms)
I: [pulseaudio] alsa-sink.c: Time scheduling watermark is 20.00ms
I: [pulseaudio] alsa-sink.c: Driver does not support hardware volume control, falling back to software volume control.
I: [pulseaudio] alsa-sink.c: Driver does not support hardware mute control, falling back to software mute control.
I: [alsa-sink-HdmiLpeAudio] core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 5.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HWSYNC failed (-32)
I: [pulseaudio] module.c: Loaded "module-alsa-card" (index: #22; argument: "device_id="1" name="pci-0000_00_02.0-platform-hdmi-lpe-audio" card_name="alsa_card.pci-0000_00_02.0-platform-hdmi-lpe-audio" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1"").
I: [pulseaudio] module-udev-detect.c: Card /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card1 (alsa_card.pci-0000_00_02.0-platform-hdmi-lpe-audio) module loaded.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.
I: [alsa-sink-HdmiLpeAudio] alsa-sink.c: Starting playback.

Note I'm seeing this on multiple Cherry Trail devices as well
as on a Bay Trail Asus T100TA (if I remember correctly, not sure about
that last one).

Regards,

Hans
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