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Adel Ahmed
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PostPosted: Wed Dec 18, 2019 1:01 am    Post subject: error opening a sound device Reply with quote

If i try to use alsa in any application I usually get the following error:
ALSA Error: snd_pcm_hw_params(alsa_pcm, hw_params) Invalid argument
Error opening a sound device.

this error specifically is from mednafen, but i always get the snd_pcmhw_params from other programs, pulseaudio works fine.

kerenl config:
https://pastebin.com/hzwjJNFz
my sound device does not show up in lspci but I have the following modules auto loaded:
Code:
adel@cherry ~ $ lsmod
Module                  Size  Used by
battery                20480  0
snd_soc_sst_bytcr_rt5651    28672  0
joydev                 24576  0
intel_spi_platform     16384  0
intel_spi              16384  1 intel_spi_platform
spi_nor                36864  1 intel_spi
mtd                    53248  2 intel_spi
mei_txe                24576  0
mei                    73728  1 mei_txe
intel_xhci_usb_role_switch    16384  0
roles                  16384  1 intel_xhci_usb_role_switch
snd_intel_sst_acpi     16384  1
snd_intel_sst_core     36864  1 snd_intel_sst_acpi
snd_soc_sst_atom_hifi2_platform    81920  2 snd_intel_sst_core
snd_soc_acpi_intel_match    24576  1 snd_intel_sst_acpi
snd_soc_acpi           16384  3 snd_soc_acpi_intel_match,snd_soc_sst_bytcr_rt5651,snd_intel_sst_acpi
snd_soc_rt5651         81920  1
snd_soc_rl6231         16384  1 snd_soc_rt5651
axp20x_i2c             16384  0
axp20x                 28672  1 axp20x_i2c
snd_soc_core          184320  3 snd_soc_rt5651,snd_soc_sst_bytcr_rt5651,snd_soc_sst_atom_hifi2_platform
r8723bs               671744  0
snd_compress           20480  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
efivarfs               16384  1
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Banana
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PostPosted: Sat Dec 21, 2019 10:42 am    Post subject: Reply with quote

Have a look here for some more steps to check: https://forums.gentoo.org/viewtopic-t-1028150-highlight-sndpcmdmixopen.html
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Adel Ahmed
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PostPosted: Sat Dec 21, 2019 1:30 pm    Post subject: Reply with quote

I just went through that thread, the checks are all fine.
changing devices on my soud card produces static sounds like output
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NeddySeagoon
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PostPosted: Sat Dec 21, 2019 2:04 pm    Post subject: Reply with quote

Adel Ahmed,

Please post the content of /proc/asound/devices

What sound output are you trying to use HDMI, analogue ...

All these
Code:
snd_soc_
modules look a bit scary.
Please post your
Code:
lspci -nnk
too.
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Adel Ahmed
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PostPosted: Sat Dec 21, 2019 4:10 pm    Post subject: Reply with quote

Code:
adel@cherry ~ $ cat /proc/asound/devices
  0: [ 0]   : control
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 24: [ 0- 0]: digital audio capture
 33:        : timer


I'm using my built in sound card to play music on the latpopt speaker, I don't know if that answers your question

Code:
adel@cherry ~ $ lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:2280] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:7270]
   Kernel driver in use: iosf_mbi_pci
00:02.0 VGA compatible controller [0300]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b0] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:7270]
   Kernel driver in use: i915
00:03.0 Multimedia controller [0480]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit [8086:22b8] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit [8086:7270]
00:0b.0 Signal processing controller [1180]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [8086:22dc] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [8086:7270]
00:14.0 USB controller [0c03]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:22b5] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:7270]
   Kernel driver in use: xhci_hcd
00:1a.0 Encryption controller [1080]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:2298] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:7270]
   Kernel driver in use: mei_txe
   Kernel modules: mei_txe
00:1f.0 ISA bridge [0601]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:229c] (rev 36)
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:7270]
   Kernel driver in use: lpc_ich
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Banana
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PostPosted: Wed Dec 25, 2019 9:43 am    Post subject: Reply with quote

I dont't see anything with "audio" in your lspci -nnk output. So do you know which hardware is build in? If you have dualboot with windows, maybe you can find the infor on the soundcard there.
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Adel Ahmed
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PostPosted: Wed Dec 25, 2019 9:58 am    Post subject: Reply with quote

it's one of those baytrail laptops
audio is not connected via PCI, it's connected via acpi
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Banana
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PostPosted: Wed Dec 25, 2019 3:43 pm    Post subject: Reply with quote

uhm well, don't now anything about this.

Maybe this post can help: https://forums.gentoo.org/viewtopic-p-8264394.html
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Adel Ahmed
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PostPosted: Fri Jan 03, 2020 6:12 pm    Post subject: Reply with quote

tahnsk for sharing the link, it's extreemly useful
it did not solve the problem however

Code:
I found the following in dmesg:
[   51.594901] intel_sst_acpi 808622A8:00: FW Version 01.0b.02.02
[   53.358551]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[  292.091209]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[  487.506839] tar (4072) used greatest stack depth: 10120 bytes left
[  713.697619]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[  713.699024]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[  728.167223]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[  728.168721]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[ 1141.309296]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
[ 1141.310795]  Audio Port: ASoC: no backend DAIs enabled for Audio Port
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Adel Ahmed
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PostPosted: Fri Jan 10, 2020 2:52 pm    Post subject: Reply with quote

I played a bit with thr kernel config
Alsa works a few minutes after the os boots, but thr sound is too fast and squeaky
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