On 1/23/20 6:49 AM, Michal Feix wrote:
Hello,
there is no sound working via speakers or headphones jack on Asus
T100TAM. Sound works correctly via HDMI or Bluetooth headphones. The
chip on this Baytrail machine is correctly recognized as bytcr_rt5640.
From dmesg:
bytcr_rt5640 bytcr_rt5640: quirk DMIC1_MAP enabled
bytcr_rt5640 bytcr_rt5640: quirk realtek,jack-detect-source 3
bytcr_rt5640 bytcr_rt5640: quirk realtek,over-current-threshold-microamp
2000
bytcr_rt5640 bytcr_rt5640: quirk realtek,over-current-scale-factor 1
bytcr_rt5640 bytcr_rt5640: quirk MCLK_EN enabled
bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> media-cpu-dai mapping ok
bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> deepbuffer-cpu-dai
mapping ok
bytcr_rt5640 bytcr_rt5640: rt5640-aif1 <-> ssp2-port mapping ok
input: bytcr-rt5640 Headset as
/devices/platform/80860F28:00/bytcr_rt5640/sound/card0/input17
After bootup, kernel log is filled with: "Baytrail Audio Port: ASoC: no
backend DAIs enabled for Baytrail Audio Port" messages. I do understand
this is due to the missing UCM profile for the machine.
what do you mean with 'missing UCM profile'? It's been available for
many moons, and we worked with Jaroslav/Hans to update for UCMv2.
You should be able to use alsa-ucm and configure things manually, e.g.
alsaucm -c bytcr-rt5640 set _verb HiFi set _enadev Headphones
alsaucm -c bytcr-rt5640 set _verb HiFi set _enadev Speaker
I've successfully uploaded the output of alsa-info.sh.
I'm on Arch linux, with latest alsa-ucm-conf 1.2.1.2 which seems not to
be sufficient to make sound working on this thing. Is there anything I
can provide to help smart Alsa people to help with this?
Can you try the command above and use speaker-test -Dhw:0,0 -c2 -r48000?
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