When reading my own message, I just recognized aplay's error message
"invalid value for card". Got it playing with:
aplay -Ddmix:CARD=chtrt5645,DEV=1 someAudio.wav
So most questions solved. I'm sorry for the noise.
On 01.05.21 15:36, daniel.savi wrote:
Dear list-members. New to the list and an archive search didn't help
so far.
I'm trying to use the internal sound of a lenovo miix 310 tablet
(intel atom x5-Z8350 based). It's an alsa-only configuration. Sound
works with an external usb soundcard when blacklisting the kernel
modules for the internal sound device.
It seems that I'm having a rt5645 device. But I cannot play anything
on it. With the many channels and options this device has, the ucm
rules as well, I'm stuck. My basic question is: How can I figure out
where the problem actually is? Is the hardware not supported? Is it a
routing issue? Any other things I need to check?
Some of the things I tried with output:
aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: chtrt5645 [chtrt5645], device 0: Audio (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: chtrt5645 [chtrt5645], device 1: Deep-Buffer Audio (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
alsaucm list _verbs:
0: HiFi
Default
(for alsaucm, I've created symlinks in /usr/share/alsa/ucm/ for
LENOVO-80SG-MIIX310_10ICR-Cavalli, pointing to chtrt5645, then:
alsaucm open chtrt5645)
cat /proc/asound/devices
2: [ 0- 0]: digital audio playback
3: [ 0- 0]: digital audio capture
4: [ 0- 1]: digital audio playback
5: [ 0] : control
33: : timer
cat /proc/asound/cards
0 [chtrt5645 ]: chtrt5645 - chtrt5645
LENOVO-80SG-MIIX310_10ICR-Cavalli
I also blacklisted the hdmi module in /etc/modprobe.d/blacklisted.conf:
blacklist snd_hdmi_lpe_audio
aplay someSound.wav:
ALSA lib pcm_direct.c:1824:(_snd_pcm_direct_get_slave_ipc_offset)
Invalid value for card
aplay: main:828: audio open error: No such file or directory
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--
Daniel Savi
Nidelbadstrasse 6
8038 Zürich
daniel.savi@xxxxxxxx
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