#aarch64-laptops on 2021-12-07 — irc logs at oftc.irclog.whitequark.org

2021-07-26 22:56 ChanServ changed the topic of #aarch64-laptops to: Linux support for AArch64 Laptops (Asus NovaGo TP370QL - HP Envy x2 - Lenovo Mixx 630 - Lenovo Yoga C630)

01:13 <Dylanger> Does anyone have any documentation or know how to debug alsa driver selection/compatibility?

01:14 <Dylanger> https://github.com/torvalds/linux/blob/master/sound/soc/codecs/max98357a.c

01:14 <Dylanger> Think I'll just have to `printf` some HERE in here to see if it's even being hit

01:27 * Dylanger sent a cpp code block: https://matrix.org/_matrix/media/r0/download/matrix.org/uxUiraCKAgpEewMgscqNOuCf

01:27 <Dylanger> hm

01:27 <Dylanger> I wonder where `CONFIG_OF` is being set

01:29 <Dylanger> Yeah it's set

03:31 <Dylanger> https://github.com/thesofproject/linux/issues/3249#issuecomment-964267027

03:31 <Dylanger> I think we're missing the Linux driver for the max98360a

03:31 <Dylanger> It's there for AMD and Intel but nothing for Qualcomm based SoCs

03:34 <Dylanger> So it looks like you need 2 drivers in ALSA to get a soundcard working, one for the actual soundcard, then another for whatever CPU you're using

03:53 <Dylanger> https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/sound/google%2Csc7180-trogdor.yaml

03:54 <Dylanger> Hm, I think this is the driver

04:35 * Dylanger sent a code block: https://matrix.org/_matrix/media/r0/download/matrix.org/KABqbBDjzqCtyPsncDHPljMx

04:35 <Dylanger> If I manage to play sound, hw_params will display the correct settings

04:36 <Dylanger> I'm not sure where these settings are retrieved from

04:42 * Dylanger sent a code block: https://matrix.org/_matrix/media/r0/download/matrix.org/UwWBqyiOgVdVrRFILNyuXQma

04:42 <Dylanger> Hmm this is a better looking error

04:50 * Dylanger sent a code block: https://matrix.org/_matrix/media/r0/download/matrix.org/bmGcIUZFVStDRIUEphkYsIYV

04:50 <Dylanger> huh so PipeWire sees the card

04:50 <Dylanger> No sinks tho

04:53 <Dylanger> I think the issue could actually be PipeWise/PulseAudio instead of being ALSA related

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12:49 <Dylanger> Got it "working"

12:49 <Dylanger> `load-module module-alsa-sink device=plughw:<card#>,<device#>` in `/etc/pulse/default.pa`

12:49 <Dylanger> Adds the sink

12:50 <Dylanger> I think this is a hack, it's forcing the plughw as a sink

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20:57 <Dylanger> I now hate the Linux sound stack 😭🤣

20:58 <macc24> Dylanger: how bout you try improving it

21:01 <Dylanger> She's too far gone I'm afraid, ALSA is immensely complex

21:19 <steev> yes, yes it is

21:19 <macc24> damn i'm glad i barely touch it ever

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