Arch Linux

loki

Member

Registered: 2015-12-26

Posts: 34

Loss of audio after recent full system update.[solved]

After my initial configuration with sound I have had no problems, even through system updates. However after a recent update I lost sound, and I cannot for the life of me get it back. cat /proc/asound/cards returns

0 [HDMI           ]: HDA-Intel - HDA Intel HDMI
                     HDA Intel HDMI at 0xf7418000 irq 49
1 [broadwellrt286 ]: broadwell-rt286 - broadwell-rt286
                                       broadwell-rt286

and so I set the broadwell as default, made sure I had the right modules loaded and unmute it with alsamixer. But I still get no audio, even though my system appears to be piping audio to the card.

Last edited by loki (2016-02-04 18:20:14)

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V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,076

Re: Loss of audio after recent full system update.[solved]

What did you configure exactly, how are you testing that you have or have no sound? generally you should define the correct initialization order which is random on every boot unless configured:  https://wiki.archlinux.org/index.php/Ad … sound_card

loki

Member

Registered: 2015-12-26

Posts: 34

Re: Loss of audio after recent full system update.[solved]

I have not configured anything, aside from changing the default soundcard with

asoundconf set-default-card broadwellrt286

which does make it the default card and I've checked the modules with

lsmod | grep broadwell
snd_soc_sst_broadwell 16384 0
snd_soc_sst_haswell_pcm 77824 3 snd_soc_sst_broadwell
snd_soc_rt286 36864 2 snd_soc_sst_broadwell
snd_soc_core 172032 3 snd_soc_sst_haswell_pcm,snd_soc_sst_broadwell,snd_soc_rt286

which looks good to me and finally I check sound with

speaker-test -D default -c 2

and it seems to like that as it runs, just no actual sound

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loki

Member

Registered: 2015-12-26

Posts: 34

Re: Loss of audio after recent full system update.[solved]

Ahh figured it out, the most recent kernel changes the initilization mode from hda to i2s.

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ashwin.vbs

Member

Registered: 2016-02-04

Posts: 5

Re: Loss of audio after recent full system update.[solved]

@ loki so how do we fix the issue?

loki

Member

Registered: 2015-12-26

Posts: 34

Re: Loss of audio after recent full system update.[solved]

You can roll back to arch kernel 4.3 or you can recompile the kernel with the proper settings

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Torred

Member

Registered: 2014-09-16

Posts: 9

Re: Loss of audio after recent full system update.[solved]

I'm having the same problems on a Dell XPS 13 2015 with A02 bios. After upgrading to kernel 4.4.1-2-ARCH I lost sound and after following the advice in the wiki I sill have no sound. Unfortunately, after downgrading to kernel 4.3 the problem persists.

@loki did you manage to get sound working after downgrading? I'm noticing that both alsa-restore.service and alsa-state.service fail on boot.

Last edited by Torred (2016-02-04 17:27:42)

loki

Member

Registered: 2015-12-26

Posts: 34

Re: Loss of audio after recent full system update.[solved]

After reading the bug listed here https://bugs.archlinux.org/task/47989 I thought that I had figured it out, however after recompiling the kernel with the proper flag marked I still don't have sound. Although I have yet to try downgrading

I have, hopfully temporarily, removed the [solved] tag from this post.

Okay actually after several reboots, changing the kernel flag does infact work.

The changes made to get audio working (on the dell xps 13 9343) can be found at these 3 links
https://mega.nz/#!VlJnzQqB!7Xe-9W1Z7WMf … 20lalJfXOs
https://mega.nz/#!o55yQKZR!s1-gRPxJKEvQ … t9OvAS_NGw
https://mega.nz/#!ctI21CrR!YoVDypcziPzX … JWcgVWKPtE

Download then run
sudo pacman -U /home/<yourusername>/path/to/downloads/linux*4.4.1-2*.tar.xz

do be careful with this though, its kernel stuff

Last edited by loki (2016-02-04 18:19:21)

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Torred

Member

Registered: 2014-09-16

Posts: 9

Re: Loss of audio after recent full system update.[solved]

I started another thread (when this one was marked solved) https://bbs.archlinux.org/viewtopic.php?id=208461

loki

Member

Registered: 2015-12-26

Posts: 34

Re: Loss of audio after recent full system update.[solved]

I changed it back to solved as I got it to work

It looks like you have the same hardware that  I do, so this should work for you

Last edited by loki (2016-02-04 18:22:51)

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