Arch Linux

x33a

Forum Fellow

Registered: 2009-08-15

Posts: 4,587

Re: Dell XPS 13 2015 A02 bios broken sound after kernel upgrade to 4.4.1-2

Same here @rjs02... using BIOS A07, sound was working fine in I2S mode a week ago. Now the PCH soundcard is completely missing.

Using Manjaro kernels 4.4.2-1 and 4.5rc4-1.

@der_eismann, these forums are for Arch Linux support only. One of your threads has already been closed for violating this policy. Please direct your queries to the Manjaro forums.

der_eismann

Member

Registered: 2016-02-19

Posts: 3

Re: Dell XPS 13 2015 A02 bios broken sound after kernel upgrade to 4.4.1-2

Yes, I'm sorry I forgot that. Then I will be quietly waiting for a solution, that will probably work on any other distribution, too. FYI: Ubuntu 16.04 Beta 1 with kernel 4.4.0-8 also has no PCH sound for me.

htejun

Member

Registered: 2016-03-09

Posts: 1

Re: Dell XPS 13 2015 A02 bios broken sound after kernel upgrade to 4.4.1-2

I was having the same problem with xps 13 9343 (on fedora 23). After reading some posts here, I played with some mixer controls. There's a binary control which is named 'SPO'.

$ amixer -c 1 get SPO
Simple mixer control 'SPO',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]

which was off as shown above. Turning it on made the sound work great again.

$ amixer -c 1 set SPO on
Simple mixer control 'SPO',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

My guess is that pulseaudio doesn't know what the control does and sets it to off.

h2o2

Member

Registered: 2016-03-18

Posts: 1

Re: Dell XPS 13 2015 A02 bios broken sound after kernel upgrade to 4.4.1-2

many thanks, this worked for me on Dell XPS13 9343 running Fedora 23 4.4.5-300

$ cat /proc/asound/modules
 0 snd_hda_intel
 1 snd_soc_sst_broadwell

$ amixer -c 1 get 'SPO'
Simple mixer control 'SPO',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

fdr

Member

Registered: 2016-03-23

Posts: 1

Re: Dell XPS 13 2015 A02 bios broken sound after kernel upgrade to 4.4.1-2

I can also confirm that the approach given by #28 and confirmed by #29 works for attaining laptop speaker output, *but* the headphone jack doesn't work