On Tue, 2017-05-09 at 11:00 +0200, Takashi Iwai wrote:
On Tue, 09 May 2017 10:52:56 +0200, Sergio Villar Senin wrote:
O Mar, 09-05-2017 ás 10:37 +0200, Takashi Iwai escribiu:
On Tue, 09 May 2017 10:32:19 +0200, Sergio Villar Senin wrote:
O Mar, 09-05-2017 ás 08:15 +0200, Takashi Iwai escribiu:
On Mon, 08 May 2017 11:34:33 +0200, Sergio Villar Senin wrote:
Hi,
I reported this bug to pulseaudio[1] but after some investigation it looks like the alsa mixer is not working for the dock.
I'll be happy to provide any additional info which might be required (attaching alsa-info.sh BTW). Please add me to the Cc as I am not subscribed to this list
Did you try to update the dock BIOS? The old BIOS on some Dell docks had a few known issues.
I tried with a virtual machine but the firmware update program crashes for some reason. Anyway the dock seems to be working fine because the Windows virtual machine properly detects the headphones when plugged in.
Well, it's a USB-audio device and it doesn't give the jack detection control like HD-audio.
Not sure about the next step. Do you need additional information to solve the issue? Are you saying that it's a HW issue and that alsa is not going to provide any fix? I'm a bit confused.
In general Linux USB-audio driver doesn't provide the jack detection control. If any, it's vendor-specific.
The problem is not just that jack detection doesn't work, the problem is that the mixer doesn't work at all:
$ amixer -c1 amixer: Mixer hw:1 load error: Invalid argument
I would expect the USB-audio driver to provide a mixer control for choosing the routing, unless that's implemented in some non-standard way too. As it stands, PulseAudio has no control over the routing, so the headphone output apparently can't be used at all.