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. -- Tanu https://www.patreon.com/tanuk _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
