[pulseaudio-tickets] [Bug 99607] Lack of hardware volume no longer supported with HifimeDIY Tiny

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99607

--- Comment #2 from Tanu Kaskinen <tanuk at iki.fi> ---
If the card presents a volume element that doesn't do anything, that's a kernel
driver bug, and should be reported to the alsa developers:
http://alsa-project.org/main/index.php/Bug_Tracking

There's currently no simple way to disable hardware volume. One way to do it is
to set the card profile to "off" and then load module-alsa-sink. When you set
the card profile to "off", the module-alsa-card instance that was loaded
automatically by module-udev-detect will not try to use the device, so it won't
conflict with the module-alsa-sink instance that you load manually.
module-alsa-sink doesn't use hardware volume unless you explicitly tell it to.

Here's the command to set the profile to "off" (you can also do this with
pavucontrol):

pactl set-card-profile alsa_card.usb-Burr-Brown_from_TI_USB_Audio_DAC-00 off

Here's the command to load module-alsa-sink:

pactl load-module module-alsa-sink device=hw:2

("hw:2" assumes that the alsa card index is 2.)

The set-card-profile command needs to be given only once. The load-module
command needs to be given every time you boot or plug in the sound card. If the
sound card is always plugged in, you can put the load-module command in
/etc/pulse/default.pa.

Btw, attachments are nicer for big dumps of information, because if they're in
the message body, reading the bug discussion requires a lot of scrolling.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/pulseaudio-bugs/attachments/20170204/a9814dfc/attachment.html>