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Hui Wang 36fcfeb211 alsa-sink/source: set volume to hw immediately if ucm_port changing 
Recently we found an issue of output volume on speaker and headphone,
they should have their own volume but in practice they share one
output volume.

This issue happens on the laptops which use the ucm2 sof-hda-dsp,
originally the speaker has output volume A while the headphone has the
output volume B, suppose the speaker is the active port at the moment
and the output volume is A, users plug a headphone to the jack and the
headphone becomes the active port, in this process, ucm_set_port()
calls _disdev/_enadev which triggers the io_mixer_callback(), in the
meanwhile, the module_device_restore will restore the headphone's
volume to B, it will call set_volume_cb() to set the volume to B, but
this value is not written to hw immediately, during the time of
waiting for the B to be written to the hw, the io_mixer_callback()
calls get_volume_cb(), it reads hw volume and gets the volume A, then
it overrides the output volume to A, this results in the headphone
gets the volume A instead of B.

If a machine doesn't use the ucm, this issue will not happen since the
set_port_cb() will not trigger the io_mixer_callback(). If the ports
don't belong to the same sink/source, this issue also doesn't happen.

BugLink: http://bugs.launchpad.net/bugs/1930188
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/577>
2021-06-16 19:58:24 +03:00
.gitlab doc: Add some contributor guidelines 2021-01-04 15:30:38 +00:00
coverity build: Add Coverity scan model 2017-03-06 08:22:33 +01:00
doc card: handle sticky profile flag 2021-06-10 10:30:58 +00:00
doxygen build-sys: Fix a couple of meson warnings 2021-05-17 16:07:33 -04:00
man Apply 1 suggestion(s) to 1 file(s) 2021-05-17 15:35:07 +00:00
po Translated using Weblate (Finnish) 2021-06-03 21:02:44 +03:00
scripts build-sys: meson: fix meson dist version 2021-03-15 18:25:06 +00:00
shell-completion build-sys: meson: allow building client libraries only 2021-04-19 18:48:59 +00:00
src alsa-sink/source: set volume to hw immediately if ucm_port changing 2021-06-16 19:58:24 +03:00
vala meson: Install vala apis 2019-06-08 11:57:00 +02:00
.gitignore gitignore: Add install/ for local prefixed installs 2021-01-19 10:57:17 -05:00
.gitlab-ci.yml build-sys: meson: fix meson dist version 2021-03-15 18:25:06 +00:00
.mailmap add a .mailmap file for git shortlog 2009-02-04 22:41:45 +01:00
CODE_OF_CONDUCT.md Adopt a Code of Conduct 2018-09-26 02:39:00 +00:00
CONTRIBUTING.md doc: Add some contributor guidelines 2021-01-04 15:30:38 +00:00
git-version-gen git-version-gen: Avoid further processing when tarball-version is present 2015-10-20 16:55:23 +02:00
GPL * rename "LICENSE" to "LGPL" 2006-04-20 12:33:00 +00:00
LGPL * rename "LICENSE" to "LGPL" 2006-04-20 12:33:00 +00:00
libpulse-mainloop-glib.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
libpulse-simple.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
libpulse.pc.in build: Fix static linking 2012-07-17 11:05:34 +05:30
LICENSE qpaeq: change license from AGPL to LGPL v2.1 2017-09-19 21:29:44 +03:00
meson.build build-sys: meson: restore big endian detection 2021-06-03 18:38:06 +00:00
meson_options.txt build-sys: meson: make doxygen optional 2021-05-19 01:05:42 +03:00
NEWS Update NEWS 2021-01-16 20:18:58 +02:00
PROTOCOL protocol-native: add message sending capability 2020-12-03 14:41:39 +00:00
pulseaudio-text.svg merge 'lennart' branch back into trunk. 2007-10-28 19:13:50 +00:00
pulseaudio.supp Add a Valgrind suppression file 2014-09-21 11:00:51 +03:00
pulseaudio.svg Add PulseAudio logo to tree. 2006-08-28 06:25:41 +00:00
PulseAudioConfig.cmake.in build-sys: Provide a simple CMake Config setup (similar to pkgconfig) 2011-10-19 23:49:23 +01:00
PulseAudioConfigVersion.cmake.in build-sys: Provide a simple CMake Config setup (similar to pkgconfig) 2011-10-19 23:49:23 +01:00
README doc: link to site documentation for IRC channels 2021-06-14 18:55:33 +03:00
todo build-sys: Stop using symdef headers for modules 2017-12-12 12:58:52 +05:30

README 

PULSEAUDIO SOUND SERVER

WEB SITE:
	http://pulseaudio.org/

GIT:
	https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git

GitLab:
	https://gitlab.freedesktop.org/pulseaudio/pulseaudio

MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss

GIT COMMITS MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-commits

TRAC/BUGZILLA TICKET CHANGES MAILING LIST:
	http://lists.freedesktop.org/mailman/listinfo/pulseaudio-bugs

IRC:
	https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Community/#ircandmatrix

FRESHMEAT:
	http://freshmeat.net/projects/pulseaudio/

OHLOH:
	http://www.ohloh.net/projects/4038

AUTHORS:
	Several

HACKING:
	In order to run pulseaudio from the build dir:
	  meson build
	  meson compile -C build
	  build/src/daemon/pulseaudio -n -F build/src/daemon/default.pa -p $(pwd)/build/src/modules/

SPELLING:
        PulseAudio