This is a regression in Plasma 5.7.1 relative to Plasma 5.6.5. I have an Intel-HDA card with PulseAudio 7.1.1 on Fedora 23. My card is hooked up to both my external speakers as well as a headset. I can switch the audio from headset to speakers by using the commands: ``` pactl set-card-profile alsa_card.pci-0000_00_1b.0 output:analog-surround-40+input:analog-stereo pactl set-sink-port alsa_output.pci-0000_00_1b.0.analog-surround-40 analog-output-lineout amixer -c $CARD sset "Auto-Mute Mode" Disabled amixer -c $CARD sset 'Headphone',1 100 mute ``` and vice-versa: ``` pactl set-card-profile alsa_card.pci-0000_00_1b.0 output:analog-stereo+input:analog-stereo pactl set-sink-port alsa_output.pci-0000_00_1b.0.analog-stereo analog-output-headphones amixer -c $CARD sset "Auto-Mute Mode" Enabled amixer -c $CARD sset 'Headphone',1 100 unmute ``` As of Plasma 5.7.1, the above commands still work, but KDE seems to lose its connection to PulseAudio when they are run. In `.xsession-errors`, immediately upon the switch I see: org.kde.plasma.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-40" After that point, I cannot, use the volume up/down/mute keys successfully. Though moving the sliders in the pulse-pa applet does still work. A restart of plasma restores the connection to pulseaudio and restores the up/down/mute key functionality. Reproducible: Always Steps to Reproduce: 1. Change pulseaudio card profile and sink port 2. Attempt to use volume up/down/mute buttons Actual Results: Volume buttons no longer work Expected Results: Volume buttons should still work
This happen to changing the sound card's profile from phonon.
Git commit 270110e5520f2ea3f2f50b0dc7e5b0e0f4647e07 by David Rosca. Committed on 21/09/2016 at 10:45. Pushed by drosca into branch 'Plasma/5.8'. Make sure that default devices are not null Sometimes at the time when default sink/source change is signalled by pa, we don't have that device in sinks/sources list yet. Try to update default devices also when sinks/sources are added and deleted. Differential Revision: https://phabricator.kde.org/D2824 M +27 -9 src/server.cpp M +6 -1 src/server.h http://commits.kde.org/plasma-pa/270110e5520f2ea3f2f50b0dc7e5b0e0f4647e07