Created attachment 146578 [details] screeen recording SUMMARY I can reproduce this bug with chromium-based browsers but can't with Firefox and VLC player. STEPS TO REPRODUCE 1. play a youtube video with a chromium-based browser (can reproduce on my system with ungoogled chromium from flathub, Vivaldi and Opera) 2. make sure you can control video playback with Media Palyer applet in system tray 3. click on plasma-pa applet and click on 'Applications' tab 4. hover over Media Player applet and adjust the volume of the video by scrolling up/down OBSERVED RESULT an OSD shows up showing the volume change, but the volume remains the same in the 'Applications' tab of plasma-pa applet. Please watch the attached screen recording. EXPECTED RESULT 'Applications' tab should always reflect volume adjustments done via Media Player applet SOFTWARE/OS VERSIONS Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.24.80 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.3 Graphics Platform: Wayland
The media player applet changes the Volume property of the application's MPRIS interface. Whether or not this has any relation to the application volume seen in the audio applet is up to the application
Scrolling over the applet changes the global volume, not the volume of the app that's currently playing audio.
(In reply to Nate Graham from comment #2) > Scrolling over the applet changes the global volume, not the volume of the > app that's currently playing audio. This is about scrolling over the _Media Controller_ applet
Oops! My mistake. So for me, when I scroll over the media controller applet while a video is playing in chromium, I see an OSD for the volume, but the volume of the stream actually doesn't change at all. Do you see that too, Patrick?
On my system the volume changes according to what the OSD indicates. Only the volume level seen in 'Applications' tab remains the same.
I'm seeing the same as Nate describes. In any case, we're setting the volume on Chromium's MPRIS interface, that's separate to what is exposed in PulseAudio
e.g. VLC does it like you expect it