Setting volume @ zero doesn't work correctly, as the sound card still outputs some sound. On the other side, muting works ok... SOLUTION - Upon setting volume @ zero, two things should happen: ~ the sound card should be silent; ~ the mute flag for the respective chanel should be set system-wide. More or less related reports: Bug 292618 - OSD should show "0%" volume when muted Bug 292616 - "Sound muted" icon is hard to recognize in OSD Bug 248050 - mute doesn't work in kmix Reproducible: Always $ yum list installed phonon* phonon.x86_64, 4.6.0-3.fc17 phonon-backend-vlc.x86_64, 0.6.0-1.fc17 $ cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfe8f4000 irq 45
In which application?
Let's say that Amarok plays some music and we alter the volume using two different ways: FAIL: After setting the master's channel volume to zero via KMix, the soundcard still outputs __some__ music. OK: After setting the volume to zero within Amarok, the soundcard becomes silent, as expected.
When Phonon uses PulseAudio's __virtual__ soundcard, nor the current issue, neither bug 306502 "KMix / Phonon can only change volume in increments of ~3 %" can't be reproduced.
So it's a bug in KMix?
I don't know the exact KDE infrastructure, but for sure this is Phonon or KMix related.
And which exact KDE version is this about?
Fedora 17 / KDE 4.8.5
Please note that I reported this bug against KMix 4.1, not 4.2. Also, this reports may be related: Bug 86065 - volume changes rounded to increments of ~3% Bug 306512 - KMix can only change volume in increments of ~3 %
(In reply to comment #8) > Please note that I reported this bug against KMix 4.1, not 4.2. > You didn't specify initially...
Please check whether other mixers show the same behavior. If you use ALSA directly, check with alsamixer started in a Konsole If you use Pulseaudio, check with pavucontrol What you are using can be found in KMix Main Window: Menu => Help => Hardware information Please report back here.
I use ALSA driver. Alsamixer shows the exact same behaviour - the soundcard outputs some sound while master volume is set at 0.
As this is not a KMix bug (alsamixer behaves the same), I will close this bug report. You might instead consider to open a bug report at the ALSA soundcard driver project (http://www.alsa-project.org/).