Audio setup keeps changing back to wrong setting [Solved]

[jandm5895]

I am using Sabayon with the KDE desktop. A few updates ago when I would try to play youtube videos there would be no sound. I checked my audio settings and for some reason the setting in Phonon Audio Hardware Setup the sound card had changed from my audio card ("CM8738") to my video card ("Redwood HDMI Audio [Radeon HD 5000 Series]"). I changed the setting back to the audio card, clicked "Apply", then clicked "OK" to close the settings window. Sound was restored.
The same thing happened with the latest update. I again changed audio card back to CM8738. Still no sound. I reopened Phonon and it had switched back to the Radeon as the audio card.
Now I can not get it to stay as set as CM8738. It looks like it has changed but if I close then re-open the settings window, it has reverted to the Radeon. I even tried to change the profile of the Radeon to "Off" but it still wont set CM8738 as the audio card.
Can anyone help?

Thanks

[jandm5895]

Update:
Still no audio for Flash videos. After the first post I noticed that SMPlayer also has no audio. As far as I can tell everything else [VLC, system sounds (start up, shutdown, etc.), games] have working audio. I have no idea why some applications have sound and others don't.
Can anyone help?

[Fitzcarraldo]

I don't have the same hardware as you, but I do have two separate audio controllers (Intel 5 Series/3400 Series Chipset HDA plus ATI Redwood HDMI Audio [Radeon HD 5600 Series]) in my main laptop but don't suffer from lack of audio in KDE, although when I look at the Audio Hardware Setup (System Settings > Mulyimedia > Phonon) the Sound Device displayed has always jumped back to the HDMI controller, but that does not stop the audio from the Intel HDA controller (providing I do not click 'Apply', of course).

Try installing PulseAudio Volume Control and checking the PulseAudio channels are correctly configured and not muted:

Code: Select all

$ su
Password:
# equo install pavucontrol
# exit
$ pavucontrol

Another thing you could try is running System Settings as root user for a Konsole window:

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# systemsettings

EDIT: BTW, also run ALSAMixer and check that none of the channels are muted and that the volumes are not set too low. See the article Nostalgia for those ALSA mixer channels that KMix and GNOME Volume Control used to have? for details.

[notzippy]

I have exactly the same problem - when my machine starts up if I play a youtube it plays it a twice the speed no sound and when you check the settings the video card is the sound source. The fastest solution is to run (not as root)

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$ pulseaudio -k


Which fixes audio for me.
BTW, when I run phonon after startup under music it shows the hardware devices for my machine, after "pulseaudio -k" it shows just the "PulseAudio Sound Server"

Nz

[jandm5895]

I had tried everything and could not get the audio working. Then for some reason yesterday it started working all by itself. I don't know how or why but everything is fine now.