Comment 11 for bug 1310260

Okay, that's strange, because i have no external monitor connected to my computer. Just the built-in screen.

I only wanted to watch a youtube video. As there was no sound i opened the volume manager to find that the default output device was the radeon HDMI but changing it to the "Intel Stereo HDA" or even changing the volume on the radeon HDMI results in the crash / hang / error described above.

On Xfce the volume sliders disappear immediately and I get the error "Can't connect to PulseAudio:OK"

Doing so on KDE hangs the entire desktop as dolphin / KDE Frameworks tries to access a PCM device on each start.
After a while (5 Min.) dolphin opened and a popup says that the Intel sound chip cannot be accessed and it switches to "Default Device" whatever that may be.

I'm pretty sure it has something to do with Kernel 3.13 enabling radeon audio by default as i had no problems with the daily builds under Kernel 3.12 and the radeon.runpm=1 parameter. As the problem appeared on daily builds I thought that it was no big deal and I should wait for the stable release.

Purging pulseaudio and setting a default alsa device for firefox (as described here http://www.seehuhn.de/pages/alsa) sort of worked but is obviously not the preferred solution.