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View Full Version : FC 10 Upgrade -> Choppy, useless sound

leamas
2008-11-27, 01:02 PM CST
I had a perfectly working sound setup for my FC9 box. However, after a FC 10 upgrade, the sound is extremely "choppy" and there are even occasional artifacts. Boring, I liked my sound...

I rechecked the /etc/pulse configuration files, they seem to be the original installed. The hw is an nVida MCP55 chip. The realtime privileges seems to be OK, no indications of problems in /var/log/messages.

Any clues out there?

--alec
leamas
2008-11-27, 01:17 PM CST
Well, stating the problem s to find the solution. It seems that this is not an overall sound issue, it depends on the application used. VLC gives indeed the choppy sound on FC10 (worked fine on FC9) whereas at least Rhytmbox and Totem works fine. Strange, indeed, but I can live with it.
nspmangalore
2008-11-27, 01:23 PM CST
hmm...

try using gnome-sound-properties to try and debug the problem.

report back after check
godzone
2008-12-05, 11:18 PM CST
OK, following all the other suggestions i.e deleting alsa-lugins-pulseaudio and adding alsa-oss and alsa-libs.i386 etc, I think I am nearly there. I can play a CD
LBCoder
2008-12-06, 04:49 PM CST
Did you bother to configure vlc to use pulseaudio?
Horas
2008-12-07, 09:48 AM CST
You can try to turn timer-based scheduling off. Just do the following:

In "/etc/pulse/default.pa by"
replace "load-module module-hal-detect"
by "load-module module-hal-detect tsched=0"

Source: http://fedoraproject.org/wiki/Features/GlitchFreeAudio
entwanzer
2009-01-09, 05:01 PM CST
I had the same Problem with Fedora 9 and 10.
The sound was fine after I changed the order of sound devices in the KDE Sound System Configuration.
System Settings -> Sound -> move PulseAudio down and your hardware up in the list.
leamas
2009-01-10, 02:39 AM CST
Actually, I've stumbled over this once more, trying to play DVD:s. In this case, VLC seems to be the only option. And the sound is, well, you all know.

I found some help in http://forums.fedoraforum.org/showthread.php?t=203708 i. e., to edit /etc/pulse/daemon.conf. The problem is still there, but the sound is usable.

As for the KDE "move in list" trick: I'm on gnome, does anyone know the corresponding CLI or gnome procedure?