MuseScore and Rosegarden Problem

[progmadmartin]

I have a problem I am hoping someone can help me with. I use Musescore and Rosegarden. However, when use Musescore and then go to use Rosegarden, Musescore becomes unresponsive and I can no longer hear any sound from it. The only way to solve this problem I have found is to reboot my system. If I run Musescore from a terminal, quit, then run Rosegarden, quit that and try and run Musescore again I get the following message.

martin@martin-desktop:~$ mscore
PulseAudio found, but no need to suspend. Starting mscore.real...
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
link SVGID_3_ hasn't been detected!
link SVGID_3_ hasn't been detected!
registerPlugin: add action idx 1
Load plugin: no menu property
preferences.checkUpdateStartup: 24
lastupdate: 16.11.2010 11:35:27.141
martin@martin-desktop:~$ mscore
PulseAudio found, but no need to suspend. Starting mscore.real...
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
Expression 'paTimedOut' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3113
Expression 'PaAlsaStream_WaitForFrames( stream, &framesAvail, &xrun )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3515
link SVGID_3_ hasn't been detected!
link SVGID_3_ hasn't been detected!
registerPlugin: add action idx 1
Load plugin: no menu property
preferences.checkUpdateStartup: 24
lastupdate: 16.11.2010 11:38:02.903
martin@martin-desktop:~$

I can see that the two lines which start Expression are the key to the problem but I don't know what they mean. Any help would be appreciated.

[Pablo]

Hi,

¿Have you tried running mscore with jack? Rosegarden needs jack and mscore can be made jack-aware in the preferences, I/O tab (use jack audio server).

I suggest you get jack up and running first, trhough qjackctl (Jack Control), then "jackify" mscore so you can (hopefully) run both programs at the same time.

Cheers! Pablo

[progmadmartin]

Managed to get Musescore running with Jack but the playback in Musescore was very distorted. Once muse score was run without Jack the sound returned to normal.

[progmadmartin]

Think I may have solved the problem. I changed the setting under Settings-Preferences-I/O for Portaudio device. It was set at default but I changed it so it implicitly picked up my sound card and now the Musescore/Rosegarden problem seems to have gone away.