On Tuesday 02 February 2010, D. Michael McIntyre wrote:
> m_portCheckNeeded == false 100% of the time. If I comment out the return,
> picking up new or deleted clients works.
>
> Investigating...
OK, this is supposed to be set in some kind of event loop or whatever that's
processing ALSA events
OK, there's this gigantic while statement:
while (snd_seq_event_input(m_midiHandle, &event) > 0) {
Leading to a big switch statement:
switch (event->type) {
Leading to this block:
case SND_SEQ_EVENT_CLIENT_START:
case SND_SEQ_EVENT_CLIENT_EXIT:
case SND_SEQ_EVENT_CLIENT_CHANGE:
case SND_SEQ_EVENT_PORT_START:
case SND_SEQ_EVENT_PORT_EXIT:
case SND_SEQ_EVENT_PORT_CHANGE:
case SND_SEQ_EVENT_PORT_SUBSCRIBED:
case SND_SEQ_EVENT_PORT_UNSUBSCRIBED:
m_portCheckNeeded = true;
// easy to spot debug trace goes here, removed for clarity
break;
So this is telling me that Rosegarden is never receiving any of the above
events from ALSA, and/or something really sinister is afoot.
That debug trace never fires, which explains why m_portCheckNeeded is always
false.
I'm not familiar with the ALSA API in the slightest, but I assume we're
looking for CLIENT_START here. I tried a lot of different things aimed at
triggering *something* from this block in the switch statement, and never did
get this code to fire.
I even tested connecting something to Rosegarden externally. Rosegarden has
no idea of its existence at all, but the connection works.
So at this point I am out of ideas beyond hoping that a reboot might magically
cure this.
Any other thoughts?
And as far as me having sound problems since I upgraded, I generally have
everything working now, and the only thing that gives me pause on occasion is
getting the flash player to make noise. I have to kill some weird process
that pertains to the vagaries of running the 32-bit binary-only flash player
on a 64-bit system, or something to that effect. Nothing related to any of
this at all.
--
D. Michael McIntyre
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