Re: mtpav - new observations

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I've submitted official bug reports.. is anyone working on this or am I
wasting my time and should discconnect it from the parallel port and
just connect via multiple usb MIDI interfaces into the mtpav rack?

(I can't actually swap for an m-audio or edirol as they don't have the
routing capabilities...such as eliminating clock sources from individual
ports e.t.c.) 




On Sat, 2006-12-09 at 18:49 +1100, Allan Klinbail wrote:
> P.S 
> 
> Further testing with MusE comparing sync performance with snd-usb-audio
> compared to snd-mtpav, shows that output sync definitely isn't being
> sent properly to the device. 
> 
> cheers
> 
> Allan 
> 
> 
> 
> 
> 
> 
> 
> On Sat, 2006-12-09 at 18:14 +1100, Allan Klinbail wrote: 
> > Hi 
> > 
> > I just tried opening a file with multiple ports assigned to the mtpav.
> > It locked the system. 
> > 
> > This repeated in testing again. However if opening assigning a port to
> > the mtpav prior to opening a file it worked perfectly. 
> > 
> > cheers
> > 
> > Allan 
> > 
> > 
> > 
> > On Fri, 2006-12-08 at 02:07 +1100, Allan Klinbail wrote:
> > > Hi Clemens 
> > > 
> > > I can't find any other sequencers with sync implemented properly... 
> > > 
> > > Rosegarden doesn't accept any MIDI sync in on my system, and does not
> > > seem to set a correct out as the external sequencer shows it's play
> > > light go on but does not catch up sync until stop is pressed. 
> > > 
> > > MusE has rock solid sync out and I am only seeing the problems on sync
> > > in. I do not know of another software I can use to compare to try and
> > > identify if it is the driver or the software. 
> > > 
> > > Let me know if you know of one. Takashi, once sent me a cli based
> > > program to test this, but I know longer have it. (It was on a 2.2 kernel
> > > so probably wouldn't work anyway)  
> > > 
> > > cheers
> > > 
> > >  
> > > Allan 
> > > 
> > > 
> > > On Thu, 2006-12-07 at 19:40 +1100, Allan Klinbail wrote:
> > > > Hi Clemens, 
> > > > 
> > > > I haven't tried the other 2 yet (will do today or tomorrow), however I
> > > > have done some more extensive testing today. This only happens when the
> > > > mtp-av is actually plugged in and turned on at the point where the
> > > > driver is first used (i.e. assigning a MIDI Port in MusE to a channel on
> > > > the mtpav or trying to send play a midi file through one of the mtpav
> > > > ports using a command line sequencer. If the device is actually turned
> > > > off the driver computer behaves as if everything is okay. 
> > > > 
> > > > I also found that the driver doesn't hang the machine if a MIDI port is
> > > > assigned in MusE while the device is powered down. The system doesn't go
> > > > into hard lock if the system is  powered up after this. The driver works
> > > > reasonably reliably in this state. 
> > > > 
> > > > I was able to add extra ports in MusE after it was turned on (only after
> > > > the first port had already been assigned). I was also able to play to
> > > > and record from the individual ports. 
> > > > 
> > > > I say reasonably reliably as the timing doesn't seem to be working 100%.
> > > > The "tach" light flashes on the mtpav and I don't seem to be able to get
> > > > reliable sync. However this only happens when I don't block Midi clock
> > > > from one of my other external sequencers and don't disconnect the MIDI
> > > > cables from my usb MIDI controller from the mtpav. 
> > > > 
> > > > Admittedly this could be to do with the sync implementation in MusE, so
> > > > I will try with Rosegarden as well. 
> > > > 
> > > > I have to go to dinner now, but let me know if there is anyway I can get
> > > > debug information for you that will help solve this. 
> > > > 
> > > > ALthough it's still not working rock solidly, I am much happier to see
> > > > something start to work. Unfortunately though this appears to be more
> > > > driver related than hardware, so a quick fix like a new motherboard
> > > > won't solve it.  
> > > > 
> > > > cheers
> > > > 
> > > > Allan  
> > > > 
> > > >   
> > > > 
> > > > 
> > > > On Thu, 2006-12-07 at 08:31 +0100, Clemens Ladisch wrote: 
> > > > > Allan Klinbail wrote:
> > > > > > I have only been getting a total lockup when trying to initialise the
> > > > > > mtpav driver for my MOTU midi timepiece (i.e. actually using it in a
> > > > > > sequencer), for a very long time. 
> > > > > 
> > > > > Does this happen only with the snd-mtpav driver or also with other
> > > > > drivers like snd-mpu401 or snd-seq-dummy?
> > > > > 
> > > > > 
> > > > > Regards,
> > > > > Clemens
> > > > 
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