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 ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user