On Tue, Mar 1, 2011 at 5:34 PM, r10kindsofpeople <r10kindsofpeople@xxxxxxxxx> wrote: > Ok, let's try problem 2: something is causing corrupted MIDI messages. > > Using the snd-serial-u16550 driver I have two MIDI inputs. Every now > and then (after 5-15 minutes of playing) I get a dropped or corrupted > message. I managed to capture this using both a logic analyzer on the > serial data and software logging of the ALSA ports. > <snip> > Stats are same as before: > kernel 2.6.35-24 (Ubuntu 10.10) > ALSA 1.0.23 > snd-serial-u16550 port=0x3f8 irq=4 adaptor=4 speed=115200 ins=3 outs=3 > > John > Another data point in case anyone cares... under Ubuntu 10.04 (server) I could not replicate the problem. Installed 10.04 (NBR) and it appears to have returned. So something in the background is keeping the driver from servicing interrupts? John ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
