Daniel wrote: > 2016-08-24 9:15 GMT+02:00 Clemens Ladisch <cladisch@xxxxxxxxxxxxxx>: >> Daniel wrote: >>> I have a problem for a long time with an USB audio and USB MIDI device >>> (DJ controller) that used to work flawlessly on a now very old >>> 3.0.0-12 kernel based (ubuntu studio) system but that crashes for any >>> kernel version great than this in certain conditions. >> >> What is the first kernel version that does not work? >> Might it be 3.8? > > I tested the old system, it works up to linux 3.0.0-14 and the problem > starts with linux 3.0.0-15. Do you mean 3.0.0-15.25? https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-15.25~lucid1 As far as I can tell, there were no relevant changes to the USB audio driver. What did change was the scheduling if isochronous transfers in the EHCI driver. Try asking on the linux-usb mailing list. Regards, Clemens ------------------------------------------------------------------------------ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
