Hello all, Tatsuki Sugiura wrote: >>> When I use 3.x, get crack noise on my USB audio randomly. > >> I'm not aware of any relevant changes in the USB or sound subsystems >> between 2.6.39 and 3.0. It's possible that this might be some change >> in general power management, or that some other driver is interfering. > > Hmmmm.... I can't guess the point of problem. But in the fact, > I get noise with 3.x kernel without any error/warning message. I confirmed another USB audio device. Same problem is occured. And I tried 3.2.7 with turning CONFIG_USB_EHCI_TT_NEWSCHED option off by this information; http://ubuntuforums.org/archive/index.php/t-806555.html But it didn't affect anything on 3.2.7.... The cracking noise may be related with disk or network I/O load, but I can't judge and can't find any options to resolve currently. Finally I revert my kernel to 2.6.39, it works well. Thanks, ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user