On Wed, 19 Mar 2014, Mike Mitchell wrote: > Please help me narrow down this perplexing mystery: > 1. USB Mic device takes ~45 minutes to recognize after warm start. > 2. Same device disconnect sporadically, usually about an hour after it > was last used. > 3. Otherwise device works fine for days on end. > > Host: Intel NUC dccp847dye > Device: CAD U7 Mic > Kernel:3.5.0-47-generic #71~precise1-Ubuntu SMP Wed Feb 19 22:05:41 > UTC 2014 i686 i686 i386 GNU/Linux > > USBMon trap of first activity when device is connected: This trace doesn't show a 45-minute delay. It also doesn't show a disconnect. Everything appears to be working normally. The 3.5 kernel is getting old. Can you try something more recent, such as 3.13? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html