Oh man! After look and try many usr relevant settings I found the malfactor: tlp usb autosuspend settings. I use tlp (energy-saving tools for thinkpad laptops) and they autosuspend usb devices by default. Now I have blacklisted my midi keyboard an all is good. I can reproduce the problem this way. Seems so that the midi keyboard doesn't wake up if it once sleeping. For all with similar problems: edit /etc/default/tlp and set USB_BLACKLIST="<device id from usbls>" or disable usb autosuspend entirely with USB_AUTOSUSPEND=0 thanks and sorry for the bother. steffen Am Freitag, 27. April 2012, 11:26:12 schrieb Alan Stern: > On Fri, 27 Apr 2012, Jiri Slaby wrote: > > On 04/27/2012 09:37 AM, Steffen M�ller wrote: > > >> [ 224.418062] usb 1-1.3: USB disconnect, device number 6 [ > > >> 227.662396] usb 1-1.3: new full-speed USB device number 7 using > > >> ehci_hcd [ 227.749541] usb 1-1.3: New USB device found, > > >> idVendor=0763, idProduct=0192 [ 227.749550] usb 1-1.3: New USB > > >> device strings: Mfr=1, Product=2, SerialNumber=0 [ 227.749556] > > >> usb 1-1.3: Product: USB Keystation 88es [ 227.749560] usb 1-1.3: > > >> Manufacturer: M-Audio [ 229.750236] ALSA midi.c:214 urb status > > >> -32 [ 229.750700] ALSA midi.c:214 urb status -32 [ 229.750911] > > >> ALSA midi.c:214 urb status -32 [ 229.751175] ALSA midi.c:214 urb > > >> status -32 [ 229.751413] ALSA midi.c:214 urb status -32 [ > > >> 229.751659] ALSA midi.c:214 urb status -32 [ 229.751910] ALSA > > >> midi.c:214 urb status -32 [ 229.752210] ALSA midi.c:214 urb > > >> status -32 [ 229.752459] ALSA midi.c:214 urb status -32 [ > > >> 229.752662] ALSA midi.c:214 urb status -32 > > > > Hmm... I suspect some USB patches added in 3.3.3... Alan, Greg, any ideas? > > > > 3.3.2 is reported to work. > > No ideas. It would be good to see a usbmon trace, with as many other > USB devices unplugged as possible. Even better would be to see also a > second usbmon trace from a working kernel. > > 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
