Am Samstag, 28. April 2012, 13:45:56 schrieb Steffen Müller: > 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. No problem, but we ought to test whether we can make it work with a kernel quirk. Can you please test whether it works with USB_QUIRK_RESET_RESUME in drivers/usb/core/quirks.c ? Regards Oliver -- 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
