Re: [opensuse-factory] Re: usb midi keyboard broken [3.3.3 regression] [SOLUTION]

Oliver Neukum
2012-04-28T15:34:33Z

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