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Date: Sat, 28 Apr 2012 17:30:04 +0200 From: Oliver Neukum <oliver@...kum.org> To: Steffen Müller <steffen.mueller@...io-frei.de> Cc: opensuse-factory@...nsuse.org, Alan Stern <stern@...land.harvard.edu>, Jiri Slaby <jslaby@...e.cz>, stable@...nel.org, Greg KH <greg@...ah.com>, USB list <linux-usb@...r.kernel.org>, Linux kernel mailing list <linux-kernel@...r.kernel.org> Subject: Re: [opensuse-factory] Re: usb midi keyboard broken [3.3.3 regression] [SOLUTION] 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-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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