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Date: Thu, 24 May 2012 16:36:56 -0400 From: Josh Boyer <jwboyer@...hat.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Alan Stern <stern@...land.harvard.edu> Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: USB device PM oddity in 3.5 I'm testing Linus' tree as the merge window happens, and I've hit an issue with what I believe is USB device power management (or something) that is causing my mouse and keyboard to become unresponsive. After a very short time of non-use, either device will cut out. I can move the mouse around but it doesn't relay to the screen and I noticed this is because the laser is turned off. If I click a button on it, it will turn back on and function again until a small period of non-use. The keyboard exhibits similar behavior, "ignoring" the first few key strokes until it wakes back up. I found this thread: http://thread.gmane.org/gmane.linux.usb.general/64292 and http://marc.info/?t=133552726500001&r=1&w=2 which have similar symptoms, but the kernels I'm using have the subsequent patches applied. I'm doing a git bisect at the moment, with 72c04af as the starting good commit and 61011677 as the first bad. I'll let you know what comes of this, but I thought I'd mail about it now in case anyone has any ideas. josh -- 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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