linux-kernel - USB keyboard occasional key stuck

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Message-ID: <CAMVG2ss9nA4zcOT3c47EwEMrR7Z_gAQU-HTYGjdWcdYzihSnbg@mail.gmail.com>
Date:	Mon, 17 Feb 2014 21:23:25 +0800
From:	Daniel J Blueman <daniel@...ra.org>
To:	linux-usb@...r.kernel.org, linux-input@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: USB keyboard occasional key stuck

Across 5+ years of kernels, I've been seeing occasional (1-2 times per
day) key-stuck issues where eg a fn+delete combo repeats delete until
I press delete again. I've seen this happen with fn+ctrl+left, leaving
left held and likewise with right.

This has occurred on Apple laptops, external USB keyboards and Dell
laptops, so seems like a linux USB input issue, as I haven't seen
occur on Windows or MacOS on the same hardware.

It seems a good move for me to rebuild and run a kernel with some USB
HID instrumentation to locate this issue over time. Without apriori
knowledge of the linux USB input stack, what is a good initial
approach?

Thanks,
  Daniel
-- 
Daniel J Blueman
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