Return-Path: Date: Tue, 1 May 2012 07:37:11 -0600 From: Jonathan Corbet To: LKML Cc: linux-bluetooth@vger.kernel.org Subject: Weird bluetooth keyboard regression - just me? Message-ID: <20120501073711.028d31d6@lwn.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Life has not been conducive to frivolities like trying new kernels, but I finally gave 3.4-rc5 a go yesterday. I'm seeing some decidedly weird keyboard behavior; it seems surprising that nobody else has complained. I have a logitech Dinovo Edge bluetooth keyboard that I've used for years. With 3.4 kernels, the keyboard generates no input until I've banged on it for a couple of seconds. If I continually hit characters, they make it through; as soon as I stop for even a brief period (even somebody as verbose as me has to come up for air occasionally), it goes back to sleep. It's almost as if some sort of aggressive power management were knocking things out at every chance. Wired USB keyboards do not show this behavior. Neither does my bluetooth mouse (which is on a different adapter). 3.3 works, 3.4-rc1 appears not to. This should be a straightforward bisection and I'm happy to begin that process, but I thought I'd ask if anybody had any ideas first...? Thanks, jon