From owner-freebsd-usb@FreeBSD.ORG Fri Jan 21 18:23:40 2011 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 1233) id 769861065670; Fri, 21 Jan 2011 18:23:40 +0000 (UTC) Date: Fri, 21 Jan 2011 18:23:40 +0000 From: Alexander Best To: freebsd-usb@freebsd.org Message-ID: <20110121182340.GA80488@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: Problem with mouse during high CPU load X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jan 2011 18:23:40 -0000 hi there, i've reported this issue quite a while ago [1], but back then nobody was able to help me. i have an issue with my usb mouse. when there's a high CPU load it produces random mouse clicks. this doesn't happen on other OSes. i've attached a different usb mouse to my freebsd box and i could't observe the same behavior. so it seems this problem is only related to specific mice. back then hps@ guessed that my mouse requires a certain polling rate from the host. during high cpu load the host couldn't keep up the polling rate and thus the mouse starts producing wrong output. i've uploaded i video [2], so you can oberserve what happens exactly. please note that during the whole video i didn't touch a single button, but only moved my mouse along the x and y axis. cheers. alex [1] http://www.mail-archive.com/freebsd-usb@freebsd.org/msg05766.html [2] http://vimeo.com/19037272 -- a13x