From owner-freebsd-questions@freebsd.org Thu Jan 21 14:42:56 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0A158A8B200 for ; Thu, 21 Jan 2016 14:42:56 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (wonkity.com [67.158.26.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "wonkity.com", Issuer "wonkity.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id D064D1BE6 for ; Thu, 21 Jan 2016 14:42:55 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.15.2/8.15.2) with ESMTPS id u0LEgmx8081225 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 21 Jan 2016 07:42:48 -0700 (MST) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.15.2/8.15.2/Submit) with ESMTP id u0LEgmZJ081222; Thu, 21 Jan 2016 07:42:48 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Thu, 21 Jan 2016 07:42:48 -0700 (MST) From: Warren Block To: Malcolm Matalka cc: Polytropon , freebsd-questions@freebsd.org Subject: Re: Console rotates through all tty's after sitting for a bit In-Reply-To: <86k2n3l4t7.fsf@gmail.com> Message-ID: References: <86r3hcl05g.fsf@gmail.com> <20160121034342.8d4b0ccb.freebsd@edvax.de> <86k2n3l4t7.fsf@gmail.com> User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (wonkity.com [127.0.0.1]); Thu, 21 Jan 2016 07:42:48 -0700 (MST) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jan 2016 14:42:56 -0000 On Thu, 21 Jan 2016, Malcolm Matalka wrote: > Polytropon writes: > >> On Wed, 20 Jan 2016 10:11:24 -0700 (MST), Warren Block wrote: >>> On Wed, 20 Jan 2016, Malcolm Matalka wrote: >>> >>>> I installed FreeBSD on a machine (Dell OptiPlex 7010). I'm in the >>>> regular text console and if I just leave it, it starts rotating through >>>> all the tty's rather than going into a screen saver or anything (I have >>>> explicitly set the screen saver to a Blank screen). It did this during >>>> the install process as well. >>>> >>>> Has anyone experienced this and know why? It doesn't seem to >>>> negatively affect anything so far, it's just annoying. >>> >>> Something is hitting the PrintScrn key. >> >> My first thought exactly. :-) >> >> Check the physical keyboard, and if it is a wireless keyboard, >> check possible "offending" other keyboards of that kind, too. > > Interesting. It's a wired, but USB, keyboard. The keyboard itself is > in Swedish but I am using an English (US) keymap. > > I'm curious though, why would this happen after sitting for awhile > instead of all the time? Just random keyboard driver freaking out after > idling for a bit? Could be a driver bug, but that seems unlikely. Could also be hardware causes. kbdmux(4) combines all keyboards, so it could be another keyboard or even a USB device that pretends to be a keyboard. Could be a failing keyboard, a bug in the keyboard firmware, or a cat that likes to play with the PrintScrn button. The sufficiently paranoid might wonder about hardware keyloggers. I'd start by swapping out the keyboard to see whether the problem moves with it. The replacement should be a different brand and model in case it is a firmware bug.