From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756639Ab3AICpa (ORCPT ); Tue, 8 Jan 2013 21:45:30 -0500 Received: from magic.merlins.org ([209.81.13.136]:40249 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755306Ab3AICp3 (ORCPT ); Tue, 8 Jan 2013 21:45:29 -0500 Date: Tue, 8 Jan 2013 18:45:28 -0800 From: Marc MERLIN To: Linux Kernel mailing List Subject: Re: Supporting SYSRQ on broken laptops like the thinkpad T530 Message-ID: <20130109024528.GR2044@merlins.org> References: <20130108230954.GN2044@merlins.org> <20130109023643.GA7066@mobil.systemanalysen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20130109023643.GA7066@mobil.systemanalysen.net> X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ X-Operating-System: Proudly running Linux 3.1.5-core2-volpreempt-noide-hm64-20111218/Debian squeeze/sid X-Mailer: Some Outlooks can't quote properly without this header User-Agent: Mutt/1.5.13 (2006-08-11) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: marc@merlins.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 09, 2013 at 03:36:44AM +0100, Roland Eggner wrote: > On 2013-01-08 Tuesday at 15:09 -0800 Marc MERLIN wrote: > > In its infinite wisdom, lenovo has removed the sysrq key on the latest > > thinkpads, and replaced it with a stupid ALT+FN+S key combination, which > > doesn't really work for doing sysrq from the console (nor do I know how the > > genius who did that intended for SYSRQ-S to work). > > http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T430-s-T530-Where-are-the-shortcut-function-keys-break-Pause-etc/ta-p/781749 > > > > I realize that one solution is to throw my laptop window at a suitable high > > floorand replace it with one from a vendor that doesn't randomly remove keys > > from the keyboard. > > That said, I was wondering if there were other solutions, especially > > considering that thinkpads used to be the better linux laptops. > > My Dell “Precision M4500” notebook suffers similar (same?) problem. So far > I could not find a solution better than this: e.g. Alt-Fn-SysRq-s > > press and hold Alt > press and hold Fn > press and leave F10|SysRq > leave Fn > press and leave s > leave Alt Holy crap. That works for me too. If only lenovo could have been bothered to document it properly. It's still a pitty to type and remmember the exact hold and release key sequences, but it's better than nothing. Thanks much. > Several months ago a LKML user claimed, his cat had managed to press > Alt-Fn-SysRq-c on his Dell Latitude notebook with similar keyboard, and provided > photos showing the kernel crash message ;) Yeah, but my cat is not nearly smart enough for that :) Thanks for your help again, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/