From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261567AbVHBOjY (ORCPT ); Tue, 2 Aug 2005 10:39:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261528AbVHBOHC (ORCPT ); Tue, 2 Aug 2005 10:07:02 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:42926 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S261534AbVHBOFw (ORCPT ); Tue, 2 Aug 2005 10:05:52 -0400 Date: Tue, 2 Aug 2005 16:05:43 +0200 From: Pavel Machek To: Gene Pavlovsky Cc: Linux Kernel Subject: Re: RFE: console_blank_hook that calls userspace helper Message-ID: <20050802140543.GA2465@atrey.karlin.mff.cuni.cz> References: <1122891737.42edf7d9a402a@www.bluebottle.com> <20050802110418.GB1390@elf.ucw.cz> <42EF7CB7.5090403@bluebottle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42EF7CB7.5090403@bluebottle.com> User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > I can try to do this, but it will have to wait, I've got too much work now. > Don't you think the userspace solution deserves a try? Well, how do you unblank when something bad happens (oops,panic?). Blanking should really be done from kernel. Pavel > >>http://bugzilla.kernel.org/show_bug.cgi?id=4767: > >> > >>Bugzilla Bug 4767 RFE: console_blank_hook that can call userspace > >>program > >>Submitter: heilong@bluebottle.com (Eugene Pavlovsky) > >> > >>I think it'd be very good to have a console_blank_hook handler that > >>would call a > >>userspace program/script/generate hotplug event whatever. Currently, > >>the console > >>can only be blanked using APM, so no options exist for people using > >>ACPI. I've > >>got a Radeon graphics chip on my laptop, and the LCD backlight can be > >>controlled > >>(on/off) using radeontool. If there was a userspace callback > >>interface > >>to > >>console blanking, I would just make a callback script that calls > >>"radeontool > >>light off" on blank and "radeontool light on" on unblank - really > >>easy. I think > >>this userspace console_blank_hook handler is very simple to put into > >>kernel, but > >>I'm not a kernel developer myself, so wouldn't risk sending any > >>patches (that > >>call system("some_script")), because I probably won't make things as > >>they should > >>be in the kernel. > > > > > > Radeonfb should blank console automatically, without userspace > > helper. Send a patch to do that ;-). -- Boycott Kodak -- for their patent abuse against Java.