Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965835AbXBOKpX (ORCPT ); Thu, 15 Feb 2007 05:45:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965836AbXBOKpW (ORCPT ); Thu, 15 Feb 2007 05:45:22 -0500 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:36159 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965835AbXBOKpV (ORCPT ); Thu, 15 Feb 2007 05:45:21 -0500 Date: Thu, 15 Feb 2007 11:45:02 +0100 From: Pavel Machek To: Jan Dittmer Cc: stelian@popies.net, linux-acpi@vger.kernel.org, linux-pm@osdl.org, adaplas@pol.net, dawes@xfree86.org, Linux kernel Subject: Re: [linux-pm] Suspend to RAM, Sony Vaio PCG-SRX51P, lcd stays off Message-ID: <20070215104502.GO26240@elf.ucw.cz> References: <45D43489.3060409@l4x.org> <20070215103639.GB27338@elf.ucw.cz> <45D438F2.2040607@l4x.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <45D438F2.2040607@l4x.org> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2636 Lines: 61 Hi! > >> I own an older Sony Vaio SRX51P, European Model, P3 based. s2ram > >> identifies it with > >> > >> sys_vendor = "Sony Corporation " > >> sys_product = "PCG-SRX51P(DE) " > >> sys_version = "01 " > >> bios_version = "R0232U2" > >> > >> Suspend to RAM by using "s2ram -v -m -f" actually works and the > >> laptop comes back to life, is accessible by network, etc. kudos > >> so far. > >> The only but serious problem is, that the lcd stays off after > >> resume. No matter what kind of options for s2ram I try, if I disable > > > > Is the _lcd_ off or the _backlight_ off? Use bright flashlight to > > tell. > > The lcd. If you press the lid button you get the same effect (but you > cannot use it to turn the lcd on again :-(( ). But I'll doublecheck with > a flashlight nevertheless. If lid button breaks the lcd, even in grub boot loader... then I'd call your machine broken hardware, complain to the manufacturer. (Are you at latest BIOS?) > >> framebuffer or suspend from X, the lcd always stays off. Only > >> a reboot fixes this. Note that the X driver also cannot dis-/enable > >> the lcd (xset dpms force off). It always stays lit. I also tried > >> with i810switch, but that also does not affect the lcd. > >> spicctrl -b42 neither. > >> Latest kernel I tested is 2.6.20-git11 from today. > >> > >> So has anyone of you suspend, acpi, sonypi, fb people an idea how to fix > >> this? I suspect one has to call some magic ACPI method upon resume? What > >> other kind of information would be needed to debug this? Anything more > >> to try? Are there some sony people here listening who can fix this? > > > > sonypi people actually might know how to help... > > > >> 00:02.0 VGA compatible controller: Intel Corporation 82815 CGC > > [Chipset Graphics Controller] (rev 11) > > > > Wait a moment, did not Intel release nice, commented, GPLed sources > > for their graphics cards somewhere? That might help. > > URL? But I suspect the lcd on/off is controlled by some embedded controller > or such (reachable via acpi, at least I've an EC0 in /proc/acpi/). Google a bit, it was a _big_ announcement. Of course it is _possible_ EC is responsible, but I don't quite think so. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/