Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262645AbVBEJgh (ORCPT ); Sat, 5 Feb 2005 04:36:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264555AbVBEJgg (ORCPT ); Sat, 5 Feb 2005 04:36:36 -0500 Received: from gprs214-76.eurotel.cz ([160.218.214.76]:24466 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S262645AbVBEJgH (ORCPT ); Sat, 5 Feb 2005 04:36:07 -0500 Date: Sat, 5 Feb 2005 10:35:50 +0100 From: Pavel Machek To: Jon Smirl Cc: ncunningham@linuxmail.org, Carl-Daniel Hailfinger , ACPI List , Linux Kernel Mailing List Subject: Re: [RFC] Reliable video POSTing on resume (was: Re: [ACPI] Samsung P35, S3, black screen (radeon)) Message-ID: <20050205093550.GC1158@elf.ucw.cz> References: <420217DB.709@gmx.net> <4202A972.1070003@gmx.net> <20050203225410.GB1110@elf.ucw.cz> <1107474198.5727.9.camel@desktop.cunninghams> <4202DF7B.2000506@gmx.net> <1107485504.5727.35.camel@desktop.cunninghams> <9e4733910502032318460f2c0c@mail.gmail.com> <20050204074454.GB1086@elf.ucw.cz> <9e473391050204093837bc50d3@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9e473391050204093837bc50d3@mail.gmail.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1272 Lines: 27 Hi! > > We already try to do that, but it hangs on 70% of machines. See > > Documentation/power/video.txt. > > We know that all of these ROMs are run at power on so they have to > work. This implies that there must be something wrong with the > environment the ROM are being run in. Video ROMs make calls into the > INT vectors of the system BIOS. If these haven't been set up yet > running the VBIOS is sure to hang. Has someone with ROM source and > the appropriate debugging tools tried to debug one of these hangs? > Alternatively code could be added to wakeup.S to try and set these up > or dump the ones that are there and see if they are sane. Rumors say that notebooks no longer have video bios at C000h:0; rumors say that video BIOS on notebooks is simply integrated into main system BIOS. I personaly do not know if rumors are true, but PCs are ugly machines.... Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl! - 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/