From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: [RFC] Reliable video POSTing on resume (was: Re: Samsung P35, S3, black screen (radeon)) Date: Fri, 4 Feb 2005 12:38:21 -0500 Message-ID: <9e473391050204093837bc50d3@mail.gmail.com> References: <20050122134205.GA9354@wsc-gmbh.de> <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> Reply-To: Jon Smirl Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit In-Reply-To: <20050204074454.GB1086-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Pavel Machek Cc: ncunningham-jjFNsPSvq+iXDw4h08c5KA@public.gmane.org, Carl-Daniel Hailfinger , ACPI List , Linux Kernel Mailing List List-Id: linux-acpi@vger.kernel.org On Fri, 4 Feb 2005 08:44:54 +0100, Pavel Machek wrote: > 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. -- Jon Smirl jonsmirl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl