From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: S3 works on Dell i2650, but no display Date: Wed, 28 May 2003 13:11:01 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030528111100.GA342@elf.ucw.cz> References: <20030524155445.GA262@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Bjorn Wesen Cc: Luke Hammer , ACPI mailing list List-Id: linux-acpi@vger.kernel.org Hi! > > > When I tried to resume however, I found that the console display > > >didn't come back on - though I knew the machine was responsive because > > >I could type commands > > > You might need to get datasheet to your videocard and write specific > > support. Also try lspci before and after suspend etc. [But don't > > expect this to be easy]. > > Isn't this a general problem on all notebooks - even if you know everything > about the videocard used, might not the notebook use a completely different > mechanism for actually turning on and off the display (with >backlight etc) ? Okay, so you need videocard datasheet *and* notebook datasheet :-((((. > I remember we had a similar discussion a while ago when I tried to get S3 > working on my Acer notebook and the only way to enable that backlight was > through the bios lcall. Then 2.5.69 came, S3 broke again on the Acer, and I > haven't tested anything more :) Can you find out what patch exactly killed it? > What is done in the other notebooks that actually have S3 working - do their > screens default to backlight-on when the hardware gets powered on, do they > use the lcall, or is there some other magic possible ? Can we systematically > solve that proble I mean ? On HP omnibook, video is in state (pretty much exactly) it was after S3. On toshiba, it is in text-mode vga with backlight on. On "hobit" it needs lcall to initialize it through bios. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] ------------------------------------------------------- This SF.net email is sponsored by: ObjectStore. If flattening out C++ or Java code to make your application fit in a relational database is painful, don't do it! Check out ObjectStore. Now part of Progress Software. http://www.objectstore.net/sourceforge