From mboxrd@z Thu Jan 1 00:00:00 1970 From: Owen Cliffe Subject: Re: S3 works on Dell i2650, but no display Date: 28 May 2003 13:25:00 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <1054121096.4168.72.camel@noodle> References: <20030524155445.GA262@elf.ucw.cz> <20030528111100.GA342@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20030528111100.GA342-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: ACPI mailing list List-Id: linux-acpi@vger.kernel.org The same behaviour manifests itself on the Dell lattitude D600, as far as I can see the only common components of the i2650 and the D600 machines are the dell bioses, the graphics chipsets are different (2650 has Geforce2 D600 has a radeon 9000) this could just be a coincidence... With DSDTs there seem to be very few differences between the p4 notebooks and the centroni ones, and they have of course exhibited the same bugs. owen On Wed, 2003-05-28 at 13:11, Pavel Machek wrote: > 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 -- --------------------------------------------------------------------- owen cliffe (postgraduate) Email: occ-sBK8fsN9CKk2EctHIo1CcQ@public.gmane.org Department of Computer Science Web: http://www.cs.bath.ac.uk/~occ Univ. Bath, Bath, England BA2 7AY Tel: (+44) 1225 386183 ------------------------------------------------------- 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