From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Fenzi Subject: Re: Re: Compaq Presario 2800T Date: Wed, 7 Aug 2002 17:17:19 -0600 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20020807231722.6087.qmail@scrye.com> References: <20020807224648.5744.qmail@scrye.com> <200208072257.SAA04328@magic-pi-ball.mit.edu> <20020807230502.GA3563@dutidad.twi.tudelft.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20020807230502.GA3563-V1rPnKwUOrA59+mn7qD7y50iERQUc4G+@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: "Charl P. Botha" Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >>>>> "Charl" == Charl P Botha writes: Charl> On Wed, Aug 07, 2002 at 06:57:25PM -0400, Sourav K Mandal Charl> wrote: >> > The Fn f7 (dim) and Fn-f8 (brighten) and Fn-F4 (monitor) all work >> fine > when I first boot up. They also work fine if I start X with >> no DRM. If > I start X with drm, then they stop working and won't >> work again until > I reboot. >> >> Exactly what I'm getting, but with stock DRI modules. Charl> Just for clarity, on my laptop (which is not a Compaq, but a Charl> no-namer with Radeon Mobility 7500 64MB) the bright/dim keys Charl> always work, DRI or no DRI. so it might be a bios diffrence... ? >> My (layman's) guess is that it has something to do with the GPU's >> power state. The BIOS won't shut down the LCD until it's satisfied >> with the Radeon's power state; once DRM is used the Radeon cannot >> enter an acceptable power state. Charl> If you experience this with stock XFree86 DRI as well, I would Charl> post a report on xpert-72qDnkntNoRAfugRpC6u6w@public.gmane.org as well. One of the ATI Charl> engineers is spending a lot of time with these drivers and Charl> might have something to add to the equation. ok. I will try and test it later tonight and see. I can't remember if I saw it with stock X/drm or not. >> This is the inverse of the DRI-on-resume problem, that once the >> Radeon is shutdown w/o reset, the DRM "parts" don't wake up >> properoly. Charl> The DRM wasn't designed for stopping/starting in mid-stride, Charl> which is why we've made it so that it completely Charl> initialises/de-initialises during VT-switch. If certain Charl> remaining technical problems can be sorted out, this might even Charl> make XFree86 4.3.0, at least until a more generic solution can Charl> be implemented. excellent. Charl> Good luck, Charl kevin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) Comment: Processed by Mailcrypt 3.5.6 and Gnu Privacy Guard iD8DBQE9UaqC3imCezTjY0ERAgHVAJ9mLzQXUEQ893HzqDAbipwoLnUbzACeKd+B ofgte2+w7GMrGw8cLlTVdA8= =gczI -----END PGP SIGNATURE----- ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf