From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kronos Subject: Re: [PATCH] radeonfb: DDC i2c fix Date: Fri, 11 Mar 2005 21:13:26 +0100 Message-ID: <20050311201326.GA7379@dreamland.darkstar.lan> References: <1110519970.5751.17.camel@gaston> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1D9qVD-00039r-Vr for linux-fbdev-devel@lists.sourceforge.net; Fri, 11 Mar 2005 12:12:55 -0800 Received: from mail-relay-4.tiscali.it ([213.205.33.44]) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.41) id 1D9qVB-0001Ac-Kq for linux-fbdev-devel@lists.sourceforge.net; Fri, 11 Mar 2005 12:12:55 -0800 Content-Disposition: inline In-Reply-To: <1110519970.5751.17.camel@gaston> Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev-devel@lists.sourceforge.net Cc: Andrew Morton , Benjamin Herrenschmidt Il Fri, Mar 11, 2005 at 04:46:10PM +1100, Benjamin Herrenschmidt ha scritto: > The radeonfb code for DDC probing (like it's X.org counterpart) uses to > leave the DDC clock & data lines asserted after the probing is complete. > This causes problems with some Apple monitors like the new Cinema HD > 23", who will turn themselves off when that happens. This fixes it. Fix is correct, but comment is not ;) After the loop SCL and SDA are left low. Pulling them high puts the I2C bus in the stop condition. Luca -- Home: http://kronoz.cjb.net Inquietudine sintetica Solo, davanti all'ignoto Tienimi stretto a te ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click