From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 20006] powerpc64: Black screen using RandR12 Date: Sat, 28 Feb 2009 07:30:04 -0800 (PST) Message-ID: <20090228153004.7FBF413005C@annarchy.freedesktop.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org http://bugs.freedesktop.org/show_bug.cgi?id=20006 bmaass changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #45 from bmaass 2009-02-28 07:30:03 PST --- (In reply to comment #44) > Thanks for the effort, I wasn't expecting you to have to find a copy :) No problem, I was planning to do it some day so I could replay some of my old games. :-) > According to http://en.wikipedia.org/wiki/Nvidia_Quadro the fx4500 (the Apple > option for 2 x dual-link) is the same silicon as the 7800gtx, which according > to http://www.nvidia.com/object/extreme_hd_gpu.html is only 1 x dual-link; the > difference is normally whether the board manufacturer has connected up the > traces for the second link pins, and it seems your board manufacturer did, but > then crippled it in the bios image. We can't really ignore the image though, > as there's going to be a majority of cases where the extra link isn't wired up. > > As for using 2 x dual-link, I don't know :) It's certainly possible that the > card isn't clocked high enough for some part to have the bandwidth to drive two > such displays, or (less likely) that the board is populated with some cheaper > components that can't handle the additional electrical demands. Assuming you > don't have access to another 30" :) we're probably not going to find out. > > Unless you can argue a good case for it, I think I'll leave things as they are > -- an option for "let me do 2 x dual link on a card I bought thinking it > couldn't" seems like something with very low demand (I guess I could add a pci > id based override for this Apple card, but that still doesn't resolve whether > the hardware can run 2 x dual-link simultaneously). There is some oddity about an Apple S-Video adapter only working on DVI-I-0 on these cards, I think, so there actually may be cases where people would want to drive their 30" on DVI-I-1. But considering that there probably are less than a 10000 of these machine-card combinations out there, 99 per cent of which probably will never run anything but OSX, the effort seems wasted. Nevertheless, thanks a bunch for fixing this so promptly, I'm a happier person now. ;-) -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.