From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sven Luther Subject: Re: [Linux-fbdev-devel] [PATCH]: EDID parser Date: Thu, 3 Apr 2003 15:11:47 +0200 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <20030403131147.GB7961@iliana> References: <4D87862358@vcnet.vc.cvut.cz> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <4D87862358@vcnet.vc.cvut.cz> List-Id: Cc: Sven Luther , James Simmons , Linux Fbdev development list , linux-kernel@vger.kernel.org On Thu, Apr 03, 2003 at 03:05:54PM +0100, Petr Vandrovec wrote: > On 3 Apr 03 at 14:38, Sven Luther wrote: > > On Thu, Apr 03, 2003 at 12:05:13PM +0100, Petr Vandrovec wrote: > > > No. With matroxfb, you have two framebuffer devices, /dev/fb0 & /dev/fb1, > > > which can be connected to any of three outputs: analog primary, analog > > > secondary and DVI. Analog primary & DVI share same pair of DDC cables, > > > and analog secondary has its own... And user can interconnect fb* with > > > outputs in almost any way he wants, as long as hardware supports it. > > > > Mmm, i have not been into fbdev much lately, but for my X devel work, i > > believe thta it is a good thing to separate the framebuffer issues from > > the output issues, and thus, for the card i have at least, have one > > function where the per chip things are done (memory detection, bypass > > unit handling, framebuffer and memory management) and another set of > > functions which would be head, that is output, specific. This way, you > > would configure the /dev/fbx and when the user which to use this or that > > output, the DDC will be connected to the output, not the framebuffer. > > This seems a reasonable way of doing this and should solve your problem, > > no ? > > Of course. But because of James decided that fbdev layer will automatically > choose appropriate resolution only from xres/yres, I need to have monitor > capabilities at the time upper layer asks to set videomode on /dev/fbx... > And it just sets it on /dev/fbx, leaving out both VTs (so I cannot remember > what mode was probed on each VT anymore) and outputs. Mmm, and at what time is the fbdev->output mapping done ? Friendly, Sven Luther