From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Zick" Subject: Re: [parisc-linux] Get your Matrox PCI cards out of the basement ... Date: Thu, 3 Jun 2004 11:07:32 -0500 Message-ID: <200406031107.32388.mszick@goquest.com> References: <20040602221734.GA26176@solo.franken.de> <200406030835.25787.mszick@goquest.com> <20040603151347.GB23488@sal.ucc.ie> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Cc: parisc-linux@lists.parisc-linux.org To: "M. Grabert" Return-Path: In-Reply-To: <20040603151347.GB23488@sal.ucc.ie> List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: parisc-linux-bounces@lists.parisc-linux.org On Thu June 3 2004 10:13, you wrote: > On Thu, Jun 03, 2004 at 08:35:25AM -0500, Michael S. Zick wrote: > > On Wed June 2 2004 22:23, M. Grabert wrote: > > SGI Multisync Monitor (NOT sync-on-green capable AFAIK, works fine > with the Voodoo2 and also with PCs, with the 'normal' VGA cable). General Rule - Anything recent enough to call itself "multisync" can sense and use "sync-on-green" (My limited experience is that anything properly named "multisync" with an SVGA connector will accept any of the three.) > > This monitor doesn't display a "out-of-sync" (you will just hear > a clicking noise), so just to get sure I also connected it to a > analogue SVGA LCD display, that tells you if it is out-of-sync. Ah... I had that sort of monitor - the noise is relays used to select sync ranges. So the monitor is sensing sync pulses (however they get there) but can't find a matching range (or the pulses aren't stable enough). So suspect software setup of the card first - Sounds like you have (unusable) sync to the monitor. > > BTW, I thought that the 'seperate' is actually using the normal > VGA cable signalling, but seperates each signal/wire physically and > uses BNC connectors. I don't have any handy reference for VGA cable/connector - SVGA connector has them all. > Eg. I have a PC MultiSync (not here in Ireland) that accepts two > inputs, VGA connector and 5 BNC. If you ever get the chance - disconnect the H & V BNCs - it will probably still work (VGA, 5-BNC and 3-BNC) > Yeah, I know. I had a SUN Monitor (using sync-on-green), for which > I built a VGA-to-SyncOnGreen adapter. That was pretty easy to do. > > Unfortunately the old HP monitors/graphics cards are using a much more > complicated, proprietary sync-on-green signalling (and voltage) > much unlike the SUNs, so building a VGA converter is much more > complicated. IIRC. (I remember that I found a schematic for those > HP VGA converters some time ago and I was scared). I didn't know that - thanks for the info. I have driven several different Sony multisync monitors with the 720 (and a custom - wire only - cable) - they survived the experience; but based on the above - it might be good that I didn't do it for very long. > > However Milleniums have (undocumented) hardware SyncOnGreen support, > and most OSS drivers (eg. XFree86) can enable it, but it is > disabled by default, at least on the PC version (which I have). Those messages about not getting the cards PLLs to lock are more likely to be the lead to getting a picture - but something else might not be getting its setup also. Mike _______________________________________________ parisc-linux mailing list parisc-linux@lists.parisc-linux.org http://lists.parisc-linux.org/mailman/listinfo/parisc-linux