on 27/9/01 19:55, Mark Benson at [EMAIL PROTECTED] wrote: <snip> > D-SUB (the BNC carries no PNP signal for obvious reasons...). Since I've > had the D-SUB connector on my G3 it refuses to let me chooses a > resolution above 1280x1024, the max resolution of my Monitor according > to Belinea (I usually have it at 1600x1200 @ 75Hz and it's fine). Could > OS X and/or my G3 be recognising the PNP signal from a PC monitor? This > monitor is not - to my knowledge - supported by Apple...
Yep, there's probably a pretty good chance Plug-and-Pray is wreaking havoc on your resolution choices. I have yet to determine if OS X 10.1 still restricts your monitor's resolution choices to only that returned by your monitor but 10.0.4 was ornery and only allowed you to select the PNP info. If PNP is causing you problems you can grab a so-called SVGA "port protector" ($5) and pull four of the pins that pass on the PNP info. I now have my 17" running at 1152*870 under OS X as a generic VGA monitor (formerly a 17" KDS Avitron AV7TF that sent its incomplete PNP info to the Mac... awesome monitor). BTW: here's my solution (as e-mailed to this list a few months back): on 18/6/01 13:10, Eric D. at [EMAIL PROTECTED] wrote: > I solved the screen size problem I (and others) had with OS 9.1 and OS X. I > can now use my 17" at 1152*870 with both OS X 10.0.3 and 9.1. The solution > wasn't *ideal* but it was $5 and worked without a hitch. > > Posted by me at MacOSX.com (06-17-2001 02:39 PM): > > I actually have a (potential) $5 CDN ($3 US) solution to the problem of > unwanted plug-and-pray signals [aka DDC]. For $5.75 CDN I picked up a (new) > male-female SVGA adapter (0.5 cm thick and the same width as the SVGA > port... small [you can't even see that it's between the cable and the > port]!!!) [aka a SVGA port protector] from a local used computer parts > store. What I'm going to do is pull the pins mentioned in an earlier post in > the forum [G-listers see below] and see if that'll leave OS 9.1 and OS X > 10.0.3 in the dark as to the identity of my monitor. > > A male-female SVGA adapter is seemingly redundant, but apparently it is > intended to protect a port from plug-in/pull-out damage of frequently > replacing monitors. > > ------------------------------------------------------------------------ > Posted by davidbrit2 (06-17-2001 04:06 PM) [this was a comment by another > person to an earlier part of this thread at MacOSX.com] > > That's more or less what I did. Pulling out the pins works just fine, but > make sure that you remove the pins I mentioned earlier, or you'll ruin the > video signal. I'm actually using this kind of setup right now. > ------------------------------------------------------------------------ > > Posted by me (06-17-2001 06:21 PM): > > Ok, I pulled pins 4, 11, 12 and 15 from my SVGA male-to-female adapter [SVGA > port protector] and succeeded!!! My monitor is now simply recognised as a > VGA monitor and I can chose whatever screen size I want within the > limitations of the video card (ATI RAGE 128 16 MB). It is a simple solution > and cheap without the problems of ghosting associated with extension cables. > I used needle-nosed pliers to pull out the pins and it took a little effort. > If your adapter is anything like mine it's a mold with little pins (about > the length and size of a watch band pin) that have to be pulled out as a > whole. You should be able to grasp the whole pin (on the pin side), clamp > down without harming those around it, and pull the pin out (both the pin-out > and pin-in side) with a solid pull (using leverage is a good idea). If you > move the other pins a bit they shouldn't be harmed unless you knock them all > out of alignment. > > PS From an Apple PDF on a motherboard I got the following for the pins: > > Pin�Signal�Name��Discription > �4��SENSE0�������SVGA�monitor�sense�signal�0 > 11��SENSE3�������SVGA�monitor�sense�signal�3 > 12��SENSE2�(SDA)�SVGA�monitor�sense�signal�2�(DCC�data) > 15��SENSE1�(SCL)�SVGA�monitor�sense�signal�1�(DCC�clock) > > Please note that DCC is what was in the PDF. I suspect that it should refer > to DDC. PDF: LPX-40_Dev_Note.pdf > Developer Note, Apple Logic Board Design LPX-40 (seems related to the PPC > 6400) > > Eric. > > on 6/5/01 7:01 PM, Eric D. at [EMAIL PROTECTED] wrote: > >> Hello ya'll, I've got a bit of a problem with my B&W G3/450, Trinitron 17" >> monitor and Mac OS 9.1 and OS X 10.0.x. >> >> I normally run in 1152*870 @ 75 Hz but am limited to 1024*768 @ 85 Hz or >> 1280*1024 @ 60 Hz in 9.1 and OS X 10.0.x. The monitor sends back only >> 1024*768 and 1280*1024 in its plug-and-play info to the computer (this is >> how your OS & computer know what monitor is hooked up to your computer). >> OpenGL 1.1.2 & OS 9.0.4 fortunately ignored this info so I could use >> control-click in the control strip to select other resolutions. In 9.1 (Open >> GL 1.2.1) and OS X 10.0.x Apple uses this info EXCLUSIVELY and does not >> allow you to bypass it (control clicking on control strip no longer works >> for my monitor). Believe it or not, but 1152*870 is quite a bit larger than >> 1024*768 for every-day tasks!!! >> >> Anyway, my problem is that in 9.1 and OS X 10.0.x Apple no longer allows you >> to bypass the default screen sizes. There is no reason for me to run 9.1 >> (which sent my computer into a never-ending restart loop anyway) *yet* so I >> can run 9.0.4 and 1152*870 happily. However, in OS X there is no choice: I >> either am driven nuts by the limitations of 1024*768 or else don't use OS X >> *at all* (1280*1024 @ 60 Hz is not an option as my eyes can easily detect >> the refresh and it gives me a headache FAST). In the OS X public beta I >> could customise the Display panel to my heart's content! >> >> I HAVE TRIED EVERYTHING I COULD THINK OF. I've de-selected "Show modes >> recommended by Display" in the Display panel in OS X (and, done the >> equivalent in Monitors). I've tried editing the .pref files directly, tried >> booting with the monitor unplugged and then plugging it in, etc (this all >> under OS X... OS 9.1 isn't a concern to me so I haven't experimented with >> it). >> >> HAS ANYONE FOUND A WAY TO DISPLAY ALL RESOLUTIONS A CARD SUPPORTS?????????? >> (like OS X public beta) >> >> I suspect I may have to get a really short SVGA extension cord, pull the >> pins (I don't want to void my monitor's warrantee) that transfer the >> plug-and-pray info from the monitor to the video card, and plug that in in >> between the monitor and the video card. >> >> As for OS 9.1: there are numerous solutions to the screen resolution >> problem. SwitchRes 2.4, SuperRes, resolute, multi-resolutions-1.2, etc. They >> all allow you to select the desired screen size, but, as with anything that >> isn't Apple, it adds an element of instability to my system. If you need one >> (or all) of those e-mail me. >> >> PS If any of you are interested in finding out what plug-and-pray >> information your monitor sends back to your computer download Simple DDC >> from www.griffintechnology.com (makers of iMate ADB-USB etc.). >> >> Thanks for the info, Eric. -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
