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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Consumer Hardware & Components > monitor amnesia

monitor amnesia
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Fresh-Faced Recruit
Join Date: Apr 2000
Location: Piedmont, CA
Status: Offline
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Sep 5, 2001, 10:00 AM
 
Hi,
I've never had a monitor go bad in over 10 yrs, so I'm wondering exactly what could be going on with my 1705 Apple Mulitsych. It all started when I got a new video card, an XClaim VR 128, and when I connected the monitor I was unable to get more than 640X480--the other resolutions and speeds just gave me a narrow band in the middle of the monitor or didn't work. In retrospect this may have been because I was just looking at the recommended resolutions, not all of them. Anyway---I switched this monitor with a VGA monitor my kid had on his PC, and things seemed to be fine, as the card was designed to also work with VGA monitors and I had an adaptor for the 1705 so it could work with the PC. The only weird thing was the initial bios and Windows 98 screens were again a narrow band in the middle of the monitor, but the desktop loaded OK and appeared OK; there were few choices of resolutions given, however, and I kept it at 600X800. After a while, though, I noticed there were some white dots on the superior portion of the monitor and that the windows were not exactly fitting correctly on the screen, with their superior portions hidden and the pointer not visible when it went to the top of the screen. I switched the monitors back. And here is the weird part: now the card will not recognized the monitor as a Mac, it sees it as a VGA monitor. In addition, there are now some horizontal white lines across the uppermost part of the monitor through the title bar, which is slightly truncated superiorly. Even if I connect the Mac though the buillt-in video I still get the lines, so it is not the card. I am wondering--can a monitor be "reset" after it has been connected to a PC so that it is more like a VGA monitor, and can it be permanently damaged by being connected that way? The monitor is still usable, the white lines aren't that bad, but it is all very curious. Any ideas?
     
Forum Regular
Join Date: Aug 2001
Location: the land of milk and honey
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Sep 6, 2001, 04:54 PM
 
So does your card have both VGA and (old style) 15-pin 2-row ports? If this is a new card, it shouldn't, as Apple stopped using their stupid proprietary connection years and years ago. Try looking at all resolutions, as opposed to the recommend ones. Start at 640x480 @ 60Hz and go up from there. That monitor should be capable of 1024x768 @ 75hz, so maybe you got a bum card.
calibrated in-phase cylindrical chamber technician
     
   
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