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Author Topic: Mac G4 MDD OS 9 stuck at 640x480  (Read 5007 times)

scouter

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Mac G4 MDD OS 9 stuck at 640x480
« on: April 05, 2021, 12:39:25 PM »

I recently bought a 2003 G4 MDD 125mghz with Geoforce 4MX 64mb and have OS X 10.5.8 on one disk and Mac OS 9 on another, video modes in OS X are fine but in OS 9 I only get VGA 640 x 480 how do I fix this.?
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Mat

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #1 on: April 05, 2021, 03:36:01 PM »

Start by looking into your System Folder, if you can find the Geforce Extensions active, or the ATI ones or non at all?
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scouter

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #2 on: April 05, 2021, 11:58:27 PM »

 The extensions are all there the ATI and Nvida ones I tried it with them and without them and also just the Nvidia ones and it's just the same only get 640 x 480
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scouter

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #3 on: April 07, 2021, 02:43:25 PM »

Has anybody got any ideas about how to fix this.
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FBz

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #4 on: April 07, 2021, 03:04:31 PM »

…and have OS X 10.5.8 on one disk and Mac OS 9 on another…

OS 9, or OS 9.2.2?

Might try installing fresh OS 9.2.2 to make certain that you have the latest (last, at that time?) available OS 9 video drivers.

And from:
http://macos9lives.com/smforum/index.php/topic,3962.msg26868.html#msg26868

nVidia GeForce4 MX OEM/64MB BGA VRAM/ADC+DVI (Apple P/N 603-2539/630-4465) - ROM 2032
1920x1200 at 24-bit color - single digital output only - Comments - This card is strange because it appears they made the bizarre cost-cutting decision of having two digital connectors but only one DVI transceiver chip!?!  (An older version of this card does actually have both transceivers.)  The card will detect both monitors properly and report them to the system but will only display image on one of them.  Using VGA via adapter on the second port yields a locked 640x480 resolution on the second monitor, but at least it shows picture simultaneously.  I don't know if part of the problem is limited OS 9 support in the ROM due to it having originally been part of an OS X-bundled system, or if the ROM was flashed at some point with a version that wasn't quite correct for this hardware variant.


OR, from:
http://macos9lives.com/smforum/index.php/topic,3650.msg24265.html#msg24265

Hey this card Works!
It didn't at first, but that turned out to be a driver issue. Even though I have 9.2.2 installed it was still running the 2.4 Nvidia drivers.
I updated it to 3.5.2 and it fired right up using the DVI connection.


3.5.2 driver here:
http://macos9lives.com/smforum/index.php/topic,1100.msg4106.html#msg4106
« Last Edit: April 07, 2021, 07:08:35 PM by FBz »
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scouter

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #5 on: April 07, 2021, 10:34:35 PM »

I am using 9.2.2 and the Nivida driver is 3.5.2 and I installed the OS version for MDD downloaded from here. And I am using a DVI to VGA adapter to connect.
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scouter

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Re: Mac G4 MDD OS 9 stuck at 640x480
« Reply #6 on: April 09, 2021, 06:14:24 AM »

I have sort of fixed this although I still only get one resolution to chose from, I got a new DVI to VGA adapter and now I get 1280 x 1024 (which is optium for my monitor) which I can live with. I have ordered a ATI radeon 9000 Pro 64MB from ebay which I am going to try.

PS. I am posting this in OS9 on my MDD using Classilla.

Christopher.
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