Author Topic: Lowest supported resolution in Mac OS 9.2.2  (Read 338 times)

Offline teroyk

  • Veteran Member (100+ Posts)
  • ****
  • Posts: 149
  • -
  • Liked:
  • Likes Given: 8
Lowest supported resolution in Mac OS 9.2.2
« on: April 06, 2020, 01:58:36 AM »
Is there low limit in graphics resolution in Mac OS 9.2.2?
Example the original Macintosh resolution: 512342 1-bit (b/w)

Lowest I can get is 640x480 8-bit (256 grayscales)
I have seen 640x480 1-bit at Mac OS 8.1.
I have CRT that support down to 320x200 resolution and it would be nice to test.
I bought my first new Mac when OS X 10.1 released. And I bought that Mac because it had Mac OS 9 too. And I bought my first 68k Mac when Apple stopped PPC Macs.

Offline darthnVader

  • Moderator
  • Platinum Member (500+ Posts)
  • *****
  • Posts: 550
  • New Member
  • Liked:
  • Likes Given: 0
Re: Lowest supported resolution in Mac OS 9.2.2
« Reply #1 on: April 06, 2020, 05:44:14 AM »
Likely, any New World ROM Mac would be 8bit by default, but screen resolutions would be a matter of the graphics cards 'NDRV' and EDID of the display.

Old World Macs with Open Firmware and PCI slots may also be limited to 8bit color/grays.

Offline teroyk

  • Veteran Member (100+ Posts)
  • ****
  • Posts: 149
  • -
  • Liked:
  • Likes Given: 8
Re: Lowest supported resolution in Mac OS 9.2.2
« Reply #2 on: April 06, 2020, 01:24:37 PM »
new lowest found: 512x384 8-bit at 50hz
With Powerbook G4 (radeon 9000) S-video-output to television.
I bought my first new Mac when OS X 10.1 released. And I bought that Mac because it had Mac OS 9 too. And I bought my first 68k Mac when Apple stopped PPC Macs.