English Amiga Board - View Single Post - [ongoing] Catacomb 3D series and Keen Dreams

BSzili · 22 August 2016, 09:00

I found out what causes the issue: the VGAOnly monitor driver patch. I had to do quite a bit of googling to find out what it does. For one thing, it increases the horizontal frequency of DblPAL and DblNTSC monitor drivers from 27 kHz to 29. This shouldn't be a problem, since the game uses the default PAL/NTSC monitors. Then I also read, that it supposedly promotes PAL/NTSC modes to DblPal/DblNTSC. That sounds like it could cause problems, but I'm still none the wiser why.

22 August 2016, 09:00	#18
BSzili old chunk of coal Join Date: Nov 2011 Location: Hungary Posts: 1,292	I found out what causes the issue: the VGAOnly monitor driver patch. I had to do quite a bit of googling to find out what it does. For one thing, it increases the horizontal frequency of DblPAL and DblNTSC monitor drivers from 27 kHz to 29. This shouldn't be a problem, since the game uses the default PAL/NTSC monitors. Then I also read, that it supposedly promotes PAL/NTSC modes to DblPal/DblNTSC. That sounds like it could cause problems, but I'm still none the wiser why.