Problem with 50hz

ancalimon · 04 July 2007, 22:29

My lcd monitor is fixed at 60 hz and 75 hz screen refresh rates.

When I select 60hz in winuae to make the moving objects smooth (like scrolling games etc) weird things happen like faster games, clock going insane.
And there is a visible scanline effect from up to down that tears moving icons in two.

I have a similar thing going with my real Amiga with CybervisionPPC with CyberGfX. Somehow I think even the VGA monitors refresh rate is tied to Amiga's custom chips in a way. Ie: I set the refresh rate to 60hz using AHI tool to set Paula 22khz to higher and instantly my 1024-768 16 CGX screen via CVisionPPC becomes much smoother. (when I created a resolution with 60hz refresh)

Is it possible to set the refresh to 60hz but not make it ntsc speed? Or is it a limitation (or feature) of Amigaos?

I know the question sounds a bit stupid. But this is the most technical I can get in English

Toni Wilen · 04 July 2007, 23:18

Vsync enabled = everything is synced to selected refresh rate. Thats how Amiga hardware works.

ancalimon · 05 July 2007, 19:51

so is it possible to "at least" make the coputer run at 60 or 75hz at vga screens but immediately revert back to pal 50hz when I run a game or a demo?

04 July 2007, 22:29	#1
ancalimon Supernormal Join Date: Jul 2007 Location: Istanbul / Turkey Age: 43 Posts: 1,413	Problem with Winuae and 50hz to 60hz My lcd monitor is fixed at 60 hz and 75 hz screen refresh rates. When I select 60hz in winuae to make the moving objects smooth (like scrolling games etc) weird things happen like faster games, clock going insane. And there is a visible scanline effect from up to down that tears moving icons in two. I have a similar thing going with my real Amiga with CybervisionPPC with CyberGfX. Somehow I think even the VGA monitors refresh rate is tied to Amiga's custom chips in a way. Ie: I set the refresh rate to 60hz using AHI tool to set Paula 22khz to higher and instantly my 1024-768 16 CGX screen via CVisionPPC becomes much smoother. (when I created a resolution with 60hz refresh) Is it possible to set the refresh to 60hz but not make it ntsc speed? Or is it a limitation (or feature) of Amigaos? I know the question sounds a bit stupid. But this is the most technical I can get in English Last edited by ancalimon; 04 July 2007 at 22:53.

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04 July 2007, 23:18	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,534	Vsync enabled = everything is synced to selected refresh rate. Thats how Amiga hardware works.

05 July 2007, 19:51	#3
ancalimon Supernormal Join Date: Jul 2007 Location: Istanbul / Turkey Age: 43 Posts: 1,413	so is it possible to "at least" make the coputer run at 60 or 75hz at vga screens but immediately revert back to pal 50hz when I run a game or a demo?

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