Forcing ZSNES to use a certain refresh rate?

Soul Colossus · Post by **Soul Colossus** » Sat Mar 25, 2006 11:37 pm

Is it possible? In fullscreen 1024x768 or 1280x960, my refresh rate is set to 85hz which is fine for regular 3D games, but ZSNES seems to be capped at 60 FPS. With the refresh at anything higher than 60hz and with vsync enabled, there's a slight stuttering effect due to it being out of sync.

If I have to I suppose I'll set those resolutions to 60hz

whicker · Post by **whicker** » Sun Mar 26, 2006 12:05 am

With the way you explained things, it's almost as if you already know the answer.

The snes games "run" at 60 Frames Per Second. (although some games might update the scrolling at 30 or 15 Hz intervals).

You will see stuttering due to beat frequencies any anything other than a multiple of 60Hz. The only thing I can suggest is to use some mode you don't normally use for your regular windows programs and force that one to be 60 Hz.

Look up terms like "inverse telecine" to see that the solutions to your problem would call for a blurier picture, but it would get rid of the jerkiness.

Soul Colossus · Post by **Soul Colossus** » Sun Mar 26, 2006 12:12 am

The difficulty is that all the 4:3 resolutions that I'd run it in I also use in a lot of other games, some of which depend on the higher frequencies to have less tearing without vsync. It'd be a real hassle to switch refresh rates between games.

However, this very moment I just noticed 1600x1200 in the latest WIP (I haven't been around here in a while

) which might work out for 60hz since the only games I run at that res (namely Quake3) I can force into 75hz. Hooray!

That would be a good feature request though: specifiable refresh rates; in the cfg perhaps.

Clements · Post by **Clements** » Sun Mar 26, 2006 12:16 am

Or use the -6 switch.

Soul Colossus · Post by **Soul Colossus** » Sun Mar 26, 2006 12:21 am

Clements wrote:Or use the -6 switch.

The jigga-whut?

EDIT: nvm, should have read the FAQ. I tried the -6 and -K, the former doesn't seem to do anything (what exactly is it supposed to do?) and the other doesn't even load zsnes, even if I set it to a resolution that I know supports 120hz.

Clements · Post by **Clements** » Sun Mar 26, 2006 12:26 am

Command-line switch that forces 60Hz.

Soul Colossus · Post by **Soul Colossus** » Sun Mar 26, 2006 12:32 am

It seems to be kind of iffy.. probably something to do with how I've set my refresh rates between my nvidia control panel and/or RefreshForce.

EDIT:

It seems that if I use RefreshForce to set a res to something above 60hz, the -6 switch is unable to override that. I can disable RefreshForce and set the higher frequency with nvidia's control panel, but it only seems to apply to the desktop and in games it reverts to 60hz :\