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Changing Refresh Rate?
Posted: Fri Jul 06, 2007 5:47 am
by top
Is there a variable to change the display refresh rate in ZDoom? Right now my monitor is having to flicker to another refresh rate when I load the port. My current desktop refresh rate is 85Hz.
Thanks!
Posted: Fri Jul 06, 2007 12:18 pm
by Biff
Not that I know of. You're probably playing zdoom at a different resolution than your desktop setting, and your display driver is using a different refresh rate for the zdoom resolution. You can probably adjust driver or video card settings to control the refresh rate.
Posted: Fri Jul 06, 2007 4:39 pm
by Lamneth
Set the resolution to that of your desktop. (I play at it and don't have that problem) Also try turning on Vertical Sync.
Posted: Fri Jul 06, 2007 5:12 pm
by Rex Of Nex
That might work- Oh, and I am new here.
Posted: Fri Jul 06, 2007 5:37 pm
by Nash
Just to add to what Lamneth suggested; try turning on vertical sync from within ZDoom by opening the console and typing vid_vsync 1.
I always have this turned on because I find it annoying that ZDoom renders at 900 FPS all the time.

Posted: Sat Jul 07, 2007 7:54 pm
by Lamneth
No point in even having 900 FPS when your monitor can only show it at whatever its refresh rate/response time is.
Posted: Sat Jul 07, 2007 8:03 pm
by top
Thank you all for your replies!
Right now my desktop screen res is @ 1920x1200. And I also play ZDoom @ 1920x1200. I also have vertical synchronization enabled but the refresh rate ZDoom goes by I believe isn't my desktop's refresh rate (Which is 85Hz).
I believe remembering I had an older monitor that maxed out @ 1600x1200 with a 60Hz refresh rate. I remember switching from ZDoom and back to my desktop without my monitor having to change settings or "flicker".
I'm thinking ZDoom runs the refresh rate @ 60Hz? But then when I run Vsync, my capped fps is 85, same as my monitor's desktop refresh rate.
I know it's different code and engine stuff, but in Quake4 and all the other games like quake3 and such, I set my display refresh to the desktop's refresh rate and I'm able to switch windows without the flickering IF the game has the same res as my destkop.
Posted: Sat Jul 07, 2007 8:15 pm
by randi
ZDoom just lets DirectDraw/3D use whatever refresh rate it wants. If you're capping at 85 Hz with vsync on, then your refresh rate is 85 Hz.
Posted: Sat Jul 07, 2007 10:51 pm
by top
Why does my monitor have to flicker every time I load ZDoom when the res is the same as the desktop res?
Posted: Sun Jul 08, 2007 2:28 am
by LogicDeLuxe
top wrote:Why does my monitor have to flicker every time I load ZDoom when the res is the same as the desktop res?
I assume, your desktop is not set to 8bpp. Your drivers most probably are set to different refresh rates for different color depth.
Posted: Sun Jul 08, 2007 6:26 am
by top
Oh yeah! Why didn't I think of that before? Must of forgot.