G-Sync windowed mode forced vsync (MPO)
Posted: 23 Jul 2022, 08:36
Hello,
I’ve noticed that the framerate of games gets capped to the refresh rate of the monitor, if g-sync is
set to “Gsync Fullscreen + Windowed mode” and you play games in windowed or windows
borderless mode.
I’ve made sure that I haven’t enabled vsync globally, per game basis or in the game itself or any other
feature like fast-sync.
The games I tried (Portal 2, Bulletstorm, Counter-Strike Source) also don’t have NVIDIA reflex that
caps framerate when vsync is active.
The Framerate is instantly uncapped as soon as I go true fullscreen mode or set gsync to only
fullscreen mode.
So the framerate cap wouldn’t bothering me, but im curious if with “Gsync Fullscreen + Windowed mode” adds the typical dwm forced vsync again that you could normally disable since NVIDIA driver 461.09 (multiplane overlay).
Since i don’t have the equipment to measure the input delay, I would like to know if someone can
help me out with that or maybe knows if the framerate cap isn’t related to dwm forced vsync.
I’ve noticed that the framerate of games gets capped to the refresh rate of the monitor, if g-sync is
set to “Gsync Fullscreen + Windowed mode” and you play games in windowed or windows
borderless mode.
I’ve made sure that I haven’t enabled vsync globally, per game basis or in the game itself or any other
feature like fast-sync.
The games I tried (Portal 2, Bulletstorm, Counter-Strike Source) also don’t have NVIDIA reflex that
caps framerate when vsync is active.
The Framerate is instantly uncapped as soon as I go true fullscreen mode or set gsync to only
fullscreen mode.
So the framerate cap wouldn’t bothering me, but im curious if with “Gsync Fullscreen + Windowed mode” adds the typical dwm forced vsync again that you could normally disable since NVIDIA driver 461.09 (multiplane overlay).
Since i don’t have the equipment to measure the input delay, I would like to know if someone can
help me out with that or maybe knows if the framerate cap isn’t related to dwm forced vsync.
- GPU: Asus RTX 2080 TI (No overclock)
- OS: Windows 11@21H2 (Build 22000.739)
- Displays: 2 (Both 144hz)
- Current NVIDIA driver: 512.95 (DCH version)