- Home /
Dual monitor causing FPS drops to half
My unity version is 2020 1.11
The issue is that if I use dual monitor (Win10, extend display mode) for unity editor, if I hit play the frame rate drops to half.
I have tried on multiple PC, laptop, all with a clean project, nothing added, same symptom In profile, clearly whenever I use dual monitor layout for Unity Editor, there's a huge long grey bar called "EditorLoop" appeared in Main Thread, without dual monitor, it disappear
Is this normal is if there's anything that I can tweak?
The lowest spec rig I have tried is a surface pro i5 630, the 3D default project drops from 130 fps to 55 fps The highest spec rig I have tried is a Zen 3600X with 2060, fps dropped from 550 to 300
Answer by MrMelSE · Dec 05, 2020 at 10:19 PM
Same issue here, tested 2019 and 2020 releases.
It's on NVIDIA cards, not happening on AMD, you can workaround it with running Vulkan engine instead I realized, for me that causing some other things, but it's a viable workaround.
add -force-vulkan to switch from OpenGL to Vulkan.