Mewgenics Borderless Fullscreen Guide: Fix Black Screen, HDR, And Multi Monitor Issues
Borderless fullscreen in Mewgenics can cause black screen flashes, HDR problems, or strange behavior on multi monitor setups. Even though the game runs in borderless by default, some systems treat it like exclusive fullscreen due to driver or Windows overrides. The good news is there is a reliable Nvidia fix that solves most of these issues.
If your screens flash black when clicking another monitor, HDR turns washed out after closing the game, or performance tanks in fullscreen, this guide walks through the fix.
Why Borderless Fullscreen Feels Broken
Some players report that:
Clicking a second monitor causes both screens to flash black
HDR becomes washed out after closing the game
Windows HDR toggles off automatically
Fullscreen drops to extremely low FPS after several minutes
Windowed mode works fine, but fullscreen does not
This behavior is usually tied to how Nvidia drivers handle OpenGL and Vulkan presentation methods on Windows 11.
Even though the game uses borderless fullscreen, the driver may override it and force exclusive style behavior.
Nvidia Fix For Borderless Fullscreen And HDR
If you are using an Nvidia GPU, this fix resolves the issue for most players.
Step 1: Change Vulkan And OpenGL Present Method
Open Nvidia Control Panel
Go to 3D Settings
Find Vulkan/OpenGL Present Method
Change it to Prefer layered on DXGI Swapchain
Click Apply
You can apply this setting globally or create a program specific profile for Mewgenics.exe.
Important note, this setting may reset after Nvidia driver updates.
Advanced Nvidia Profile Inspector Fix
If the above fix does not fully solve the issue, use Nvidia Profile Inspector.
Download Nvidia Profile Inspector
Open it and enable Show unknown settings from NVIDIA predefined profiles
Press Ctrl plus F and search for OGL_DX_PRESENT_DEBUG
Open the bit value editor
Enable bit 00 and bit 19
Apply changes
These flags enable DXVK support and prevent forced promotion to exclusive fullscreen in some OpenGL titles.
After applying, restart the game and test borderless fullscreen again.
Why Windowed Mode Works
Windowed mode bypasses the presentation method conflict. That is why HDR and monitor switching behave normally in windowed but not in fullscreen.
However, true borderless should behave like windowed without borders, so if it does not, it is almost always a driver level issue.
What About Ultrawide Support
If you are using an ultrawide monitor and the game does not scale correctly, this is separate from borderless behavior. Ultrawide support depends on native aspect ratio implementation. If missing, you may need to wait for official support or use scaling tools.
Final Blurb
Borderless fullscreen issues in Mewgenics are usually caused by Nvidia presentation method conflicts rather than the game itself. Changing the Vulkan/OpenGL present method to Prefer layered on DXGI Swapchain fixes the black screen flashing and HDR problems for most players. If you are running multi monitor with HDR enabled, this fix is almost mandatory.
FAQ
Does Mewgenics support borderless fullscreen
Yes. It runs in borderless by default, but drivers may override behavior.
Why does HDR turn off after closing the game
This is caused by Nvidia OpenGL presentation handling on some systems.
Is this a Windows 11 issue
It appears most common on Windows 11 with newer Nvidia drivers.
Will I need to redo this fix after driver updates
Yes. Nvidia driver updates can reset the presentation setting.
