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Issues.md

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Known Issues

In-game Menu

If you can't open in-game menu:

  1. Please check that you have enabled DLSS from game options
  2. Please try opening menu while you are in-game (while 3D rendering is happening)
  3. There is a 200 frame delay before enabling in-game menu, please wait 10-15 seconds before opening menu.
  4. If you are using RTSS (MSI Afterburner, CapFrameX) please enable this setting of RTSS and try updating RTSS. image
  • Some games do not release mouse control, kayboard & gamepad controls should still work in these situations.
  • On some system and game combinations, opening the old in-game menu may cause the game to crash or cause graphical corruption (especially in Unreal Engine 5 games).

Banishers
Banishers: Ghosts of New Eden

  • Changing settings mostly tested but might cause crashes (especially changing backends or reinitializing backends).
  • In games that use Unity Engine old in-game menu will be upside down.

barrel roll
Sons of Forest

DirectX 11 with DirectX 12 Upscalers

This implementations uses a background DirectX12 device to be able to use Dirext12 only upscalers. There is %10-15 performance penalty for this method but allows much more upscaler options.

Exposure Texture

Sometimes games exposure texture format is not recognized by upscalers. Most of the time manifests itself as crushed colors (especially in dark areas).

exposure
Shadow of the Tomb Raider

In most cases, enabling AutoExposure=true in nvngx.ini or selecting Auto Exposure in Init Parameters from the in-game menu should fix these issues.

Resource Barriers

The Unreal Engine DLSS plugin is known to send DLSS resources in the wrong state. Normally OptiScaler checks engine info from NVSDK and automatically enables necessary fixes for Unreal Engine games, but some games do not report engine info correctly. This problem usually manifests itself as colored areas at the bottom of the screen.

christmas lights
Deep Rock Galactic

Workaround is to set ColorResourceBarrier=4 from nvngx.ini or select RENDER_TARGET for Color at Resource Barriers (Dx12) from the in-game menu.

Black Screen with XeSS

Some users have reported that when using XeSS upscaler backend, the result is a black screen with UI. In some cases downloading the latest version of DirectX Shader Compiler and extracting dxcompiler.dll, dxil.dll from bin\x64\ next to the game exe file resolved this issue.

Minecraft RTX

XeSS 1.1 has the best compatibility with Minecraft RTX. But I've seen reports that with various launchers it's possible to use 1.2 and above as well.

Shader Compilation error on Linux

If you are using OptiScaler with Linux and you have problems with RCAS, Reactive Mask Bias or Output Scaling, you will probably notice this message in your logs.

CompileShader error compiling shader : <anonymous>:83:26: E5005: Function "rcp" is not defined.

To solve this problem you need to install d3dcompiler_47 with WineTricks or ProtonTricks. OptiScaler uses custom shaders for these features and depends on this compiler file to compile these shaders at runtime.

Performance Issues

  • In general XeSS is heavier than FSR for GPUs so it's expected to be have lower performance even on Intel Arc GPUs.
  • As a result of spoofing the Nvidia card to enable DLSS some games would use an Nvidia-optimized codepath which may result in lower performance on other GPUs.

Display Resolution Motion Vectors

Sometimes games would set the wrong DisplayResolution init flag, resulting in excessive motion blur. Setting or resetting DisplayResolution would help resolve this issue.

mv wrong
Deep Rock Galactic

Graphichal Corruption and Crashes

As mentioned above, spoofing an Nvidia card can cause games to use special codepaths that can cause

  • Graphichal corruptions

talos principle 2
Talos Principle 2

  • And crashes, especially when raytracing is enabled.