I'm seeing flickering and a black checkerboard box near the bottom of the screen in RDR2 on PC with an RTX 5070 Ti. Vulkan seems fine, and GPU and VRAM stress tests haven't reported errors. Is there a setting worth checking, or should I just use Vulkan?
RDR2 has flickering and black checkerboard boxes with DX12. What should I try?
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Rellin-3k
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If Vulkan runs cleanly, that's the simplest workaround for now. The difference between the two graphics APIs points toward a DX12-specific issue in this setup, though it doesn't establish exactly what causes it.
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Try changing DLSS to Performance mode as a comparison. That setting has been suggested for similar black boxes in DX12 cutscenes, but it may affect image quality, so see whether the tradeoff is worthwhile.
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The clean stress tests are useful, but they don't prove the GPU can never be involved. I'd compare the same scene on DX12 and Vulkan, then change one setting at a time. G-Sync, Resizable BAR and display mode are possibilities to test, not confirmed causes.
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