I’m getting consistent frame flickering/dropping in ZED Studio and depth viewer on a new desktop with an RTX PRO 4000 Blackwell GPU. ZED Explorer seems to work fine on the same hardware.
System:
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GPU: RTX PRO 4000 Blackwell
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Driver: 595.71
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ZED SDK: 5.4.0
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CUDA: 13.3
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Windows 10
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Cameras tested: ZED X, ZED Mini, ZED 2i — same issue on all three
What’s affected:
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Studio: live video preview, depth view, SVO2 playback — all flicker
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Happens with plain video preview alone, no depth involved
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Happens on SVO2 playback too, no live camera connected at all
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Same camera/cable tested on a laptop with a 4080 — clean there. Only happens on this Blackwell desktop, only in Studio.
Ruled out so far:
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Uninstalled and reinstalled CUDA toolkit + ZED SDK 5.4.0 together (clean cycle, reboot) — ZED_Diagnostic shows CUDA operations fully healthy, no change in behavior
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Depth mode — NEURAL and NEURAL LIGHT both flicker (NEURAL PLUS won’t load, separate issue per diagnostic)
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Windowed vs fullscreen — no difference
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USB port — tried multiple, bandwidth reports OK
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GPU power management settings — no difference
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GPU load — Task Manager shows usage rise slightly but not spike, frames seem to be computed fine, problem looks like it’s on the display side
I also wrote a Python script using the SDK directly (no Studio, no Explorer) to grab 450 frames over 15 seconds with NEURAL depth enabled. It showed zero grab errors, zero invalid depth frames, stable depth stats throughout. So the SDK/CUDA capture layer itself is healthy. The bug is isolated to how Studio specifically renders/displays frames.
This is reproducible across multiple camera models Can someone from take a look? Happy to provide the diagnostic JSON, video, or run more tests.