Issue

Deadlock black-screens, then the whole PC reboots. No on-screen BSOD. Happens in matches and while sitting in the lobby not moving. Other games are stable.

Crash codes

•  BugCheck 0x00000119 VIDEO_SCHEDULER_INTERNAL_ERROR
•  Kernel-Power 41 (unexpected restart)
•  EventLog 6008
•  Sometimes nvlddmkm, sometimes no NVIDIA error
•  Steam verify often says 1 file failed after a crash

When it happens

•  Started around 1–2 hours into a session
•  Later as fast as ~10 minutes
•  Holiday bounce-pad VFX
•  Ivy
•  Spectating Haze
•  8/18: full reboot while waiting for a match, not moving
•  One session lasted hours with no crash, then it came back with no setting/driver change

PC specs

•  CPU: AMD Ryzen 7 9850X3D
•  GPU: Zotac RTX 4090
•  Mobo: ASUS PRIME X870-P
•  PSU: Corsair RM1000e (ATX 3.0)
•  Monitor: Samsung Odyssey G60SF, 2560x1440 @ 500 Hz (GPU only)
•  OS: Windows 11
•  NVIDIA driver: 596.49 (DDU + clean install)

HWiNFO at last logged crash (8/18 ~9:05 PM)

Power and temps were fine. Not a 12V drop.
GPU 12VHPWR: 12.15 V at crash (session 12.09–12.26 V)
GPU PCIe +12V: 12.25 V
GPU temp: ~46 C (max 54 C)
GPU hotspot: ~52 C (max 63 C)
GPU power: ~222 W (max 351 W)
GPU clock: 2685 MHz, still boosting
CPU (Tctl): ~63 C

What I already tried

Hardware / power
•  Reseated the 12VHPWR twice
•  Replaced the stock cable with a CableMod 90-degree 12VHPWR (worried maybe it bending caused a slight disconnect)
•  OCCT VRAM test: no errors
•  HWiNFO logging during a crash: 12VHPWR never dropped
•  Left BIOS CPU/SoC voltage alone

iGPU / display

•  Microsoft Basic Display Adapter Code 10
•  Disabled iGPU in Device Manager
•  BIOS: Primary Video = PCIe, Integrated Graphics = Disabled
•  That fixed no-display boots after shutdown
Drivers / NVIDIA
•  Updated AMD chipset software
•  DDU in Safe Mode
•  Clean NVIDIA install, then rollback to 596.49
•  NVIDIA Control Panel (deadlock.exe): Prefer maximum performance, 240 FPS cap, Low Latency Off, texture filtering High performance, VSync Off
•  Cleared DirectX shader cache

Windows

•  Fast startup off
•  Hardware-accelerated GPU scheduling off
•  Steam overlay off
•  Deadlock run as administrator
•  TDR delay: TdrDelay = 10, TdrDdiDelay = 10

Deadlock

•  Full Screen, Direct3D 11 (-dx11)
•  Stretch (no FSR2 / DLSS)
•  Bloom / effects / AO off, shadows Low, Reflex Off
•  In-game FPS cap ~210
•  Full uninstall, deleted leftover SteamLibrary Deadlock folder, reinstall
•  No mods
•  Verify files (still reports 1 file failed after crashes)

This looks like a Deadlock + NVIDIA scheduler bug, not thermals or the 16-pin. Anyone else getting 0x119 reboots in lobby or on ability VFX? Any workaround besides waiting on a patch? Vulkan vs DX11?