ROG Display Recovery — AMD Radeon 610M "Code 43" Black Screen Fix

Recovery toolkit and automatic watchdog for ASUS ROG laptops where the built‑in laptop screen goes black (or gets stuck at 640×480) because the AMD Radeon 610M integrated GPU fails with Device Manager Error Code 43.

Developed and verified on an ASUS ROG Strix G713PV (AMD Ryzen 9 7845HX + AMD Radeon 610M iGPU + NVIDIA GeForce RTX 4060 Laptop dGPU, Windows 11). The approach applies to most ASUS ROG / TUF laptops that have a hardware GPU MUX and an AMD iGPU‑driven internal panel.

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TL;DR — the fix that actually works

If your ROG laptop's internal screen is black but an external monitor works, and Device Manager shows the AMD Radeon 610M with a yellow ⚠ / Code 43:

1. Switch the GPU MUX to "Ultimate" (dGPU‑only). This re‑routes the laptop panel directly to the NVIDIA GPU and powers the broken AMD iGPU off, so its Code 43 can no longer black out your screen.
   • Armoury Crate → GPU Mode → Ultimate, or run Set-GpuMux.ps1.
2. Do a full COLD shutdown — hold the power button ~10s until it powers off, then press power again. A warm Restart leaves the MUX half‑applied (both screens black). A cold boot also clears the AMD Code 43.
3. If the panel comes up stuck at 640×480, force native resolution with Force-Resolution.ps1 — no reboot needed.
4. If, after switching to Ultimate, a cold boot comes up at a blind low resolution (e.g. 1024×768) with no other resolutions available in Display Settings — the NVIDIA GPU trained the panel link without reading its EDID — disable then re‑enable the NVIDIA adapter in Device Manager (or just run Recover-Display.ps1). That forces a fresh EDID read and the native mode table reappears instantly. No reboot needed.

That's it. The rest of this repo automates detection + recovery so you don't have to remember any of it.

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Why this happens

On these laptops, in the default MSHybrid / Optimus GPU mode the internal panel is physically wired to the AMD Radeon 610M iGPU. The NVIDIA dGPU renders frames but copies them into the AMD's framebuffer for scan‑out. So when the AMD iGPU drops into Code 43 (commonly after sleep/resume), the panel goes dark and the NVIDIA GPU cannot drive it — even though the NVIDIA card is perfectly healthy and any external monitor keeps working.

Software GPU resets (including Win + Ctrl + Shift + B) generally do not clear Code 43. What reliably works is:

• Re‑routing the panel to the NVIDIA dGPU via the hardware MUX ("Ultimate" mode) so the broken iGPU is out of the display path entirely, and/or
• A full cold power cycle, which re‑initialises the iGPU/MUX.

flowchart LR
    subgraph Optimus["Optimus / MSHybrid (default — fragile)"]
        N1[NVIDIA RTX 4060] -->|renders into| A1[AMD 610M iGPU]
        A1 -->|scans out| P1[Internal panel]
        A1 -.->|Code 43| X1[(BLACK)]
    end
    subgraph Ultimate["Ultimate / dGPU-only (fix)"]
        N2[NVIDIA RTX 4060] -->|drives directly| P2[Internal panel]
        A2[AMD 610M iGPU<br/>powered off] -.-> P2
    end

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What's in this repo

Script	What it does
Recover-Display.ps1	The recovery engine. Runs an escalating, self‑stopping ladder: force native resolution → NVIDIA adapter recycle (forces a panel EDID re‑read for the cold‑boot low‑res case) → GPU stack reset → driver rescan / service restart → AMD iGPU power‑cycle → DisplaySwitch mode‑set → re‑apply known‑good registry → (last resort) reboot ladder with loop protection. Re‑checks panel health after every step and exits the instant the panel is usable.
Install-AutoRecovery.ps1	Registers a single scheduled task (Display_AutoRecover_ROG) that runs the engine at logon / wake / unlock, elevated, in the interactive session. Removes older/duplicate tasks. Run once, as admin.
Set-GpuMux.ps1	Flips the hardware GPU MUX between Ultimate (panel → NVIDIA) and Optimus (panel → AMD) via the ASUS ATK WMI interface. Read‑before‑write, reversible, optional auto‑reboot.
Force-Resolution.ps1	Forces the internal panel back to its native resolution (fixes the 640×480 stuck state). Non‑destructive, no reboot.
Check-StateAfter.ps1	One‑shot health probe: GPU status/Code, MUX mode, active monitors, resolution.
RECOVERY.md	Full human playbook: symptoms, fast path, permanent fix, and how the automation is wired.

There are additional diagnostic/scan scripts (scan_*.ps1, run_diagnostics.ps1, generate_report.ps1, hardening helpers) used during investigation.

Note: the recovery engine reads/writes the ASUS ATK WMI interface (root\wmi:AsusAtkWmi_WMNB). MUX device id 0x00090016; DSTS reads, DEVS(Device_ID, Control_status) writes (0 = Ultimate, 1 = Optimus). These calls require administrator rights and an ASUS ROG/TUF firmware that exposes the MUX.

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Quick start

# 1. Check current state (no changes)
.\Check-StateAfter.ps1

# 2. (Optional) Switch the panel to the NVIDIA GPU permanently, then cold-boot
.\Set-GpuMux.ps1 -Mode Ultimate

# 3. Install the automatic watchdog (run as admin)
.\Install-AutoRecovery.ps1

# Manual recovery without rebooting (safe mid-session):
.\Recover-Display.ps1 -NoReboot

If a script is blocked by execution policy, launch it with: powershell -NoProfile -ExecutionPolicy Bypass -File .\Recover-Display.ps1

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Tips that prevent the problem

• Run in "Ultimate" GPU mode so the AMD iGPU is never in the display path.
• Disable Windows Fast Startup (HiberbootEnabled = 0) so every boot is a clean cold init and the MUX/driver state can't carry over half‑applied.
• Plug external monitors in after Windows loads, not at boot — connecting one at boot can break the POST display handoff on some firmwares.
• If the panel is ever fully black: hold power 10s → off → power on (cold boot), not Restart.

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Credits & related tools

• G‑Helper by seerge — an excellent open‑source ASUS control app that can also toggle the GPU MUX. Recommended if you'd rather not use Armoury Crate.
• MUX control here uses the ASUS ATK WMI interface that ASUS' own software exposes.

Disclaimer

These scripts change GPU mode, display resolution, power settings and (as a last resort) reboot the machine. They are provided as is, without warranty (see LICENSE). Review the code before running. Use at your own risk.

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Keywords: ASUS ROG Strix G713PV · AMD Radeon 610M · Code 43 · black screen · laptop display not working · MSHybrid · Optimus · Ultimate GPU mode · hardware MUX · NVIDIA RTX 4060 Laptop · iGPU disabled · 640x480 stuck resolution · Win+Ctrl+Shift+B · Armoury Crate GPU Mode · display recovery · Windows 11.