Samsung G8 OLED Not Detected After Sleep? Auto-Reset GPU on Unlock! 🎉

Problem: Your OLED Screen Isn’t Detected After Sleep

If you’re using a Samsung G8 OLED (or a similar monitor), you may have noticed that after waking your PC from sleep, Windows no longer recognizes the display. The usual fix is pressing Win + Ctrl + Shift + B to reset the graphics driver manually.

Instead of doing this every time, we’ll show you how to automate the process so Windows resets the GPU automatically whenever you unlock your session.

✅ The Solution: Automate GPU Reset on Unlock

We’ll use PowerShell + Task Scheduler to trigger the GPU reset automatically every time you unlock Windows.

Step 1: Create the PowerShell Script

1. Open Notepad and paste the following script:

Add-Content -Path “C:Scriptsgpu_reset_log.txt” -Value “$(Get-Date) – GPU Reset triggered”

[System.Windows.Forms.SendKeys]::SendWait(“^+{B}”)

2. Save it as C:ScriptsRefreshGPU.ps1 (create the C:Scripts folder if it doesn’t exist).

🔍 What this does:

  • It logs each reset attempt in gpu_reset_log.txt, so you can check if it’s working.
  • It sends the Win + Ctrl + Shift + B command to reset the GPU.

Step 2: Set Up Windows Task Scheduler

Now, let’s configure Windows to run this script automatically every time you unlock your session.

  1. Open Task Scheduler (Win + R → taskschd.msc).

  2. Click Create Task… (on the right panel).

  3. General tab:

    • Name it “Refresh GPU”.
    • Check “Run with highest privileges”.

  4. Triggers tab:

    • Click New… → Choose “On workstation unlock”.

  5. Actions tab:

    • Click New…
    • Action: “Start a program”
    • Program/script: powershell.exe
    • Add arguments:

      -ExecutionPolicy Bypass -File "C:ScriptsRefreshGPU.ps1"

       

  6. Conditions tab:

    • Uncheck “Start the task only if the computer is on AC power” (for laptops).

  7. Click OK and close Task Scheduler.

Step 3: Test the Automation 🚀

  1. Manually run the script to confirm it works:

    powershell -ExecutionPolicy Bypass -File "C:ScriptsRefreshGPU.ps1"

    If your screen flickers and you hear the system beep, it’s working!

  2. Lock (Win + L) and unlock your PC to see if it runs automatically.

  3. Check the log file (C:Scriptsgpu_reset_log.txt) to confirm that the script is being executed.

🎯 Conclusion

This method ensures that your GPU resets automatically after unlocking Windows, eliminating the need for manual intervention. Say goodbye to display detection issues—just unlock your PC, and everything works as expected!

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