Screen goes black after a few minutes

[ericbruens]

After I boot the computer a few minutes later the screen goes black. I have a second screen attached which I have set to mirror, that still works. When I reboot I get the same

[Kuroi_Kenshi]

Hi @ericbruens,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your HP OmniStudio X 31.5" All-in-One PC screen goes black a few minutes after boot, while the second mirrored screen still works. Let’s go through some steps to narrow this down.

1. Check Brightness and Display Settings

Press Windows + P and confirm the display mode is set to Duplicate or Extend.

Try adjusting brightness using the keyboard shortcut (Fn + Brightness keys) or Windows settings (Settings > System > Display > Brightness & color).

2. Update Graphics Drivers

Right-click Start > Device Manager > Display adapters.

Update the graphics driver (Intel, AMD, or NVIDIA).

If already updated, uninstall the driver and restart—Windows will reinstall a fresh copy.

3. Run HP Support Assistant Updates

Open HP Support Assistant (pre-installed on most HP devices).

Install any pending BIOS, firmware, or display driver updates.

4. Check Power & Sleep Settings

Go to Settings > System > Power & battery > Screen and sleep.

Ensure the screen turn-off timer is not set too short.

Disable adaptive brightness if enabled.

5. Test Without External Monitor

Disconnect the second monitor completely and restart the PC.

If the internal display still goes black, it points to a panel or connection issue.

6. Run a Hardware Diagnostic

Restart the PC and press F2 repeatedly to open HP PC Hardware Diagnostics UEFI.

Run the Display Test to check for hardware faults.

7. Hard Reset the PC

Shut down the PC, unplug the power cord.

Hold the power button for 15 seconds to drain residual power.

Reconnect and restart.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

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Best regards,