When I set it to 144Hz the monitor starts to blink but at 60Hz it doesn't

[DUDZ1231]

"Hello, I experience screen flickering from time to time. Things like the top half of the screen flickering on the bottom half. It always flickers in the same spot during a video or game. I can set the refresh rate to a maximum of 143.992Hz. I’m not sure if this is a problem. I tried at 119.982Hz, and it does the same thing; then I tried at 60Hz, and it seems to stop flickering. I would like to use the monitor at 144Hz without flickering."

[SNicollas]

Hey @DUDZ1231!

Hope you are doing fine!

Thank you for visiting our English HP Support Community. It would be ideal if the post was in English, so that other HP product users like you can also benefit from the information provided here. To ensure a quick response, it would be advisable to post your question in English.

We understand that English is not your primary language, so we advise you to use an on-line translator of your choice to post in the language of our Community.

Thank you for your understanding.

Regards

[NonSequitur777]

@DUDZ1231,

Welcome to our HP Community forum!

Assuming you got a (gaming) PC, it’s possible that your graphics card is struggling to handle 144Hz, especially if it’s being pushed to its limits in scenarios like gaming or high-resolution displays. Here’s how you can determine if your GPU is the bottleneck:

1. Verify GPU Power

• What GPU are you using in your desktop? If it’s an entry-level card or older model, it might struggle with higher refresh rates.
• For example:
  • Cards like NVIDIA GTX 1050 or older AMD models might not handle 144Hz well at higher resolutions.
  • Ensure your GPU supports your monitor's refresh rate and resolution combination (e.g., 1080p at 144Hz).

---

2. Check Power Supply

• Insufficient power delivery to your GPU can cause instability.
• Ensure your PSU (Power Supply Unit) meets or exceeds the GPU’s power requirements.
• Use software like HWMonitor to check power and voltage levels during operation.

---

3. Update Drivers and Firmware

• Update the GPU drivers from NVIDIA, AMD, or Intel.
• Check if the monitor has a firmware update available (some gaming monitors do).

---

4. Run a Different Monitor

• Connect another 144Hz monitor to your desktop. If it works fine, your current monitor may have an issue.
• Alternatively, connect your monitor to a different desktop with a stronger GPU to isolate the issue.

---

5. Test in the GPU Control Panel

• Open NVIDIA Control Panel or AMD Radeon Software and manually set the refresh rate to 144Hz.
• Disable features like vertical sync (V-Sync) and G-Sync/FreeSync for testing.

---

6. Stress Test the GPU

• Use benchmarking tools like Unigine Heaven/Valley or 3DMark to stress test your GPU.
• Monitor for artifacts, crashes, or abnormal behavior during the test.

---

7. Use a Dedicated Cable

• For 144Hz, ensure you’re using:
  • DisplayPort 1.2 or higher (preferred for 144Hz).
  • HDMI 2.0 or higher (only some GPUs/monitors support 144Hz over HDMI).

---

8. Experiment with Lower Refresh Rates

• If the monitor doesn’t blink at 120Hz, the issue might still lie with the GPU's ability to handle 144Hz in certain scenarios.

---

Do you mind sharing your desktop’s GPU model and monitor details? That would help narrow it down further!

Kind Regards,

NonSequitur777