Hp omen laptop, crackling and popping audio + cannot adjust brightness

[aj2510]

My HP Omen laptop makes crackling/popping sounds when any audio/video is played. I do not think there was an update and it just started one day. In addition, I cannot adjust my brightness via keyboard shortcut and even when I try to change in manually in settings, although the slider words, the brightness does not change. 

[Nal_NR]

Hi @aj2510,

Welcome to the HP Support Community. 

I'd be happy to help you! 

I understand that you are facing issues with the crackling and popping audio.

To be able to answer you effectively, we need some information.

Have you made any changes to your software or hardware?

May I have the exact product name and number? Refer to this document for steps to find the product details. Do not share any of your personal information such as serial, phone number, email ID, etc.

Meanwhile, let's try these steps: 

Adjust the display brightness using the keyboard function keys

Adjust the screen brightness using keyboard keys. The brightness function (fn) key numbers (f9 or f10) might vary depending on the notebook model. However, the icons on the keys should be similar.

To make the display brighter, hold the fn key and press the f10 key or this key repeatedly.

To make the display dimmer, hold the fn key and press the f9 key or this key repeatedly.

Brightness adjustments on some notebook models do not require pressing the fn key. Press f2 or f3 to change the setting.

NOTE: If you restart the computer after adjusting the display brightness, the brightness level might return to the default setting based on the power source (battery or AC). This is not an error; the notebook is functioning as designed. Use the function keys to change the brightness back to the desired setting, or change the default settings in the Control Panel.

Adjust the display brightness in Windows

Open the computer power plan settings to change the screen brightness.

1. Search Windows for 'edit power plan', then click Edit power plan in the list of results.
2. Use the Adjust plan brightness sliders to increase or decrease the screen brightness, then click Save changes.

Figure: Adjust the power plan brightness

Connect the AC adapter while the notebook is turned on

To adjust the brightness of the display using the battery setting, connect the computer to AC power while the notebook is turned on and using the battery. Battery power option plans have brightness settings that can be customized. This might explain why the display is brighter when AC power is used. If the display is brighter when plugged into the AC power, unplug the AC power to check the battery brightness settings.

Check for display driver update in the Device Manager (Windows 10)

Windows Update will automatically load the correct drivers upon upgrade. If the correct drivers were unable to be installed on upgrade, you might need to manually update the graphics driver using Windows Update following these steps:

1. In Windows, search for and open Device Manager.
2. In the list of devices, expand Display adapters.
3. Right-click the graphics device and select Update Driver Software.
4. Click Search automatically for updated driver software.
5. Follow the on-screen instructions to install the updated driver.
6. Restart your computer to complete the installation of the updates.

Keep me posted for further assistance.

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