Whining noise when screen brightness is less than 100%

[VCRBee]

Hi. As I reduce the brightness on my screen, the volume of an ear-piercing screeching noise increases!

The only time the system is quiet is when the brightness is on 100%. The more I reduce the brighness, the louder the unbearable noise.

This is a brand new system... purchased last week.

Grateful for any help.

Thanks.

[KrazyToad]

@VCRBee

This could be a driver issue. I suggest you download and run the HP Support Assistant from this Link: https://www8.hp.com/us/en/campaigns/hpsupportassistant/hpsupport.html?jumpid=va_r602_us/en/any/psg/p...

HPSA will automatically search for all the latest drivers for your Notebook

1. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.

   

2. Click Check for updates and messages to scan for new updates.

   

3. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.

4. Click the update name for a description, version number, and file size.

5. Select the box next to any updates you want to install, and then click Download and install.

Also ensure Windows is up to date.

Select the Start  button, and then go to Settings  > Update & security  > Windows Update , and select Check for updates. If Windows Update says your device is up to date, you have all the updates that are currently available

Keep me posted how it goes

Thank you and have a wonderful day 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

[VCRBee]

Sorry for the delay, @KrazyToad. I've now fully reset the PC, run all the updates (Windows and drivers) and am sorry to say the whining noise is persisting and is as irritating as ever!

Any other suggestions?

Vicky

[Riddle_Decipher]

@VCRBee Please check if the issue appears when the brightness is lesser than 100% while using the adapter with an alternate wall outlet, that said, I suggest you run a complete h/w test to identify any hardware malfunctions that could be causing this issue and we can work on a precise fix once we have the results:

Install the latest version of the HP Hardware diagnostics (UEFI) on your device using this link: Click here for details

• Hold the power button for at least five seconds to turn off the computer.
• Turn on the computer and immediately press Esc repeatedly, about once every second. When the menu appears, press the F2 key.
• On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests.
• Click Extensive Test.
• Click Run once, or Loop until error.
• While the test is running, the time remaining and test result for each component display on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you respond back to us.

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.

[VCRBee]

Thank you for your reply.

But it's not a laptop. It's an all-in-one desktop PC so I can't run it without the power supply!

Vicky

[Riddle_Decipher]

@VCRBee I've corrected the same, please try with an alternate wall outlet, and the rest of the steps to perform the test should work for all-in-ones as well.

Let me know how that goes.