HP Spectre x360 Convertible - Unable to adjust brightness in any way

[friendd909]

Hello, for some time I have been unable to adjust the brightness on my laptop at all with it being constantly set to full brightness. I should be able to adjust the brightness via the f2 and f3 hotkeys but these simply do nothing. Likewise, if I adjust the brightness slider via the notification button, this also has no effect. This used to work fine. 

This means I am stuck with constant full brightness which is very frustrating, particularly for my battery life! I have tried numerous suggestions from other forums and threads, all to no effect.

Very grateful if someone could assist.

Thanks in advance.

[Raj1788]

@friendd909

Have you installed all available windows updates using the HP Support Assistant?

(if not, please do as it should resolve such issues)

Did you check your user guide for details on identifying the right key for your product?

(If not, Click here to access the same, look under Page.12 of Chapter 2 - External component identification)

Use the below screenshot for reference:

If the hotkey doesn't work, refer to this related post to resolve the issue: Click here for steps (the same steps will work for windows 10 as well)

Keep me posted, as I (Or a trusted colleague) shall follow-up on this case to ensure the concern has been addressed, 

And your device is up and running again, only in case you don't get back to us, first! 

Keep me posted, how it goes!

If the information provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Thank you for joining the HP Community.

Have a great day!

Cheers:)

[friendd909]

Thanks for the info but unfortunately not of that worked. All windows updates are installed, power settings are already set to balanced and the device manager driver is up to date. 

Any further suggestions?

[Raj1788]

@friendd909

Let's try running a hardware test on the keyboard using the UEFI menu.

1. Turn on the computer.

2. Immediately press the f2 key repeatedly, about once every second, until the UEFI menu opens.

When the UEFI menu opens, select the diagnostic test you want to run, and then follow the on-screen instructions.

Keep me posted with the test results.

Have a great day!

Cheers 🙂

[friendd909]

Thanks - it passed ok but still hasn't resolved the issue. When i press the hot keys, it does show the brightness slider as if it is adjusting it but the brightness does not change. Likewise if I try to adjust the brightness via the display settings - I can move the slider but the brightness does not actually change!

[Raj1788]

@friendd909

Let's perform a recover the last known good working bios, then, restart the pc

Click here: https://support.hp.com/in-en/document/c02693833 

Then, use the steps mentioned here to update the BIOS (ONLY IF THERE'S AN ISSUE ON YOUR COMPUTER THAT REQUIRES A FIX AND THE UPDATE IS PROVIDING IT)

Click here: https://support.hp.com/in-en/document/c00042629

Keep me posted, how it goes!

If the information provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!

Cheers:)

[friendd909]

I carried out the BIOS recovery but unfortunately no change! I also checked for BIOS updates but it says I already have up to date drivers! 

[sandytechy20]

@friendd909

I request you to talk to HP support.

They might have multiple options to help you with this.

1. Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true
2. Select the country.
3. Enter the serial of your device.
4. Select the country from the drop-down.
5. Click on "Show Options".
6. Fill the web-form. A case number and phone number will now populate for you.

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others

Cheers.