brightness not working even in settings

[Zer0Reddy]

Im having this problem for a whole year and finally decided to ask here.
i was having this problem after reinstalling windows 11 is im not wrond and since then it is stuck on maxbrightness but it is at min bright ness during the load screen and is working when i was trying arch. plz help me fix this and it started when it said that OddUtldr.sys driver failed to load

[zoey7886]

@Zer0Reddy, Welcome to the HP Support Community!  

Thanks for reaching out about your query regarding brightness not working! 

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

Here are some general troubleshooting steps you could try:

Update Graphics Drivers: Ensure that your graphics card drivers are up-to-date. You can do this via the Device Manager in Windows or by visiting the manufacturer’s website for your graphics card.

Check Power Settings: Go to Settings > System > Power & Sleep > Additional Power Settings. Make sure that the power plan settings are correct and that you have not disabled adaptive brightness.

Reinstall Monitor Drivers: In Device Manager, head to the Monitors section, right-click your monitor, and choose 'Uninstall device'. Restart your computer, and Windows should automatically reinstall the driver.

Windows Updates: Ensure your Windows system is up-to-date as sometimes newer updates can fix existing bugs.

Check BIOS Settings: Occasionally, brightness settings can be influenced by BIOS settings. Make sure your BIOS settings are up to date and configured correctly.  

Hope this helps! 

Take care, and have an amazing day!  

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Regards,