Brightness increase/decrease buttons not working in Windows 11

[Elektronyx97]

When trying to increase or decrease my brightness, I normally hit F6 to decrease or F7 to increase. However, this feature has stopped working. The brightness slider at the bottom pops up when I click F6/7. However, it can only be decreased by one length when I click F6, which is what is supposed to happen when you click F6 once, but even when I press it multiple times/hold it down it does not decrease any further. When I click F7, the brightness slider length does not change at all, unless I have clicked F6 before. More importantly, the actual brightness of the screen does not change at all w

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