Windows 10: Unable to adjust screen brightness after Windows 10 Pro 1803 upgrade

I have an old Lenovo T510 laptop running Windows 10 Pro. Yes, I know, it doesn't officially support Windows 10. But I've been running Window 10 Pro on it happily and reliably for quite some time.... Until just now when I upgraded to version 1803.

Right after the upgrade I noticed my screen was very bright. I found that I am unable to adjust it at all using the keyboard brightness controls or the control panel. It's always at 100% bright even though the brightness control slider goes where ever I tell it. I've searched and tried some of the suggestions about uninstalling the driver and reinstalling, etc, but nothing has worked. I'd say the driver has a compatibility issue, but it was working just fine before 1803.

Does anyone have any suggestions on things to try before I take my chances on a roll-back of the 1803 upgrade?

:)

 

Inability to adjust screen brightness after installing Windows 10

I have just upgraded my Hp Spectre x360 13-4001dx laptop from Windows 8.1 to Windows 10. However, I am now unable to adjust the brightness of my screen. It is presently not bright enough for me and I have not succeeded in using either the hotkeys or screen
display to increase the brightness. The present brightness adjusts neither upwards or downwards.

 

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