Question Windows 10 brightness control issue

[Vicky@vicks]

Hi everyone,
I have Lenovo ThinkPad t450s, pari installed windows 10 pro,
I am facing issues with brightness control
Brightness control slider can't find in display settings & windows 10
Hot keys are not working can't adjust the brightness (fn+ f5,f6) not responding when I press the keys.
I tried to update the display drivers &PNP moniter drivers , tried to disabled & enabled drivers won't works.
And also reinstall windows 10 & windows 11 but won't works
(But hot keys are works in Linux operating system)

Please help me to fix it.

 

[helpstar]

install the acpi/power management driver, the graphics card/chip driver and the chipset driver

eventually try the automatic driver installer
https://pcsupport.lenovo.com/us/en/...pad-t-series-laptops/thinkpad-t450s/downloads
press "scan now"

 

[Vicky@vicks]

install the acpi/power management driver, the graphics card/chip driver and the chipset driver

eventually try the automatic driver installer
https://pcsupport.lenovo.com/us/en/...pad-t-series-laptops/thinkpad-t450s/downloads
press "scan now"

I tried but won't works

 

[helpstar]

try this driver, found it in software and utilities
https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t450s/downloads/ds120449-hotkey-features-integration-for-windows-10-64-bit-thinkpad?category=Software and Utilities

 

[Vicky@vicks]

Hello everyone,
I have Lenovo ThinkPad t450s laptop, I recently replaced laptop lcd display, after replaced brightness control won't work in windows operating system, for Linux everything works.
How to fix it any one have any idea about that.
Thanks

 

[Lutfij]

Stick to one thread, please!