[Kernel-packages] [Bug 1944435] Re: Backlight on P17 Gen 1 not working Nvidia 470

I have a P17 Gen1 and can confirm that after upgrade to BIOS N30ET45W(1.28) backlight control (Fn+F5/Fn+F6) is working now. tested on several OS versions, Xubuntu 21.10 and 22.04, Ubuntu 21.10 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed

[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450

I can confirm for Lenovo Thinkpad (P15/P17/T15g/T15p/P15v Gen 1) that backlight control is working now since the last BIOS update Version 1.28 below excerpt from the readme file: CHANGES IN THIS RELEASE Version 1.28 [Important updates] Update includes a security fix. [New functions or enha