Ubuntu
nvidia-graphics-drivers-455 package

  1. Bug #1905591
  2. Comment #40

Comment 40 for bug 1905591

Revision history for this message
pvdeynse (vandeynse) wrote :

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 enhancements]

    Updated the Diagnostics module to version 04.22.000.
    Update Regulatory Information.

[Problem fixes]

    Fixed an issue where Power-On Password is set by WMI even if Power-On
    Password Control was disabled.
    Fixed an issue where Linux adjust brightness fail in discrete mode.