Screen brightness is not adjustable on Lenovo P51 laptops

Solution Verified - Updated -


In standalone mode (e.g. not docked), the screen contrast is not adjustable using Fn + F5 or Fn + F6 or using the brightness control available on the menu bar.


  • Red Hat Enterprise Linux 7.5
  • Gnome 3.22.2
  • Lenovo Thinkpad P51

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In