Public bug reported: The keys marked for brightness control on the keyboard are supposed to be Fn+F5 (down) and Fn+F6 (up). But pressing them does not have any effects. Volume control keys Fn+F1 (off), Fn+F2 (down), Fn+F3 (up) all do work, and KDE shows appropriate indicators when they are pressed. I know this is a popular problem with Lenovo laptops. I use Ubuntu 21.04 Hirsute on built-in NVMe, but Ubuntu 20.04 booted from USB flash drive also does not allow me to control screen brightness. Hardware and OS information will be collected on Apport request and attached here.
** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Affects: xorg (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907308 Title: screen brightness up/down keys not working in LENOVO IdeaPad 5 15IIL05 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907308/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs