I have found a normal fix/workaround for the bug, which removes the flicker and still keeps the controls working:
Kernel parameters: "thinkpad-acpi.brightness_enable=0 acpi_backlight=vendor" ** Tags removed: bios-outdated-1.12 ** Tags added: bios-out2 ** Tags removed: bios-out2 ** Tags added: kernel-bug kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1486896 Title: On Lenovo Thinkpad Edge E330, the screen backlight flickers badly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486896/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs