Have another test on B550 # watch --interval=1 cat /sys/class/backlight/acpi_video0/brightness
The brightness level is from 0 to 10 and each time I press the brightness hotkey, it will in/decrease by 2. -- brightness hotkeys not functional on Lenovo Ideapad u450p https://bugs.launchpad.net/bugs/571421 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
