Right investigating further: On my machine /sys/class/backlight/mbp_backlight is a symlink to /sys/devices/virtual/backlight/mbp_backlight
In there the max brightness value is 15. And the lowest value (experimental) is 0. echo 0..15 into the brightness file in the above mentioned folder changes the screen brightness correctly gradually. So the problem is somewhere higher level with whatever thing is called when I press the brightness up/down keys. ** Summary changed: - [regression since lucid] LCD backlight brightness steps are inconsistent + [regression since lucid] LCD backlight brightness steps are inconsistent, echo XX > brightness works fine -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/619726 Title: [regression since lucid] LCD backlight brightness steps are inconsistent, echo XX > brightness works fine -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
