I'm having basically the same problem since installing 2.6.27-11 on my Thinkpad X301. I haven't noticed any slowness in the power manager brightness meter, which goes up and down as normal, but it doesn't change the screen brightness at all.
Running xrandr --output LVDS --set BACKLIGHT_CONTROL native enables the Fn Up and Down keys to control the screen brightness (though it's flaky), so it's not a hardware issue. -- Brightness function broken by 2.6.27-11-generic https://bugs.launchpad.net/bugs/322468 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
