Comment 20 for bug 773471

Just in case it helps, i also upgraded my Acer Aspire 5732Z to 11.04 from 10.10 and got the same dim, almost black screen. The first time i entered in recovery mode, brightness was OK, but only that first time.

Rolling back to 10.10 I've realized that brightness control (Fn + left || right arrows) never worked before. The brightness display, with a sun symbol on it, does pop up. The level bar on it goes left or right according to the arrow keys. But the brightness doesn't vary at all. Default level seems to be the brightest.

My another laptop's upgrade to 11.04 works perfectly (with regard to screen backlight).