Comment 20 for bug 121833

I managed to fix my LCD-turns-off issue by editing my DSDT; it turns out that whoever coded it foolishly used "if LEqual" instead of "if LLessEqual", which meant that any time an invalid brightness value was passed in, the LCD would turn off. I changed the conditions to make more sense, and now I no longer get the horrid blinking.
However, it would be nice if HAL and the kernel would pass correct (as in, not unlisted) brightness values to the ACPI controller. I still don't get why the values of 12, 37, 62, and 87 didn't work, though.