Comment 16 for bug 415023

The errors that get highlighted in red are:

 - using cache for value 62 (probably okay)

 - using cache for value 75 (probably okay)

It seems it's not okay.

I ran gnome-power-manager in a terminal while the screen was flickering, and I got the error (non-verbose mode):

(gnome-power-manager:3346): GLib-GObject-WARNING **: value "nan" of type `gdouble' is invalid or out of range for property `percentage' of type `gdouble'

and while it was flickering I ran

jon@fia:~$ cat /proc/acpi/video/IGD/LCD/brightness
levels: 20 30 40 50 60 70 80 90 100
current: 90
jon@fia:~$ cat /proc/acpi/video/IGD/LCD/brightness
levels: 20 30 40 50 60 70 80 90 100
current: 90
jon@fia:~$ cat /proc/acpi/video/IGD/LCD/brightness
levels: 20 30 40 50 60 70 80 90 100
current: 80
jon@fia:~$ cat /proc/acpi/video/IGD/LCD/brightness
levels: 20 30 40 50 60 70 80 90 100
current: 80

so it looks like the brightness is stuck between two levels, and that a percentage values that are not multiples of 10 cause the screen to flicker. If someone could just figure out a way to round up or round down the percentage values for brightness, that might fix it.