Comment 11 for bug 512567

Revision history for this message
James Graves (jgraves) wrote : Re: hotkeys adjust brightness non-monotonically on EEEPC 1005PE

The "acpi_osi=Linux" option is not working too well for me.

Just purchased a Eee PC 1005PEB-RRED01S (the red one with the 250GB SATA HD). Installed UNR 9.10 alongside Win7. I also just upgraded the BIOS to 0706 (was 0604).

Using the hotkeys, I am able to adjust the brightness level of the backlight in a monotonic fashion (though not really linear, but that is a minor quibble).

However, after adjusting the brightness, the backlight will sometimes go dim after a few seconds. If I adjust it back to a normal level, it will sometimes go back to the dim setting again.

I have disabled Gnome option to automatically dim the screen, because at first I thought that was the problem, but that didn't change the above behavior.

Without the "acpi_osi=Linux" I definitely do not see this behavior, the backlight adjustment is again non-monotonic, but the backlight brightness does not change unexpectedly without user input.