Talk:Lenovo ThinkPad X230

https://bbs.archlinux.org/viewtopic.php?id=155102

Backlight control keys

acpi_osi="!Windows 2012" was required for me to get backlight keys functioning on my X230, but it does in fact enable the full 16 steps of brightness range.

--Freon (talk) 15:31, 13 December 2017 (UTC)