Hi, changing the brightness on my Thinkpad X230 with Intel HD4000 graphics, stopped working after commit 886129a8eebe (ACPI / video: change acpi-video brightness_switch_enabled default to 0). Changing it back to 1, fixes the problem, if "acpi_osi=!Windows 2012" is also set. Before that commit just setting "acpi_osi=!Windows 2012" was enough to get changing the brightness working. With best regards, Julian Wollrath -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
