http://bugzilla.kernel.org/show_bug.cgi?id=12021
------- Comment #15 from [EMAIL PROTECTED] 2008-11-16 16:47 -------
Hi, Alain
From the acpidump it seems that there is no _BCM/_BCL object, which is
required for the backlight interface(/sys/class/backlight/acpi_video*/*).
From the interrupt info in comment #10 and #11 it seems that no ACPI
interrupt is triggered after hotkey is pressed. Maybe the backlight is
controlled by BIOS instead of OS.
Thanks.
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