https://bugzilla.kernel.org/show_bug.cgi?id=28762
Summary: Hotkey[Fn+F5/F6] can't adjust brightness
Product: ACPI
Version: 2.5
Kernel Version: 2.6.35.7
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Regression: No
Created an attachment (id=47102)
--> (https://bugzilla.kernel.org/attachment.cgi?id=47102)
2.6.35.7 kernel configuration
I encounter a problem that the brightness can't be adjusted when I press
Fn+F5/F6 (brightness up/down) in Asus K52J machine.
I debug this problem when I change kernel command line options (acpi_backlight
and acpi_display_output) from "vendor" to "video", and this problem is fixed.
I don't know whether the backlight device module (asus-laptop) causes this
problem, but the same asus-laptop module don't occur this problem in Asus K42JR
machine.
I hope that I can understand the reason of this problem.
Thank you for your help.
PS: In K52J machine : Fn+F5/F6 can work when enter BIOS setup window
PS2: In K42JR machine : Fn+F5/F6 can't work when enter BIOS setup window
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