https://bugzilla.kernel.org/show_bug.cgi?id=16328





--- Comment #7 from Zhang Rui <[email protected]>  2010-07-14 01:51:16 ---
Created an attachment (id=27097)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=27097)
custom _Q14 method

please
1. build the latest upstream kernel with CONFIG_ACPI_DEBUG=y
2. boot with acpi.debug_level=0x02
3. make sure the debugfs is mounted
4. apply the custom _Q14 method by running "cat _Q14 >
/sys/kernel/debug/acpi/custom_method"
5. try to increase the backlight via hotkeys.
6. attach the dmesg output after the test.

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