https://bugzilla.kernel.org/show_bug.cgi?id=36322





--- Comment #11 from Lee, Chun-Yi <j...@novell.com>  2011-05-31 13:37:31 ---
(In reply to comment #10)
> Sorry, took me a while to compile the kernel and to find out why
> /sys/kernel/debug/ is empty.
> 
> ./ec_access -b 0x51 will display values between 0x00 and 0x09; value changes
> when use brightness up/down keys.
> But the actual brightness of my screen does not change.

Thank's for your testing, it's help to confirm our value write to EC register. 

Unfortunately,
I have no idea why the EC didn't change brightness level even the BLVL register
was changed. I will try to trace DSDT hope can dig more information. This issue
MIGHT not related to acer-wmi driver.

I wonder how does the brightness control key works on Windows 7, I thought we
need EC expert's help.

On the other hand, 
For detect wireless/bluetooth device state and killswitch support, I need more
time to clear up current acer-wmi source code to support your machine.

I will attached on acer-wmi patch for support your machine ASAP.

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