--- Comment #18 from Joey Lee <jlee(a)suse.com> 2011-09-15 12:15:51 UTC ---
(In reply to comment #14)
(In reply to comment #13)
Again, this is a machine that have EC firmware
problem to handle the brightness
level. If the EC firmware works fine, then don't need add acpi_osi=Linux:
To verify it we might need to install Windows (better be Windows 7) on it and
see if brightness works. But It's not worth for doing it IMO. :)
Install Windows might not be work, because we need Acer's windows 7 preload
image, not just install a standard windows 7.
At least download the Windows 7 video driver from acer website and install it.
Then compare the brightness control function before acer's driver installed and
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