http://bugzilla.novell.com/show_bug.cgi?id=570065
http://bugzilla.novell.com/show_bug.cgi?id=570065#c6
--- Comment #6 from Thomas Renninger 2010-01-19 11:29:21 UTC ---
Hmm, strange. The needed functions are there and if you use
/sys/class/backlight/sony
to change backlight and it does not work, there is not much we can do.
This machine does some things different on Vista/Windows7, so you can give:
acpi_osi="!Windows 2006"
_OSI("Windows 2009") does not yet return true on 2.6.31 (but it does on
2.6.32). If you test this and it does work, keep in mind that on newer kernels
this might not work anymore.
Otherwise you may want to wait for a newer BIOS. I don't see why this should
not work on Linux (or Mattia knows about a sony-laptop mainline bug in
2.6.31?).
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