Calling all hotkey expertise...

[Herton Ronaldo Krzesinski]

Em Qui, 2011-02-10 às 19:58 -0200, Herton Ronaldo Krzesinski escreveu:
> - Video output switch
> only on newer bioses, and same as brightness keys, but bios disables its
> handling only if system is Windows 7 or newer, so you have to pass
> acpi_osi="!Windows 2009" on kernel command line.

Looking now, these are some bug reports related to this:
https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/508847   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/539477

> This is because recommendation Microsoft does to the vendors. I don't
> fully understand it, but the acpi_osi parameters make the bios take
> control again and are workarounds.
> 

Also, I remembered now that there is a interesting thread with the guide
written by Thomas Renninger, but not only limited to hotkeys though, yet
may help as reference:
http://lkml.org/lkml/2008/7/24/291

I already tried too to find some documentation from Microsoft about any
of these too, but so far nothing specific, anyway could be interesting
to look at some pages like
http://www.microsoft.com/whdc/archive/_OSI-method.mspx , there are
others. As Linux advertises in acpi_osi as being windows (upstream
policy), it may be useful when having bugs like these.

> > 
> > If you have *any* useful info, please can you forward it to me.  I may
> > even get around to compiling it all into a Wiki page.
> > 
> > Thanks!
> > 
> > Colin
> > -- 
> > Colin King 
> > Hardware Enablement Team - Kernel Team - Platform Team - Canonical
> > Ubuntu - Linux for human beings | www.ubuntu.com | www.canonical.com
> > 
> > 
> 
> -- 
> []'s
> Herton
> 
> 

-- 
[]'s
Herton