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86cae88
2011 Dec 17
1
properly check for _DSM function support and Optimus support for vga_switcheroo
Hello guys,
I've prepared a patch based on my findings for the bbswitch module
(https://github.com/Lekensteyn/acpi-stuff/tree/master/bbswitch). This adds
a proper
check whether a _DSM function is supported or not and make OFF / ON for
vga_switcheroo work for nVidia Optimus models. The patch is based against
the
mainline kernel.
It has been tested on my Clevo B7130 laptop running kernel 3.2