It's works on a muxless Clevo B7130 intel / nvidia GT425M. It has also been tested<br>on the legacy optimus call, although that crashed X <a href="http://pastebin.com/9Sum3tT3">http://pastebin.com/9Sum3tT3</a><br>That bug is said to be fixed<br>
<a href="http://cgit.freedesktop.org/xorg/xserver/commit/?id=fb22a408c69a84f81905147de9e82cf66ffb6eb2">http://cgit.freedesktop.org/xorg/xserver/commit/?id=fb22a408c69a84f81905147de9e82cf66ffb6eb2</a><br><br><div class="gmail_quote">
2011/12/19 Omar Andrés Zapata Mesa <span dir="ltr"><<a href="mailto:andresete.chaos@gmail.com">andresete.chaos@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Tested on toshiba m645 optimus intel/nvidia 310m<br>output<br>bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.P0P2.VGA_<br>[21832.787656] bbswitch: detected an Optimus _DSM function<br>[21832.787664] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on<br>
but dont work nvidia video card. do it work with not mux optimus?<div><br></div><div><br><div class="gmail_quote"><div><div class="h5">On Sat, Dec 17, 2011 at 5:50 PM, Lekensteyn <span dir="ltr"><<a href="mailto:lekensteyn@gmail.com" target="_blank">lekensteyn@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
Hello guys,<br><div class="gmail_quote"><br>I've prepared a patch based on my findings for the bbswitch module<br>(<a href="https://github.com/Lekensteyn/acpi-stuff/tree/master/bbswitch" target="_blank">https://github.com/Lekensteyn/acpi-stuff/tree/master/bbswitch</a>). This adds a proper<br>
check whether a _DSM function is supported or not and make OFF / ON for<br>vga_switcheroo work for nVidia Optimus models. The patch is based against the<br>mainline kernel.<br><br>It has been tested on my Clevo B7130 laptop running kernel 3.2 which has a GT425M<br>
dGPU:<br># cat /sys/kernel/debug/vgaswitcheroo/switch<br>0:IGD:+:Pwr:0000:00:02.0<br>1:DIS: :Pwr:0000:01:00.0<br># tee /sys/kernel/debug/vgaswitcheroo/switch <<<OFF<br>OFF<br># cat /sys/kernel/debug/vgaswitcheroo/switch<br>
0:IGD:+:Pwr:0000:00:02.0<br>1:DIS: :Off:0000:01:00.0<br># tee /sys/kernel/debug/vgaswitcheroo/switch <<<ON<br>ON<br># cat /sys/kernel/debug/vgaswitcheroo/switch<br>0:IGD:+:Pwr:0000:00:02.0<br>1:DIS: :Pwr:0000:01:00.0<br>
<br>The iGPU/dGPU LEDS on the keyboard also change as a result.<br><br>A second patch to make the device stay off after suspend is in progress.<br><br>Regards,<br>Peter<br>
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<br></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><br>-- <br><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px">Omar Andres Zapata Mesa</span><div>
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