hybrid-graphics-linux team mailing list archive

Re: Proper ON method for PEGP _DSM ACPI calls?

From: Eric Appleman <erappleman@xxxxxxxxx>
Date: Sun, 23 Oct 2011 09:17:34 -0400
Cc: hybrid-graphics-linux@xxxxxxxxxxxxxxxxxxx
In-reply-to: <CALBR5ZxRP9CnEfJ9R7_YHG2SD4nv4ZKd1K4NTgQXXm7Byb1BVw@mail.gmail.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111022 Thunderbird/8.0

I appreciate the write-up.

It seems that DSM can turn the card off and on by itself using the firstvalue of Arg3, not the last.

\_SB.PCI0.PEG0.PEGP._DSM{0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0}0x100 0x3 {0x2,0x0,0x0,0x0}

\_SB.PCI0.PEG0.PEGP._DSM{0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0}0x100 0x3 {0x1,0x0,0x0,0x0}


The latter is the "on", but modprobe still won't load the drivers.