hybrid-graphics-linux team mailing list archive

[James Loosli <loosli@xxxxxxxxx>]

Hey guys,

I'm super super new to linux, but I'm really excited to learn. I just
bought a Dell XPS 15 (Sandybridge i7 with Nvidia 525M) and while
troubleshooting the video issues I was having, I learned about this
project.

I'd really love it if someone could point me in the right direction as far as;

1. Installing the Intel onboard HD drivers
2. Installing the *right* nvidia driver and disabling it (turning it
on kills the GUI)
3. Installing the correct switcheroo package.

Thanks in advance!

James
loosli@xxxxxxxxx



On Mon, Apr 11, 2011 at 8:36 PM, Alex Williamson
<alex.l.williamson@xxxxxxxxx> wrote:
> I've been trying to get hybrid graphics switching working on an Asus
> UL30VT (i915/g210m).  With Dave's latest tree and the attached patch
> (sorry, not used to sending patches via gmail), I can switch between
> and power off either adapter.  The trouble is, the nvidia only
> displays out the HDMI port.  I notice mxm_wmi_call_mxds() calls
> function 0x5344584D, which I do not have.  I found a T410s DSDT that
> shows this function doing this:
>
> Method (WMMX, 3, NotSerialized) {
>    ...
>    If (LEqual (FUNC, 0x5344584D)) {
>        If (LGreaterEqual (SizeOf (Arg2), 0x08)) {
>            If (LEqual (Arg1, 0x10)) {
>                Return (\_SB.PCI0.VID.MXDS (XARG))
>            } Else {
>                Return (\_SB.PCI0.PEG.VID.MXDS (XARG))
>            }
>        }
>    }
>
> So just a wrapper for the MXDS methods, which I do have (from my DSDT):
>
> Scope (_SB.PCI0.P0P1.VGA) {
>    ...
>    Method (MXDS, 1, NotSerialized) {
>        If (And (Arg0, Zero)) {
>            Return (HLMX)
>        } Else {
>            Store (One, HLMX)
>            Store (One, HCMX)
>            SGPL (0x34, One, Zero)
>            Sleep (0x64)
>            ^^^SBRG.EC0.SPIN (0x1F, One)
>        }
>    }
>
> And another reversed polarity version under _SB.PCI0.VGA.  There are
> no obvious references to these methods elsewhere in the DSDT.  Are
> these still part of the WMI interface (which I really don't
> understand)?  I'm not sure if I should be attempting to call these
> directly or dig deeper into WMI code.  Any guidance?
>
> BTW, anyone with one of these laptops, backlight support works if you
> boot with 'acpi_osi="Linux" acpi_osi="!Windows 2009"'.  I have yet to
> debug that one.  Thanks,
>
> Alex
>
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