Touchpad After sleep stop working

[Ardentwheel]

After sleep Touchpad stop working

As we change SHPO (GPDI, Zero) -> SHPO (GPDI, One) to made Touchpad worked,
there's still have warning on the log sudo dmesg | grep -i voodoo

VoodooI2CControllerNub::pci8086,34e8 SSCN not implemented in ACPI tables
VoodooI2CControllerNub::pci8086,34e8 FMCN not implemented in ACPI tables

In OEM DSDT there's SSCN & FMCN

If (USTP) {
Scope (_SB.PCI0.I2C0) {
Method (SSCN, 0, NotSerialized) { Return (PKG3 (SSH0, SSL0, SSD0)) }
Method (FMCN, 0, NotSerialized) { Return (PKG3 (FMH2, FML2, FMD2)) }}}

According #1 VoodooSMBus/VoodooRMI#67 (comment)

the problem seems to be the default clock speed timing of I2C controller
but voodooi2c fine the SSCN & FMCN,
so I change Method SSCN & FMCN to XSCN & XMCN, And add:

External (_SB_.PCI0.I2C3, DeviceObj)
Scope (_SB.PCI0.I2C3)
{
    Name (SSCN, Package (0x03) {
        0x01B0, 
        0x01FB, 
        0x1E
        })
    Name (FMCN, Package (0x03) {
        0x48, 
        0xA0, 
        0x1E
    })
}

warning on the log about not implemented in ACPI tables is gone,

but after sleep Touchpad still stop working, maybe the value not right

Thought Or Suggestion?

@m0d16l14n1
@ben9923
@zhen-zen

[m0d16l14n1]

You can get the rid of that SSCN/FMCN warning if you set USTP to "One" + rename patch, that's how we did that with Ben. Btw, touchpad is working with or without that patch to enable SSCN/FMCN.

But still, there is a problem with touchpad after sleep-wake cycle for sure. I saw, that we have some serial timings for touchpad. Maybe we should play around them?

[m0d16l14n1]

Checked the polling mode - still no touchpad after sleep at all.

[m0d16l14n1]

VoodooI2C/VoodooI2C#399 (comment)

[m0d16l14n1]

Touchpad isn't fixed for that moment, but there is a way to make it work after sleep process.

1. Disable SIP
2. sudo kextunload -b com.alexandred.VoodooI2CHID
   sudo kextunload -b com.alexandred.VoodooI2C
3. Navigate to the directory with the kexts
   sudo chown -R root:wheel VoodooI2C.kext VoodooI2CHID.kext
   sudo kextutil -d VoodooI2C.kext VoodooI2CHID.kext

I will try to automate that process after sleep, to not to do that manually after every wake process. I will attach script, once it done.

[m0d16l14n1]

Big update!

VoodooI2C/VoodooI2C#399 (comment)

[m0d16l14n1]

Fixed in VoodooI2C/VoodooI2CHID#45