I parsed the dsdt you provided, I does indeed find the touchpad device
definition under i2c0, it is synaptic product...
CreateWordField (SBFB, \_SB.PCI0.I2C0.TPD0._Y24._ADR, BADR) //
_ADR: Address
CreateDWordField (SBFB, \_SB.PCI0.I2C0.TPD0._Y24._SPE, SPED) //
_SPE: Speed
CreateWordField (SBFG, 0x17, INT1)
CreateDWordField (SBFI, \_SB.PCI0.I2C0.TPD0._Y25._INT, INT2) //
_INT: Interrupts
Method (_INI, 0, NotSerialized) // _INI: Initialize
{
If ((OSYS < 0x07DC))
{
SRXO (GPDI, One)
}
INT1 = GNUM (GPDI)
INT2 = INUM (GPDI)
If ((SDM0 == Zero))
{
SHPO (GPDI, One)
}
If ((SDS0 == One))
{
_HID = "SYNA2393"
HID2 = 0x20
Return (Zero)
}
If ((SDS0 == 0x02))
{
_HID = "06CB2846"
HID2 = 0x20
Return (Zero)
}
If ((SDS0 == 0x05))
{
_HID = "CUST0001"
HID2 = TPDH /* \TPDH */
BADR = TPDB /* \TPDB */
If ((TPDS == Zero))
{
SPED = 0x000186A0
}
If ((TPDS == One))
{
SPED = 0x00061A80
}
If ((TPDS == 0x02))
{
SPED = 0x000F4240
}
Return (Zero)
}
}
Name (_HID, "XXXX0000") // _HID: Hardware ID
Name (_CID, "PNP0C50" /* HID Protocol Device (I2C bus) */) //
_CID: Compatible ID
Name (_S0W, 0x03) // _S0W: S0 Device Wake State
Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
{
If ((Arg0 == HIDG))
{
Return (HIDD (Arg0, Arg1, Arg2, Arg3, HID2))
}
If ((Arg0 == TP7G))
{
Return (TP7D (Arg0, Arg1, Arg2, Arg3, SBFB, SBFG))
}
Return (Buffer (One)
{
0x00 // .
})
}
Method (_STA, 0, NotSerialized) // _STA: Status
{
If (((SDS0 == 0x05) || ((SDS0 == One) || (SDS0 == 0x02))))
{
Return (0x0F)
}
Return (Zero)
}
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
If ((OSYS < 0x07DC))
{
Return (SBFI) /* \_SB_.PCI0.I2C0.TPD0.SBFI */
}
If ((SDM0 == Zero))
{
Return (ConcatenateResTemplate (SBFB, SBFG))
}
Return (ConcatenateResTemplate (SBFB, SBFI))
}
}
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https://bugs.launchpad.net/bugs/2112220
Title:
ASUS X555UB touchpad not detected on Ubuntu 24.04 with kernel
6.8.0-40-generic
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2112220/+subscriptions
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