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Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > Hi Armin, > > On Wed, Jun 17, 2026 at 10:33 PM, Armin Wolf wrote: >> could you share the output of "acpidump" on your device? I suspect that Asus >> uses a _DSM control method to tell Windows to invert the polarity inside the >> ActiveBoth check. >> > I have extracted and decompiled the ACPI tables (DSDT and SSDTs) from acpidump. > You can find the raw acpidump.out and the decompiled ASL tables in the > following Google Drive folder: > https://drive.google.com/drive/folders/1aTqLAnUhrTsPdpA8tfOFyRopG3P3DGnc?usp=drive_link > > As far as I can see/understand there is no _DSM method defined under the > GPIO controller device (AMDI0030) or the \_SB.GPIO scope. > > Under the _AEI method (defined in SSDT9 line 188-193), pin 21 (0x15) and > pin 24 (0x18) are defined as: > > GpioInt (Edge, ActiveBoth, ExclusiveAndWake, PullNone, 0x0000, > "\\_SB.GPIO", 0x00, ResourceConsumer, , > ) > { > 0x0015 // Pin 21 (Touchpad attention line) > } > > When triggered, they evaluate the _EVT method which calls: > Case (0x15) > { > \_SB.PCI0.SBRG.HNC0 (0x15, Zero) > } > > Since Arg1 is Zero, HNC0 executes the Else branch, invoking M009 and ATKM/ADTM, > which stalls synchronously for ~36 seconds when executed during the probe path at > boot time. I traced the _EVT for pin 21 through the dumps: _EVT(0x15) → \_SB.PCI0.SBRG.HNC0(0x15, Zero). With Arg1==0 it takes the Else branch: M009(), then Notify(^^GPP0.PEGP, 0x81) "Information Change" to the dGPU, then ATKM(0xC0)/ADTM(). So this _AEI event is dGPU/graphics‑related (it notifies PEGP), not the touchpad — the earlier "touchpad" characterization is incorrect. The touchpad (TPD0, _HID "ASUE1416", _CID "PNP0C50") has its own GpioInt() in its _CRS on a different line (pin 0x08, Level/ActiveLow). The ~36 s stall is consistent with these synchronous MMIO reads + dGPU notify \running in the boot probe path while the GPU isn't ready (no explicit Sleep in the path; a trace_method_name on HNC0/M049 would confirm the exact blocking access). Either way, running this AML synchronously at boot is the firmware issue the no_edge_events_on_boot quirk works around. Could you update the commit message accordingly — in particular, drop the "touchpad" wording, since pin 21's _AEI event is the dGPU notify path, not the touchpad? Thanks, -- Basavaraj > Thanks, > Marco