[Bug 221311] New: ASUS Zenbook S 16 UM5606WA — Touchpad (ELAN1010) becomes unresponsive due to EC state corruption

[Bug 221311] New: ASUS Zenbook S 16 UM5606WA — Touchpad (ELAN1010) becomes unresponsive due to EC state corruption

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221311

            Bug ID: 221311
           Summary: ASUS Zenbook S 16 UM5606WA — Touchpad (ELAN1010)
                    becomes unresponsive due to EC state corruption
           Product: Drivers
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Platform_x86
          Assignee: drivers_platform_x86@kernel-bugs.osdl.org
          Reporter: david@flyboard.ai
        Regression: No

Created attachment 309800
  --> https://bugzilla.kernel.org/attachment.cgi?id=309800&action=edit
dmesg, acpidump, DSDT disassembly, and full ACPI analysis for ELAN1010 touchpad
failure on UM5606WA

On the ASUS Zenbook S 16 UM5606WA (BIOS 318, kernel 6.19.8-200.fc43.x86_64, AMD
Ryzen AI 9 HX 370), the ELAN1010 I2C touchpad intermittently becomes
unresponsive.

The ACPI _STA method for \_SB.I2CC.ETPD returns 0, so i2c-hid-acpi never binds.
The Fn+F7 touchpad toggle hotkey has no effect (no OSD, no EC event). A warm
reboot does not fix it — only a full shutdown (power-off) restores the touchpad
by resetting the EC.

The _STA logic gates on two EC/firmware variables (TPIF and DSYN) that appear
to get corrupted during normal use. No user action triggered the failure.

The DSDT also has pre-existing errors: duplicate named objects on
\_SB.PCI0.GPP4 (_S0W, _PR0, _PR3).

Full ACPI analysis, dmesg, DSDT disassembly, and acpidump attached.

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[Bug 221311] ASUS Zenbook S 16 UM5606WA — Touchpad (ELAN1010) becomes unresponsive due to EC state corruption

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221311

david@flyboard.ai changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|                            |6.19.8-200.fc43.x86_64

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