https://bugzilla.kernel.org/show_bug.cgi?id=221787
Bug ID: 221787
Summary: Touchpad not working: ACPI Error AE_AML_INTERNAL
(SSDT:I2C_DEVT) on Honor MagicBook
Product: ACPI
Version: 2.5
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Config-Interrupts
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 310508
--> https://bugzilla.kernel.org/attachment.cgi?id=310508&action=edit
dmesg.log
Environment:
- Hardware: Honor MagicBook Pro 14 2026 HONOR ZQC-P Intel® Core™ Ultra X9 388H
× 16
- OS: Ubuntu (Kernel 7.0.0-28-generic)
- Subsystem: ACPI / I2C HID
Description of the issue:
The touchpad on the laptop is completely unresponsive. During system boot, the
kernel fails to load the SSDT table for I2C_DEVT due to an internal AML error
(`AE_AML_INTERNAL`).
Relevant dmesg log:
[ 0.004274] ACPI: SSDT 0x000000006FF5B000 005C9C (v02 HONOR I2C_DEVT 00001000
INTL 20200717)
[ 0.171024] ACPI Error: AE_AML_INTERNAL, (SSDT:I2C_DEVT) while loading table
(20251212/tbxfload-189)
Steps to reproduce:
1. Boot Linux kernel on Honor MagicBook.
2. Observe touchpad not working in OS.
3. Check `dmesg` output for ACPI errors related to `I2C_DEVT`.
Additional notes:
Attached is the full `dmesg` output from the boot session.
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