Public bug reported:
Environment:
- Hardware: Honor MagicBook
- 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`.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-28-generic 7.0.0-28.28
ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ruslan 4649 F.... pipewire
ruslan 4668 F.... wireplumber
/dev/snd/seq: ruslan 4649 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Jul 25 14:57:24 2026
InstallationDate: Installed on 2026-07-24 (1 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: HONOR ZQC-P
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 xedrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=c5515395-9d5c-4273-82e4-dab646ada3d7 ro quiet splash i8042.dumbkbd=1
i8042.unmask_kbd_data=1 i8042.nopnp=1
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/03/2026
dmi.bios.release: 1.10
dmi.bios.vendor: HONOR
dmi.bios.version: 1.10
dmi.board.asset.tag: N/A
dmi.board.name: ZQC-P-PCB
dmi.board.vendor: HONOR
dmi.board.version: M1020
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: HONOR
dmi.chassis.version: M1020
dmi.ec.firmware.release: 1.10
dmi.modalias:
dmi:bvnHONOR:bvr1.10:bd06/03/2026:br1.10:efr1.10:svnHONOR:pnZQC-P:pvrM1020:rvnHONOR:rnZQC-P-PCB:rvrM1020:cvnHONOR:ct10:cvrM1020:skuC170:pfaHONORMagicBook:
dmi.product.family: HONOR MagicBook
dmi.product.name: ZQC-P
dmi.product.sku: C170
dmi.product.version: M1020
dmi.sys.vendor: HONOR
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "dmesg.log"
https://bugs.launchpad.net/bugs/2161784/+attachment/5986236/+files/dmesg.log
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https://bugs.launchpad.net/bugs/2161784
Title:
Touchpad not working: ACPI Error AE_AML_INTERNAL while loading table
(SSDT:I2C_DEVT)
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