BIOS F.28 ACPI Bug Prevents Normal Linux Booting on OMEN Transcend 16 (Ubuntu 24.04)

[CononZXR]

OS: Dual-boot Windows 11 + Ubuntu 24.04 LTS

Issue Summary

There is a firmware ACPI/APIC bug in BIOS F.28 that causes Linux boot failures on modern kernels.

• Normal boot: System hangs/freezes very early (black screen or stuck boot)

• Boot with noapic: System boots, but touchpad and internal speakers do not work (I2C/HID devices missing)

• Windows 11: Works perfectly

• This is clearly a Linux-specific ACPI handling issue

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Evidence & Community Background

This issue is widespread on HP OMEN Transcend 16 models (Intel 13th/14th gen).

• Root cause identified as a buggy DSDT table

• Problematic device:

  • Device (IC04) with HID INTC1072 under _SB.PC00

• This breaks APIC/I2C enumeration on Linux

• Community workaround:

  • Patch the DSDT (remove IC04)

  • Fix Cirrus audio strings

  • Bump DSDT revision

  • Load the custom .aml via GRUB

• Reference repo (tested on BIOS F.27):
  https://github.com/j0hnwang/OMEN-Transcend-16-ACPI-fix

• Recent 2025 reports confirm:

  • The issue still exists

  • No official BIOS fix from HP yet

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What I’ve Done

I followed the community DSDT patching guide using:

• The F.27 patched DSDT as a base

• Manual edits:

  • Removed Device (IC04)

  • Applied Cirrus audio string fixes

Then I loaded the patched dsdt.aml via GRUB without using noapic.

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Current Status

✅ Linux now boots normally (no freeze/hang)
✅ Internal speakers/audio work correctly
❌ Touchpad is still completely non-functional

Details:

• Touchpad is not detected in:

  • xinput

  • /proc/bus/input/devices

  • GNOME Settings

• No I2C HID touchpad entries in dmesg

• Looks like the I2C bus is still partially broken

• Most likely due to DSDT/SSDT differences between BIOS F.27 and F.28

The GitHub repo explicitly states it was tested on BIOS F.27.
I am on BIOS F.28, and downgrading is not possible — F.27 is not supported for my laptop model.

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Request for the Community

Has anyone successfully fixed touchpad detection on BIOS F.28?

Specifically:

• Updated DSDT/SSDT patches for F.28

• Additional devices or I2C controllers that need fixing

• Any kernel parameters or override SSDTs that restore the touchpad

• A confirmed working ACPI patch for this BIOS version

I cannot downgrade to F.27, so I’m looking for a proper F.28-compatible solution.

Any help or guidance would be greatly appreciated.