linux-kernel - ACPI BIOS errors causing intermittent boot freezes on Lenovo Legion Pro 5

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Message-ID: <bad391d2-08f8-41d9-9c3e-7d950dc8bdd3@gmail.com>
Date: Wed, 26 Mar 2025 19:22:53 +0100
From: Dominik Pawlik <osemka59@...il.com>
To: linux-acpi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: ACPI BIOS errors causing intermittent boot freezes on Lenovo Legion
 Pro 5

Subject: ACPI BIOS errors causing intermittent boot freezes on Lenovo 
Legion Pro 5

SYSTEM INFORMATION

Hardware:
- Laptop/Desktop Model: Lenovo Legion Pro 5 16IRX9 i9-14900HX
- CPU: i9-14900HX
- BIOS Version: N0CN29WW

Kernel Version: 6.13.8-061308-generic #202503222044
Distribution: Ubuntu 24.10

OBSERVED ISSUE

Description: System freezes intermittently during boot due to ACPI BIOS 
errors.
Errors indicate missing symbols (_TZ.ETMD, _SB.PC00.LPCB.EC0._Q37.PNOT, 
_Q38.PNOT)
in ACPI tables.

Error Logs:
[13:40:52] kernel: ACPI Error: Aborting method \_SB.IETM._OSC due to 
previous error (AE_NOT_FOUND) (20240827/psparse-529)
[13:40:52] kernel: ACPI BIOS Error (bug): Could not resolve symbol 
[\_TZ.ETMD], AE_NOT_FOUND (20240827/psargs-332)
[13:40:21] kernel: ACPI: video: Video Device [GFX0] (multi-head: yes 
rom: no  post: no)
[13:40:21] kernel: ACPI: video: Video Device [PEGP] (multi-head: yes 
rom: no  post: no)
[13:40:21] kernel: ACPI Error: Aborting method \_SB.IETM._OSC due to 
previous error (AE_NOT_FOUND) (20240827/psparse-529)
[13:40:21] kernel: ACPI BIOS Error (bug): Could not resolve symbol 
[\_TZ.ETMD], AE_NOT_FOUND (20240827/psargs-332)
[13:40:21] kernel: ACPI BIOS Error (bug): Could not resolve symbol 
[\_SB.PC00.LPCB.EC0._Q37.PNOT], AE_NOT_FOUND (20240827/psargs-332)
[13:40:21] kernel: ACPI Error: Aborting method \_SB.PC00.LPCB.EC0._Q38 
due to previous error (AE_NOT_FOUND) (20240827/psparse-529)

Full boot logs available in:
- boot_failed_journal.txt (failed boot case)
- boot_succeeded_journal.txt (successful boot case)
- acpidump.txt (ACPI tables)

STEPS TO REPRODUCE
1. Reboot the system
2. Observe ACPI errors during boot (freezes occur intermittently, every 
few boots)

TROUBLESHOOTING ATTEMPTED
- Updated BIOS to latest version (N0CN29WW)
- Tried booting without splash screen (nomodeset)
- Tested with multiple kernel versions (including official)

ADDITIONAL INFORMATION
- Problem persists across different kernel versions
- ACPI tables available in acpidump.txt
- Full logs available upon request

Please let me know if any additional information or testing is needed.

Best regards,
Dominik
View attachment "acpidump.txt" of type "text/plain" (3841524 bytes)

View attachment "boot_suceeded_journal.txt" of type "text/plain" (3275 bytes)

View attachment "boot_failed_journal.txt" of type "text/plain" (4601 bytes)