Battery drains ~20% overnight while fully shut down — Multiple ACPI BIOS bugs

[Mina_Adel]

Product Name: HP Victus 16-e1015ne
Product ID: 72T16EA#ABV
BIOS Version: F.25 (latest available)

OS: Debian 13 (Trixie) + Windows 10 dual boot
Issue: ~20% battery drain overnight while fully shut down.

** The following ACPI errors appear at every boot without exception:

Bug 1 — Duplicate AC Adapter Object Definition (Most Critical):

[0.264614] ACPI BIOS Error (bug): Failure creating named object            [\_SB.ACDC], AE_ALREADY_EXISTS (20240827/dswload2-326)[0.264626] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog            (20240827/psobject-220)[0.264633] ACPI: Skipping parse of AML opcode: OpcodeName unavailable            (0x5B82)

The BIOS defines the AC adapter object \_SB.ACDC twice. The second definition fails with AE_ALREADY_EXISTS, causing AML opcode 0x5B82 (Device creation) to be skipped entirely. This leaves the AC adapter object in an incomplete and broken state, directly affecting power management during shutdown and causing the laptop to not reach true S5 (full power off) state.

Bug 2 — Broken WMI Power Management Interface:

[8.501241] ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT,            Index (0x000000032) is beyond end of object            (length 0x32) (20240827/exoparg2-393)[8.515576] ACPI Error: Aborting method \_SB.WMID.WQBZ            (20240827/psparse-529)[8.515961] ACPI Error: Aborting method \_SB.WMID.WQBE            (20240827/psparse-529)[8.541077] hp_bioscfg: Returned error 0x3,            "Invalid command value/Feature not supported"

The BIOS attempts to access index 50 (0x32) of a 50-byte buffer — a classic off-by-one error. This crashes the entire HP WMI power management interface (\_SB.WMID), causing both WQBZ and WQBE methods to abort. The hp_bioscfg driver also fails with error 0x3, confirming the WMI interface is completely non-functional.

Bug 3 — Unresolved WWAN Symbol:

[0.278403] ACPI BIOS Error (bug): Could not resolve symbol            [\_SB.PCI0.GPP2.WWAN], AE_NOT_FOUND            (20240827/dswload2-162)

The BIOS references a WWAN component that does not exist on this model. This suggests HP is using a shared BIOS image across multiple Victus variants without properly configuring it per model.

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Battery Status:

Battery Health:     100% (design capacity matches full capacity)Cycle Count:        54Technology:         Li-ionOvernight Drain:    ~20% per 8 hours while fully shut downNormal drain rate:  Should be 1-3% per day maximum

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Troubleshooting Already Performed:

The following steps were taken to rule out software causes:

• Updated BIOS to latest version F.25 — issue persists
• Disabled Windows Fast Boot completely
• Performed clean shutdown using Windows Shift+Shutdown (forces full S5 state) — issue persists
• Disabled all ACPI wakeup sources in /proc/acpi/wakeup
• Verified _S5 AML object is correctly defined (SLP_TYPa = 0x05)
• Unloaded hp_wmi and hp_bioscfg kernel drivers — issue persists
• Added kernel parameters: mem_sleep_default=deep, acpi_osi=Linux
• Tested on both Windows 10 and Debian 13 Linux — identical drain on both OS

All software-side fixes have been exhausted. The root cause is confirmed to be in the BIOS firmware.

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Root Cause Analysis:

The duplicate \_SB.ACDC definition causes the AC adapter device object to be created incompletely. Combined with the crashed WMI power management interface (\_SB.WMID), the laptop's power circuits are not properly shut down when the OS issues the S5 power-off command, leaving hardware components in a partially powered state and draining the battery overnight.

the dmesg_output :

https://drive.google.com/file/d/1i38FXrGH8u0fienTqinsmXhDKaAH9_ga/view?usp=sharing

the journal output: 

https://drive.google.com/file/d/1qhJNO_sT5cyQseDbxG58vWAFmlynRZeH/view?usp=sharing


if you need any further info . replay to the thread .