[BUG] mt7925e: MSI Vector A16 HX A8WHG-004US reports permanent hardware rfkill block under Linux; ACPI GPPA.WLAN AE_ALREADY_EXISTS

[Ross]

Hello, I want to report a wifi bug. This bug makes the wifi hard lock
on my computer under Arch Linux as well as Fedora. Wifi does work on
Linux LTE and Windows 11. The computer is a Vector A16 HX A8WHG-004US
and this it's actually the second I bought. I returned the first one
because of the exact same bug. Since I got the second one I've stuck
it through hoping there would be a fix, it's been three months now.
I've tried all the possible fixes (on both machines), nothing. "sudo
rfkill unblock all" and "sudo rfkill unblock wifi" do not work. There
is no switch in the bios or "airplane mode" hotkey to toggle either.
The wifi just does not work in Linux (apart from LTE). I've updated
the bios to the new version every time a new one drops (including the
most recent one from a couple days ago) and nothing has changed
anything. I've updated everything else frequently. No dice.

Anyway, I suppose this is where I go to file report bugs like this?
I've never issued a bug report before so I'm not sure. Thank you so
much for giving this the time of day, as well as all the other work
you do on the LInux project. If you need further information I'll give
you whatever you need.

I had the following written for me by AI but I can confirm it's
accurate to the problem:


I am reporting what appears to be an MSI-platform-specific MT7925
hard-rfkill issue on Linux.

Hardware
- Laptop: MSI Vector A16 HX A8WHG-004US
- WLAN: MEDIATEK MT7925 802.11be 160MHz 2x2 PCIe Wireless Network
Adapter [14c3:7925]
- Subsystem: Foxconn International, Inc. Device [105b:e138]

Software
- BIOS: E15MMAMS.107
- Kernel: 6.19.6-arch1-1
- linux-firmware: 20260221-1
- Distro: Arch Linux

Problem
- The Wi-Fi device is detected correctly.
- The mt7925e driver binds successfully.
- Firmware appears to load.
- The interface is created/renamed to wlp5s0.
- However, rfkill always reports the WLAN as hard blocked.

Current rfkill state
- Bluetooth: Soft blocked: no / Hard blocked: no
- Wireless LAN: Soft blocked: no / Hard blocked: yes

Attempted commands
- sudo rfkill unblock wifi
- sudo rfkill unblock all

Neither command changes the WLAN hard block.

Relevant observations
- lspci shows:
MEDIATEK Corp. MT7925 802.11be 160MHz 2x2 PCIe Wireless Network
Adapter [Filogic 360] [14c3:7925]
Kernel driver in use: mt7925e
- The boot log shows the device being enabled, ASIC revision detected,
firmware information printed, and the interface renamed from wlan0 to
wlp5s0.
- The same boot log also shows repeated ACPI errors involving WLAN
objects under \_SB.PCI0.GPPA.WLAN..., including repeated
AE_ALREADY_EXISTS failures.

This makes it look like:
- the device is present,
- the mt7925e driver is loading,
- but platform/ACPI state may be forcing or misreporting hardware rfkill.

Relevant kernel log excerpt

mt7925e 0000:05:00.0: enabling device (0000 -> 0002)
mt7925e 0000:05:00.0: ASIC revision: 79250000
mt7925e 0000:05:00.0: HW/SW Version: 0x8a108a10, Build Time: 20260106153007a
mt7925e 0000:05:00.0: WM Firmware Version: ____000000, Build Time:
20260106153120
mt7925e 0000:05:00.0 wlp5s0: renamed from wlan0

ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._S0W], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._S4W], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._DSM], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN.PCIF], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN.NVID], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN.NDID], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN.PWR1], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._PR0], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._PR2], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._PR3], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN.PWFR], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Failure creating named object
[\_SB.PCI0.GPPA.WLAN._PRR], AE_ALREADY_EXISTS

Reproduction
1. Boot Linux normally.
2. Run:
rfkill list all
3. Wireless LAN is always reported as:
Soft blocked: no
Hard blocked: yes

Additional notes
- Windows 11 on the same laptop can use Wi-Fi normally.
- Updating BIOS from E15MMAMS.106 to E15MMAMS.107 did not resolve the issue.
- This may be similar in shape to other MT7925 hard-rfkill issues that
required a machine-specific quirk, but on this MSI model the prominent
clue is the repeated ACPI GPPA.WLAN object collision.

Please let me know if you want:
- full lspci -nnk output
- full dmesg/journalctl -b -k
- acpidump / decoded DSDT
- additional testing with a proposed patch or boot parameter

-- 
Ross Payant