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Bug#1109015: Wifi not working anymore with new atheros firmware from experimental

Started byBastian Venthur <venthur@debian.org>
First post2025-07-09 17:30 +0200
Last post2025-08-18 14:20 +0200
Articles 8 — 4 participants

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  Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Bastian Venthur <venthur@debian.org> - 2025-07-09 17:30 +0200
    Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Bastian Venthur <venthur@debian.org> - 2025-07-09 18:00 +0200
    Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Ben Hutchings <ben@decadent.org.uk> - 2025-07-10 13:10 +0200
      Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Bastian Venthur <venthur@debian.org> - 2025-07-10 14:10 +0200
        Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Ben Hutchings <benh@debian.org> - 2025-07-10 16:00 +0200
        Bug#1109015: Wifi not working anymore with new atheros firmware from experimental Ben Hutchings <ben@decadent.org.uk> - 2025-08-15 22:00 +0200
    Processed: Re: Bug#1109015: Wifi not working anymore with new  atheros firmware from experimental "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-07-10 13:10 +0200
    Bug#1109015: marked as done (Wifi not working anymore with new  atheros firmware from experimental) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-08-18 14:20 +0200

#88291 — Bug#1109015: Wifi not working anymore with new atheros firmware from experimental

FromBastian Venthur <venthur@debian.org>
Date2025-07-09 17:30 +0200
SubjectBug#1109015: Wifi not working anymore with new atheros firmware from experimental
Message-ID<L6EU9-god5-7@gated-at.bofh.it>
Package: firmware-atheros
Version: 20250708-1
Severity: grave
X-Debbugs-Cc: venthur@debian.org


With latest update from atheros firmware, the wifi stopped working completely.
I believe the relevant output for dmesg is:

[   14.618942] ath12k_pci 0000:c2:00.0: BAR 0 [mem 0xb0600000-0xb07fffff 64bit]: assigned
[   14.618964] ath12k_pci 0000:c2:00.0: enabling device (0000 -> 0002)
[   14.619469] ath12k_pci 0000:c2:00.0: MSI vectors: 16
[   14.619473] ath12k_pci 0000:c2:00.0: Hardware name: wcn7850 hw2.0
[   14.620039] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
[   14.620050] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
[   14.620055] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
[   15.292124] ath12k_pci 0000:c2:00.0: chip_id 0x2 chip_family 0x4 board_id 0xff soc_id 0x40170200
[   15.292133] ath12k_pci 0000:c2:00.0: fw_version 0x1108811c fw_build_timestamp 2025-05-17 00:21 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
[   15.292494] ath12k_pci 0000:c2:00.0: invalid ACPI DSM TAS config size: 1
[   15.292496] ath12k_pci 0000:c2:00.0: failed to get ACPI TAS config table: -22
[   15.578459] ath12k_pci 0000:c2:00.0: ignore reset dev flags 0x212
[   20.480632] ath12k_pci 0000:c2:00.0: failed to receive wmi unified ready event: -110
[   20.481467] ath12k_pci 0000:c2:00.0: failed to start core: -110
[   20.483870] ath12k_pci 0000:c2:00.0: qmi failed to send mode request, mode: 4, err = -5
[   20.483872] ath12k_pci 0000:c2:00.0: qmi failed to send wlan mode off

It also does not work with the firmware from unstable (maybe the device is too
new?) but it used to work with some version from experimental.

-- System Information:
Debian Release: 13.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.15-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

firmware-atheros depends on no packages.

firmware-atheros recommends no packages.

Versions of packages firmware-atheros suggests:
ii  initramfs-tools  0.148.3

-- no debconf information

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#88292

FromBastian Venthur <venthur@debian.org>
Date2025-07-09 18:00 +0200
Message-ID<L6Fnb-gooq-1@gated-at.bofh.it>
In reply to#88291
Package: firmware-atheros
Version: 20250410-2
Followup-For: Bug #1109015
X-Debbugs-Cc: venthur@debian.org

Actually, wifi does work with the version from unstable. I think I had to
downgrade the whole firmware-free/non-free to unstable to make it work again.


-- System Information:
Debian Release: 13.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.15-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

firmware-atheros depends on no packages.

firmware-atheros recommends no packages.

Versions of packages firmware-atheros suggests:
ii  initramfs-tools  0.148.3

-- no debconf information

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#88311

FromBen Hutchings <ben@decadent.org.uk>
Date2025-07-10 13:10 +0200
Message-ID<L6Xk5-gAFU-1@gated-at.bofh.it>
In reply to#88291

[Multipart message — attachments visible in raw view] — view raw

Control: tag -1 moreinfo upstream

Hi Bastian,

On Wed, 2025-07-09 at 17:25 +0200, Bastian Venthur wrote:
[...]
> With latest update from atheros firmware, the wifi stopped working completely.
> I believe the relevant output for dmesg is:
> 
> [   14.618942] ath12k_pci 0000:c2:00.0: BAR 0 [mem 0xb0600000-0xb07fffff 64bit]: assigned
> [   14.618964] ath12k_pci 0000:c2:00.0: enabling device (0000 -> 0002)
> [   14.619469] ath12k_pci 0000:c2:00.0: MSI vectors: 16
> [   14.619473] ath12k_pci 0000:c2:00.0: Hardware name: wcn7850 hw2.0
> [   14.620039] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
> [   14.620050] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
> [   14.620055] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)

(This file was never included in the package, so these messages don't
seem to indicate a regression.)

> [   15.292124] ath12k_pci 0000:c2:00.0: chip_id 0x2 chip_family 0x4 board_id 0xff soc_id 0x40170200
> [   15.292133] ath12k_pci 0000:c2:00.0: fw_version 0x1108811c fw_build_timestamp 2025-05-17 00:21 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> [   15.292494] ath12k_pci 0000:c2:00.0: invalid ACPI DSM TAS config size: 1
> [   15.292496] ath12k_pci 0000:c2:00.0: failed to get ACPI TAS config table: -22
> [   15.578459] ath12k_pci 0000:c2:00.0: ignore reset dev flags 0x212
> [   20.480632] ath12k_pci 0000:c2:00.0: failed to receive wmi unified ready event: -110
> [   20.481467] ath12k_pci 0000:c2:00.0: failed to start core: -110
> [   20.483870] ath12k_pci 0000:c2:00.0: qmi failed to send mode request, mode: 4, err = -5
> [   20.483872] ath12k_pci 0000:c2:00.0: qmi failed to send wlan mode off
[...]

Other firmware files under ath12k/WCN7850/hw2.0 changed in upstream
versions 20250509 and 20250613.

Can you please test version 20250509-1 (from snapshot.debian.org) so we
can tell which of the 2 updates broke this?

Also please provide the output of "lspci -nnvv -s 0000:c2:00.0".

Ben.

-- 
Ben Hutchings
Never attribute to conspiracy what can adequately be explained
by stupidity.

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#88320

FromBastian Venthur <venthur@debian.org>
Date2025-07-10 14:10 +0200
Message-ID<L6Yg9-gBi1-1@gated-at.bofh.it>
In reply to#88311

[Multipart message — attachments visible in raw view] — view raw

BTS, does not like my private email address, resending.

On 10.07.25 13:03, Ben Hutchings wrote:
> Other firmware files under ath12k/WCN7850/hw2.0 changed in upstream
> versions 20250509 and 20250613.
> 
> Can you please test version 20250509-1 (from snapshot.debian.org) so we
> can tell which of the 2 updates broke this?

20250509 also does not work. Note, I simply updated the single
firmware-atheros_20250509-1_all.deb and not firmware-nonfree etc so it 
did not trigger the initrd update. I don't know if this is relevant here 
so I mention it just in case.


> Also please provide the output of "lspci -nnvv -s 0000:c2:00.0".

Sure thing, see the attachment.


Thanks for taking care,

Bastian

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#88321

FromBen Hutchings <benh@debian.org>
Date2025-07-10 16:00 +0200
Message-ID<L6ZYB-gCcb-1@gated-at.bofh.it>
In reply to#88320

[Multipart message — attachments visible in raw view] — view raw

Hi all,

Debian received a regression report for a recent update to the WCN7850:

On Wed, 2025-07-09 at 17:25 +0200, Bastian Venthur wrote:
[...]
> With latest update from atheros firmware, the wifi stopped working completely.
> I believe the relevant output for dmesg is:
> 
> [   14.618942] ath12k_pci 0000:c2:00.0: BAR 0 [mem 0xb0600000-0xb07fffff 64bit]: assigned
> [   14.618964] ath12k_pci 0000:c2:00.0: enabling device (0000 -> 0002)
> [   14.619469] ath12k_pci 0000:c2:00.0: MSI vectors: 16
> [   14.619473] ath12k_pci 0000:c2:00.0: Hardware name: wcn7850 hw2.0
> [   14.620039] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
> [   14.620050] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
> [   14.620055] ath12k_pci 0000:c2:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2)
> [   15.292124] ath12k_pci 0000:c2:00.0: chip_id 0x2 chip_family 0x4 board_id 0xff soc_id 0x40170200
> [   15.292133] ath12k_pci 0000:c2:00.0: fw_version 0x1108811c fw_build_timestamp 2025-05-17 00:21 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00284.1-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> [   15.292494] ath12k_pci 0000:c2:00.0: invalid ACPI DSM TAS config size: 1
> [   15.292496] ath12k_pci 0000:c2:00.0: failed to get ACPI TAS config table: -22
> [   15.578459] ath12k_pci 0000:c2:00.0: ignore reset dev flags 0x212
> [   20.480632] ath12k_pci 0000:c2:00.0: failed to receive wmi unified ready event: -110
> [   20.481467] ath12k_pci 0000:c2:00.0: failed to start core: -110
> [   20.483870] ath12k_pci 0000:c2:00.0: qmi failed to send mode request, mode: 4, err = -5
> [   20.483872] ath12k_pci 0000:c2:00.0: qmi failed to send wlan mode off
[...]

(Debian applies a patch that adds the "firmware: failed to load" log
message but doesn't make any functional changes.)

The change was between 20250410 and 20250708, so I asked Bastian to also
test 20250509:

On Thu, 2025-07-10 at 13:51 +0200, Bastian Venthur wrote:
[...]
> 20250509 also does not work. Note, I simply updated the single
> firmware-atheros_20250509-1_all.deb and not firmware-nonfree etc so it 
> did not trigger the initrd update. I don't know if this is relevant here 
> so I mention it just in case.
[...]

So this points to:

commit 360fd45301707daa3d95be32d84132481b17db46
Author: Jeff Johnson <jjohnson@qti.qualcomm.com>
Date:   Thu Apr 24 13:03:30 2025 -0700
 
    ath12k: WCN7850 hw2.0: update to WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Here is what lspci reports about the device:


> c2:00.0 Network controller [0280]: Qualcomm Technologies, Inc WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 [FastConnect 7800] [17cb:1107] (rev 01)
>          Subsystem: Lenovo Device [17aa:e0e6]
>          Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
>          Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>          Latency: 0
>          Interrupt: pin ? routed to IRQ 105
>          IOMMU group: 16
>          Region 0: Memory at b0600000 (64-bit, non-prefetchable) [size=2M]
>          Capabilities: <access denied>
>          Kernel driver in use: ath12k_pci
>          Kernel modules: ath12k

Ben.

-- 
Ben Hutchings - Debian developer, member of kernel, installer and LTS
teams

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#88837

FromBen Hutchings <ben@decadent.org.uk>
Date2025-08-15 22:00 +0200
Message-ID<Lk8KJ-7SrH-5@gated-at.bofh.it>
In reply to#88320

[Multipart message — attachments visible in raw view] — view raw

Control: tag -1 moreinfo

On Thu, 10 Jul 2025 13:51:12 +0200 Bastian Venthur <venthur@debian.org>
wrote:
> BTS, does not like my private email address, resending.
> 
> On 10.07.25 13:03, Ben Hutchings wrote:
> > Other firmware files under ath12k/WCN7850/hw2.0 changed in upstream
> > versions 20250509 and 20250613.
> > 
> > Can you please test version 20250509-1 (from snapshot.debian.org) so
we
> > can tell which of the 2 updates broke this?
> 
> 20250509 also does not work. Note, I simply updated the single
> firmware-atheros_20250509-1_all.deb and not firmware-nonfree etc so it
> did not trigger the initrd update. I don't know if this is relevant
here 
> so I mention it just in case.
[...]

These files were updated again in upstream version 20250808, but (as
usual) I don't know exactly what the update is intended to change.  I
have just uploaded the new version to unstable.

Can you test whether this is fixed in 20250808-1?

If not, I will revert these files to the versions that were in 20250410,
until this is properly addressed upstream.

Ben.

-- 
Ben Hutchings
Q.  Which is the greater problem in the world today,
    ignorance or apathy?
A.  I don't know and I couldn't care less.

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#88312 — Processed: Re: Bug#1109015: Wifi not working anymore with new atheros firmware from experimental

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2025-07-10 13:10 +0200
SubjectProcessed: Re: Bug#1109015: Wifi not working anymore with new atheros firmware from experimental
Message-ID<L6Xk5-gAFU-3@gated-at.bofh.it>
In reply to#88291
Processing control commands:

> tag -1 moreinfo upstream
Bug #1109015 [firmware-atheros] Wifi not working anymore with new atheros firmware from experimental
Added tag(s) upstream and moreinfo.

-- 
1109015: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1109015
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#88906 — Bug#1109015: marked as done (Wifi not working anymore with new atheros firmware from experimental)

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2025-08-18 14:20 +0200
SubjectBug#1109015: marked as done (Wifi not working anymore with new atheros firmware from experimental)
Message-ID<Ll70d-8wxa-11@gated-at.bofh.it>
In reply to#88291

[Multipart message — attachments visible in raw view] — view raw

Your message dated Mon, 18 Aug 2025 14:14:14 +0200
with message-id <aKMZFtmp_mh34mx2@eldamar.lan>
and subject line Re: Bug#1109015: Wifi not working anymore with new atheros firmware from experimental
has caused the Debian Bug report #1109015,
regarding Wifi not working anymore with new atheros firmware from experimental
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1109015: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1109015
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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