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

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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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Thread

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

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