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Groups > linux.debian.kernel > #88291

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

Cross-posted to 2 groups.

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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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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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