Hi! I am in a similar situation, but with a T14 Gen 5 AMD, with the same wifi card: ` verpejas@ThinkPad-T14-G5a:~$ lspci | grep Qualcomm 02:00.0 Network controller: Qualcomm Technologies, Inc WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 [FastConnect 7800] (rev 01) `
I have tried putting the board-2.bin from @juergh to /lib/firmware/ath12k/WCN7850/hw2.0/, but it had no affect (also the dmesg was identical before using that board-2.bin file too): ``` verpejas@ThinkPad-T14-G5a:~$ cat dmesgoldfw | grep ath12k [ 10.792774] ath12k_pci 0000:02:00.0: BAR 0 [mem 0x90600000-0x907fffff 64bit]: assigned [ 10.792796] ath12k_pci 0000:02:00.0: enabling device (0000 -> 0002) [ 10.793925] ath12k_pci 0000:02:00.0: MSI vectors: 16 [ 10.793932] ath12k_pci 0000:02:00.0: Hardware name: wcn7850 hw2.0 [ 10.794700] ath12k_pci 0000:02:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2) [ 10.794716] ath12k_pci 0000:02:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2) [ 10.794727] ath12k_pci 0000:02:00.0: firmware: failed to load ath12k/WCN7850/hw2.0/firmware-2.bin (-2) [ 11.364012] ath12k_pci 0000:02:00.0: chip_id 0x2 chip_family 0x4 board_id 0xff soc_id 0x40170200 [ 11.364020] ath12k_pci 0000:02:00.0: fw_version 0x110cffff fw_build_timestamp 2025-06-25 09:26 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3 [ 11.366679] ath12k_pci 0000:02:00.0: invalid ACPI DSM TAS config size: 1 [ 11.366682] ath12k_pci 0000:02:00.0: failed to get ACPI TAS config table: -22 [ 11.570216] ath12k_pci 0000:02:00.0 wlp2s0: renamed from wlan0 ``` Then i also copied the board-2.bin to firmware-2.bin, just for a test. It seems to silence the firmware-2.bin errors, but I also do not see any change in the firmware versions. (I run debian forky testing right now, but same error on my hardware was present on other distros as well including ubuntu): ``` verpejas@ThinkPad-T14-G5a:~$ sudo dmesg | grep ath12k Place your finger on the fingerprint reader [ 10.687444] ath12k_pci 0000:02:00.0: BAR 0 [mem 0x90600000-0x907fffff 64bit]: assigned [ 10.687462] ath12k_pci 0000:02:00.0: enabling device (0000 -> 0002) [ 10.688291] ath12k_pci 0000:02:00.0: MSI vectors: 16 [ 10.688296] ath12k_pci 0000:02:00.0: Hardware name: wcn7850 hw2.0 [ 10.694488] ath12k_pci 0000:02:00.0: Invalid firmware magic [ 11.279693] ath12k_pci 0000:02:00.0: chip_id 0x2 chip_family 0x4 board_id 0xff soc_id 0x40170200 [ 11.279697] ath12k_pci 0000:02:00.0: fw_version 0x110cffff fw_build_timestamp 2025-06-25 09:26 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3 [ 11.282366] ath12k_pci 0000:02:00.0: invalid ACPI DSM TAS config size: 1 [ 11.282369] ath12k_pci 0000:02:00.0: failed to get ACPI TAS config table: -22 [ 11.483651] ath12k_pci 0000:02:00.0 wlp2s0: renamed from wlan0 verpejas@ThinkPad-T14-G5a:~$ ls -al /lib/firmware/ath12k/WCN7850/hw2.0/ total 12876 drwxr-xr-x 6 root root 4096 Feb 28 16:46 . drwxr-xr-x 4 root root 4096 Dec 29 00:02 .. drwxr-xr-x 3 root root 4096 Dec 29 00:02 1.0 drwxr-xr-x 3 root root 4096 Dec 29 00:02 1.0.c5 drwxr-xr-x 5 root root 4096 Dec 29 00:02 1.1 -rw-r--r-- 1 root root 6082624 Feb 4 17:43 amss.bin -rw-r--r-- 1 root root 2253964 Feb 28 16:43 board-2.bin -rw-r--r-- 1 root root 2253732 Feb 28 16:42 board-2.bin.backup -rw-r--r-- 1 root root 2253964 Feb 28 16:46 firmware-2.bin -rw-r--r-- 1 root root 299660 Feb 4 17:43 m3.bin drwxr-xr-x 2 root root 4096 Feb 28 13:04 ncm865 ``` This issue affects me a lot, as my device for example could not connect to some 5GHz or 2.4GHz networks in my location, and reconfiguration of the AP was needed, including separating to distinct 2,4GHz and 5GHz SSIDs for my machine to even attempt connecting to the 2,4GHz network when the range is bad. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2130490 Title: ath12k : DFS-UNSET disables some channels of 5GHz and 6GHz by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2130490/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
