Friday, September 11, 2026

[fedora-arm] Re: Latest brcmfmac breaks RPI5 wifi

Yes, reverting to brcmfmac  7.45.234 makes it start working again.

How to narrow down which of those 6 updates did the damage?

:D

On 11/09/2026 16:23, Peter Robinson wrote:
Hi David,

Anybody interested in the details?
Depends on what you mean by details.

Not sure exactly which of these updates does it:
Well there's only one of those that are brcmfmac wifi firmware ;-)

But also I've tested this on all 3 of my RPi5's and none of them are
seeing a wifi regression with that firmware update.

With a 'dmeg | grep brcmf' I get the following with the new 7.45.286
FW (the old one was 7.45.234) being reported:

[    7.867322] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[    7.869860] usbcore: registered new interface driver brcmfmac
[    8.056278] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
available (err=-2)
[    8.056547] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6
wl0: Oct 28 2024 23:27:00 version 7.45.286 (be70ab3 CY) FWI

:D

# !dnf
dnf distro-sync
Updating and loading repositories:
Repositories loaded.
Package                                                              Arch            Version                                                              Repository                                   Size
Upgrading:
brcmfmac-firmware                                                   noarch          0:20260910-1.fc45                                                    updates-testing                           9.5 MiB
  replacing brcmfmac-firmware                                       noarch          0:20260810-1.fc45                                                    fedora                                    9.5 MiB
iwlwifi-mld-firmware                                                noarch          0:20260910-1.fc45                                                    updates-testing                          23.4 MiB
  replacing iwlwifi-mld-firmware                                    noarch          0:20260810-1.fc45                                                    fedora                                   20.2 MiB
iwlwifi-mvm-firmware                                                noarch          0:20260910-1.fc45                                                    updates-testing                          62.7 MiB
  replacing iwlwifi-mvm-firmware                                    noarch          0:20260810-1.fc45                                                    fedora                                   62.7 MiB
linux-firmware                                                      noarch          0:20260910-1.fc45                                                    updates-testing                          48.7 MiB
  replacing linux-firmware                                          noarch          0:20260810-1.fc45                                                    fedora                                   50.0 MiB
linux-firmware-whence                                               noarch          0:20260910-1.fc45                                                    updates-testing                         462.2 KiB
  replacing linux-firmware-whence                                   noarch          0:20260810-1.fc45                                                    fedora                                  449.3 KiB
realtek-firmware                                                    noarch          0:20260910-1.fc45                                                    updates-testing                           6.9 MiB
  replacing realtek-firmware                                        noarch          0:20260810-1.fc45                                                    fedora                                    6.9 MiB




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