BCM4360 not supported #18721

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1. electric-tofu-magic

   added

   bugSomething isn't workingSomething isn't working

   on Nov 13, 2026
2. PDepaula commented on Nov 13, 2026

   

   PDepaula

   on Nov 13, 2026

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   Same chip on a different model: BCM4360 14e4:43a0 (MacBookAir7,2, subsystem 106b:0117), Omarchy 4.5.0-3, kernel 7.2.15-1-omarchy, broadcom-wl-dkms 6.30.223.271-50.

   Symptom: after reboot there is no wifi device, only ethernet.

   Evidence:

   • lsmod shows both wl and bcma loaded, but /sys/bus/pci/devices/0000:03:00.0/driver points to bcma-pci-bridge, not wl, so wl never attaches and no wlp3s0 exists.
   • journalctl -b -k shows bcma-pci-bridge 0000:03:00.0: bus0: Found chip with id 0x4360 while the hostname is still archlinux, so bcma binds during the initramfs stage. wl loads about 16 s later.
   • A plain blacklist does not stop this. It only blocks alias autoload, and the image used at that stage carries its own copy of modprobe.d.

   Fix that worked:

   1. Append install bcma /bin/false to /etc/modprobe.d/broadcom-wl.conf.
   2. Run sudo limine-mkinitcpio to rebuild the initramfs.
   3. Reboot with no ethernet: wlp3s0 connects, wl is loaded, bcma is not.

   Step 1 alone did not fix it after a reboot. I have not tested whether step 2 alone is enough.

   Possibly related: #10994 (same driver-order problem on a BCM4322, workaround MODULES+=(wl) in /etc/mkinitcpio.conf.d/).