Broadcom wireless network device no clm_blob available

I have a Dell XPS 13 2016 (9350) that is running Manjaro since I first handed it back in earlier 2016. After the last system update, the Wifi is not working anymore.

Gnome lists the wireless option in the top right menu. But it doesn’t list any network available although there are plenty here.

I read all the troubleshooting guides again but I was unable to fix it. The clue that I have is

$ sudo dmesg | grep brcmfmac
[    7.665094] usbcore: registered new interface driver brcmfmac
[    7.774192] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[    7.775352] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.bin failed with error -2
[    7.777407] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.txt failed with error -2
[    7.777438] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.txt failed with error -2
[    8.304722] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[    8.304761] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[    8.305319] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4350/8 wl0: Oct 22 2015 06:16:26 version 7.35.180.119 (r594535) FWID 01-e791c176
[    8.674188] brcmfmac 0000:3a:00.0 wlp58s0: renamed from wlan0

The most relevant information is brcmf_c_process_clm_blob: no clm_blob available (err=-2). What am I missing here? How can I solve my wireless network?

$ sudo lsmod 
Module                  Size  Used by
btrfs                1720320  0
blake2b_generic        20480  0
xor                    24576  1 btrfs
raid6_pq              122880  1 btrfs
ufs                    94208  0
hfsplus               159744  0
hfs                    94208  0
cdrom                  81920  2 hfsplus,hfs
minix                  53248  0
vfat                   24576  0
msdos                  20480  0
fat                    90112  2 msdos,vfat
jfs                   233472  0
xfs                  2142208  0
libcrc32c              16384  2 btrfs,xfs
rndis_host             24576  0
cdc_ether              24576  1 rndis_host
usbnet                 53248  2 rndis_host,cdc_ether
mii                    16384  1 usbnet
rfcomm                 90112  16
cmac                   16384  3
algif_hash             16384  1
algif_skcipher         16384  1
af_alg                 36864  6 algif_hash,algif_skcipher
bnep                   32768  2
btusb                  65536  0
btrtl                  28672  1 btusb
btbcm                  24576  1 btusb
btintel                45056  1 btusb
bluetooth             770048  43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
uvcvideo              151552  0
ecdh_generic           16384  2 bluetooth
videobuf2_vmalloc      20480  1 uvcvideo
videobuf2_memops       20480  1 videobuf2_vmalloc
videobuf2_v4l2         40960  1 uvcvideo
videobuf2_common       86016  4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
videodev              307200  3 videobuf2_v4l2,uvcvideo,videobuf2_common
mc                     65536  4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
snd_hda_codec_hdmi     86016  1
snd_soc_skl           221184  0
snd_soc_hdac_hda       28672  1 snd_soc_skl
snd_hda_ext_core       36864  2 snd_soc_hdac_hda,snd_soc_skl
snd_ctl_led            24576  0
snd_soc_sst_ipc        20480  1 snd_soc_skl
snd_soc_sst_dsp        40960  1 snd_soc_skl
snd_soc_acpi_intel_match    61440  1 snd_soc_skl
snd_soc_acpi           16384  2 snd_soc_acpi_intel_match,snd_soc_skl
snd_soc_core          393216  2 snd_soc_hdac_hda,snd_soc_skl
snd_hda_codec_realtek   159744  1
snd_compress           28672  1 snd_soc_core
snd_hda_codec_generic    98304  1 snd_hda_codec_realtek
ac97_bus               16384  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
snd_hda_intel          61440  3
snd_intel_dspcfg       32768  2 snd_hda_intel,snd_soc_skl
joydev                 28672  0
iTCO_wdt               16384  0
snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg
intel_pmc_bxt          16384  1 iTCO_wdt
snd_hda_codec         184320  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
mousedev               24576  0
iTCO_vendor_support    16384  1 iTCO_wdt
dell_laptop            32768  0
snd_hda_core          118784  8 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_soc_hdac_hda,snd_soc_skl
intel_tcc_cooling      16384  0
x86_pkg_temp_thermal    20480  0
intel_powerclamp       20480  0
coretemp               20480  0
dell_wmi               28672  1 dell_laptop
kvm_intel             372736  0
mei_hdcp               24576  0
snd_hwdep              20480  1 snd_hda_codec
ledtrig_audio          16384  4 snd_ctl_led,snd_hda_codec_generic,dell_wmi,dell_laptop
snd_pcm               163840  8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_compress,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
kvm                  1089536  1 kvm_intel
dell_smbios            32768  2 dell_wmi,dell_laptop
irqbypass              16384  1 kvm
snd_timer              45056  1 snd_pcm
intel_wmi_thunderbolt    20480  0
dell_wmi_descriptor    20480  2 dell_wmi,dell_smbios
wmi_bmof               16384  0
intel_rapl_msr         20480  0
dcdbas                 20480  1 dell_smbios
rapl                   16384  0
intel_cstate           20480  0
dell_smm_hwmon         28672  0
snd                   126976  17 snd_ctl_led,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm
i2c_i801               45056  0
intel_uncore          208896  0
i915                 3293184  32
psmouse               212992  0
i2c_smbus              20480  1 i2c_i801
soundcore              16384  2 snd_ctl_led,snd
intel_lpss_pci         28672  0
mei_me                 53248  1
intel_lpss             16384  1 intel_lpss_pci
intel_xhci_usb_role_switch    16384  0
mei                   167936  3 mei_hdcp,mei_me
intel_hid              28672  0
processor_thermal_device_pci_legacy    16384  0
idma64                 20480  0
intel_pch_thermal      20480  0
tpm_tis                16384  0
processor_thermal_device    20480  1 processor_thermal_device_pci_legacy
sparse_keymap          16384  2 intel_hid,dell_wmi
tpm_tis_core           32768  1 tpm_tis
processor_thermal_rfim    16384  1 processor_thermal_device
roles                  16384  1 intel_xhci_usb_role_switch
wmi                    40960  5 intel_wmi_thunderbolt,dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
processor_thermal_mbox    16384  2 processor_thermal_rfim,processor_thermal_device
i2c_hid_acpi           16384  0
i2c_hid                40960  1 i2c_hid_acpi
int3400_thermal        20480  0
processor_thermal_rapl    20480  1 processor_thermal_device
ttm                    86016  1 i915
intel_rapl_common      32768  2 intel_rapl_msr,processor_thermal_rapl
intel_gtt              28672  1 i915
acpi_thermal_rel       16384  1 int3400_thermal
mac_hid                16384  0
intel_soc_dts_iosf     20480  1 processor_thermal_device_pci_legacy
acpi_pad               24576  0
int3403_thermal        20480  0
video                  57344  3 dell_wmi,dell_laptop,i915
brcmfmac              499712  0
int340x_thermal_zone    20480  2 int3403_thermal,processor_thermal_device
brcmutil               24576  1 brcmfmac
cfg80211             1077248  1 brcmfmac
rfkill                 32768  8 bluetooth,dell_laptop,cfg80211
uinput                 20480  0
vboxnetflt             32768  0
vboxnetadp             28672  0
vboxdrv               540672  2 vboxnetadp,vboxnetflt
ipmi_devintf           20480  0
ipmi_msghandler        81920  1 ipmi_devintf
sg                     45056  0
crypto_user            20480  0
fuse                  172032  5
ip_tables              32768  0
x_tables               61440  1 ip_tables
ext4                  999424  3
crc32c_generic         16384  0
crc16                  16384  2 bluetooth,ext4
mbcache                16384  1 ext4
jbd2                  192512  1 ext4
hid_multitouch         32768  0
usbhid                 73728  0
dm_crypt               61440  1
cbc                    16384  0
encrypted_keys         28672  1 dm_crypt
dm_mod                188416  15 dm_crypt
trusted                49152  2 encrypted_keys,dm_crypt
asn1_encoder           16384  1 trusted
tee                    40960  1 trusted
tpm                    98304  3 tpm_tis,trusted,tpm_tis_core
rng_core               16384  1 tpm
rtsx_pci_sdmmc         32768  0
crct10dif_pclmul       16384  1
serio_raw              20480  0
crc32_pclmul           16384  0
mmc_core              225280  2 rtsx_pci_sdmmc,brcmfmac
atkbd                  36864  0
crc32c_intel           24576  4
libps2                 20480  2 atkbd,psmouse
ghash_clmulni_intel    16384  0
aesni_intel           380928  6
crypto_simd            16384  1 aesni_intel
cryptd                 28672  4 crypto_simd,ghash_clmulni_intel
i8042                  45056  1 dell_laptop
xhci_pci               20480  0
rtsx_pci              110592  1 rtsx_pci_sdmmc
xhci_pci_renesas       24576  1 xhci_pci
serio                  28672  6 serio_raw,atkbd,psmouse,i8042

Hi @rgaiacs,

It would seem that for some unknown reason your Wifi adapter’s driver isn’t loading. I don’t know why. I suspect it’s because of a change in the firmware packaging, or similar. But I’m no expert.

To have more info, please provide the output of:

inxi --admin --verbosity=7 --filter --no-host --width
System:
  Kernel: 5.16.11-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.2.0
    parameters: BOOT_IMAGE=/vmlinuz-5.16-x86_64
    root=/dev/mapper/ManjaroVG-ManjaroRoot rw
    cryptdevice=/dev/disk/by-uuid/875464a2-17ff-4e77-a22a-5c4d2d72dc4f:cryptManjaro
    resume=UUID=ed987ad4-ef16-4231-9061-5655d04f7e83 quiet splash
  Desktop: GNOME 41.4 tk: GTK 3.24.31 wm: gnome-shell dm: GDM 41.3
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Laptop System: Dell product: XPS 13 9350 v: N/A
    serial: <superuser required> Chassis: type: 9 serial: <superuser required>
  Mobo: Dell model: 09JHRY v: A00 serial: <superuser required>
    UEFI-[Legacy]: Dell v: 1.2.3 date: 01/08/2016
Battery:
  ID-1: BAT0 charge: 21.9 Wh (100.0%) condition: 21.9/56.0 Wh (39.1%)
    volts: 8.4 min: 7.6 model: LGC-LGC7.3 DELL 5K9CP62 type: Li-ion
    serial: <filter> status: Full
Memory:
  RAM: total: 15.19 GiB used: 4.01 GiB (26.4%)
  RAM Report:
    permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: model: Intel Core i7-6560U bits: 64 type: MT MCP arch: Skylake
    family: 6 model-id: 0x4E (78) stepping: 3 microcode: 0xEC
  Topology: cpus: 1x cores: 2 tpc: 2 threads: 4 smt: enabled cache:
    L1: 128 KiB desc: d-2x32 KiB; i-2x32 KiB L2: 512 KiB desc: 2x256 KiB
    L3: 4 MiB desc: 1x4 MiB
  Speed (MHz): avg: 600 min/max: 400/3200 scaling: driver: intel_pstate
    governor: powersave cores: 1: 600 2: 600 3: 600 4: 600 bogomips: 17605
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
    arch_capabilities arch_perfmon art avx avx2 bmi1 bmi2 bts clflush clflushopt
    cmov constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts
    epb ept ept_ad erms est f16c flexpriority flush_l1d fma fpu fsgsbase fxsr
    ht hwp hwp_act_window hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid
    invpcid_single lahf_lm lm mca mce md_clear mmx monitor movbe mpx msr mtrr
    nonstop_tsc nopl nx pae pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pln
    pni popcnt pse pse36 pti pts rdrand rdseed rdtscp rep_good sdbg sep smap
    smep ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow
    tsc tsc_adjust tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave
    xsavec xsaveopt xsaves xtopology xtpr
  Vulnerabilities:
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf
    mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable
  Type: meltdown mitigation: PTI
  Type: spec_store_bypass
    mitigation: Speculative Store Bypass disabled via prctl
  Type: spectre_v1
    mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
    IBRS_FW, STIBP: conditional, RSB filling
  Type: srbds mitigation: Microcode
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel Iris Graphics 540 vendor: Dell driver: i915 v: kernel ports:
    active: eDP-1 empty: DP-1, DP-2, HDMI-A-1, HDMI-A-2 bus-ID: 00:02.0
    chip-ID: 8086:1926 class-ID: 0300
  Device-2: Microdia Integrated Webcam HD type: USB driver: uvcvideo
    bus-ID: 1-5:4 chip-ID: 0c45:670c class-ID: 0e02
  Display: x11 server: X.Org v: 1.21.1.3 compositor: gnome-shell driver: X:
    loaded: intel gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3200x1800 s-dpi: 96 s-size: 846x476mm (33.3x18.7")
    s-diag: 971mm (38.2")
  Monitor-1: eDP1 mapped: eDP-1 model: Sharp built: 2015 res: 3200x1800
    hz: 60 dpi: 280 gamma: 1.2 size: 290x170mm (11.4x6.7") diag: 337mm (13.3")
    ratio: 16:9 modes: 3200x1800
  Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver: snd_hda_intel
    v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3 chip-ID: 8086:9d70
    class-ID: 0403
  Sound Server-1: ALSA v: k5.16.11-2-MANJARO running: yes
  Sound Server-2: JACK v: 0.125.0 running: no
  Sound Server-3: PulseAudio v: 15.0 running: yes
  Sound Server-4: PipeWire v: 0.3.47 running: yes
Network:
  Device-1: Broadcom BCM4350 802.11ac Wireless Network Adapter vendor: Dell
    driver: brcmfmac v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1
    bus-ID: 3a:00.0 chip-ID: 14e4:43a3 class-ID: 0280
  IF: wlp58s0 state: down mac: <filter>
  IF-ID-1: enp0s20f0u2 state: unknown speed: -1 duplex: half mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Device-1: Broadcom BCM2045A0 type: USB driver: btusb v: 0.8 bus-ID: 1-3:2
    chip-ID: 0a5c:6412 class-ID: fe01 serial: <filter>
  Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
Logical:
  Message: Unable to run lvs. Root privileges required.
  Device-1: cryptManjaro maj-min: 254:0 type: LUKS dm: dm-0 size: 476.69 GiB
  Components:
  p-1: nvme0n1p2 maj-min: 259:2 size: 476.69 GiB
RAID:
  Hardware-1: Intel 82801 Mobile SATA Controller [RAID mode] driver: ahci
    v: 3.0 port: f060 bus-ID: 00:17.0 chip-ID: 8086:282a rev: N/A class-ID: 0104
Drives:
  Local Storage: total: 476.94 GiB used: 366.83 GiB (76.9%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Toshiba
    model: THNSN5512GPU7 NVMe 512GB size: 476.94 GiB block-size: physical: 512 B
    logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
    rev: 57DA4103 temp: 41.9 C scheme: MBR
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 29.3 GiB size: 28.71 GiB (98.00%) used: 24.52 GiB (85.4%)
    fs: ext4 dev: /dev/dm-1 maj-min: 254:1 mapped: ManjaroVG-ManjaroRoot
    label: N/A uuid: N/A
  ID-2: /boot raw-size: 255 MiB size: 247 MiB (96.84%)
    used: 174.1 MiB (70.5%) fs: ext2 dev: /dev/nvme0n1p1 maj-min: 259:1
    label: ManjaroBoot uuid: 8432dd40-14cf-4636-a4d3-ebf7c90314b0
  ID-3: /home raw-size: 439.76 GiB size: 432.73 GiB (98.40%)
    used: 342.13 GiB (79.1%) fs: ext4 dev: /dev/dm-3 maj-min: 254:3
    mapped: ManjaroVG-ManjaroHome label: N/A uuid: N/A
Swap:
  Kernel: swappiness: 1 (default 60) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 7.62 GiB used: 0 KiB (0.0%)
    priority: -2 dev: /dev/dm-2 maj-min: 254:2 mapped: ManjaroVG-ManjaroSwap
    label: ManjaroSwap uuid: ed987ad4-ef16-4231-9061-5655d04f7e83
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 1-2:37 info: Qualcomm BENGAL-QRD _SN:AF6D3357 type: CDC-Data
    driver: rndis_host interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
    chip-ID: 05c6:f00e class-ID: 0a00 serial: <filter>
  Device-2: 1-3:2 info: Broadcom BCM2045A0 type: Bluetooth driver: btusb
    interfaces: 4 rev: 2.0 speed: 12 Mb/s chip-ID: 0a5c:6412 class-ID: fe01
    serial: <filter>
  Device-3: 1-4:3 info: Elan Micro Touchscreen type: HID
    driver: hid-multitouch,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s
    power: 100mA chip-ID: 04f3:20d0 class-ID: 0300
  Device-4: 1-5:4 info: Microdia Integrated Webcam HD type: Video
    driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
    chip-ID: 0c45:670c class-ID: 0e02
  Hub-2: 2-0:1 info: Super-speed hub ports: 6 rev: 3.0 speed: 5 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 59.0 C pch: 55.0 C mobo: 43.0 C sodimm: SODIMM C
  Fan Speeds (RPM): cpu: 0
Info:
  Processes: 274 Uptime: 1h 34m wakeups: 2 Init: systemd v: 250
  tool: systemctl Compilers: gcc: 11.2.0 clang: 13.0.1 Packages: 1723 apt: 0
  pacman: 1707 lib: 464 flatpak: 16 Shell: Zsh v: 5.8.1
  running-in: gnome-terminal inxi: 3.3.13

OK, I see it has a driver already, so I don’t know if this’ll work, but it’s probably worth a shot. I see there is firmware for the adapter in the AUR:

$ pamac search firmware | grep 4350
bcm4350-firmware                        0.3-1                         AUR
Broadcom BCM4350 card
[...]

So installing that might help:

pamac build bcm4350-firmware

Edit:

Remember to reboot afterwards.

Thanks for all the help!

I installed bcm4350-firmware from AUR

$ pacman -Q | grep bcm
bcm4350-firmware 0.3-1

but no change.

$ sudo dmesg | grep brcmfmac             
[    7.652379] usbcore: registered new interface driver brcmfmac
[    7.757757] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[    7.758608] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.bin failed with error -2
[    7.760941] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.txt failed with error -2
[    7.760968] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.txt failed with error -2
[    8.186402] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[    8.186449] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[    8.186708] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4350/8 wl0: Oct 22 2015 06:16:26 version 7.35.180.119 (r594535) FWID 01-e791c176
[    9.166410] brcmfmac 0000:3a:00.0 wlp58s0: renamed from wlan0

According to this page on the Archwiki:

For the non-developer edition, the built-in Broadcom BCM4350 is now supported in the current linux kernel (as of version 4.4.1-1). The wireless module brcmfmac also needs the firmware brcmfmac4350-pcie.bin from the related linux-firmware package.

So install linux-firmware and test again:

pamac install linux-firmware

Followed by rebooting.


You should be able to safely uninstall the previous firmware installation:

pamac remove bcm4350-firmware

Still not working after re-install linux-firmware and reboot.

I booted from the live installation image and I noticed the same log regarding the wireless module.

$ sudo dmesg | grep brc
[   18.098499] usbcore: registered new interface driver brcmfmac
[   18.204837] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[   18.205767] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.bin failed with error -2
[   18.207889] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.Dell Inc.-XPS 13 9350.txt failed with error -2
[   18.207911] brcmfmac 0000:3a:00.0: Direct firmware load for brcm/brcmfmac4350-pcie.txt failed with error -2
[   18.639119] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4350-pcie for chip BCM4350/8
[   18.639165] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[   18.639965] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4350/8 wl0: Oct 22 2015 06:16:26 version 7.35.180.119 (r594535) FWID 01-e791c176
[   19.395068] brcmfmac 0000:3a:00.0 wlp58s0: renamed from wlan0
[   20.547655] Bluetooth: hci0: BCM: 'brcm/BCM4350C5-0a5c-6412.hcd'
[   20.547656] Bluetooth: hci0: BCM: 'brcm/BCM-0a5c-6412.hcd'

I think that I can discard the hypothesis that the no clm_blob available is the cause of my problem.

I have the device listed with iwconfig:

$ iwconfig             
lo        no wireless extensions.

wlp58s0   IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=31 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          
enp0s20f0u1  no wireless extensions.

What high part of the wireless stack should I investigate?

I’m officially out of ideas. Apologies.

Edit:

Please provide the output for

rfkill
$ sudo rfkill
ID TYPE      DEVICE      SOFT      HARD
 0 wlan      phy0   unblocked unblocked
 1 bluetooth hci0   unblocked unblocked

TL;DR sudo pacman -S wpa_supplicant && sudo systemctl restart NetworkManager

@Mirdarthos Thanks for all the help. It was extremely valuable to me and contributed to remove some hypothesis and lead to the correct path to resolve my issue.

$ sudo rfkill
ID TYPE      DEVICE      SOFT      HARD
 0 wlan      phy0   unblocked unblocked
 1 bluetooth hci0   unblocked unblocked

tells that the wireless device is not blocked (by hardware or software).

$ sudo nmcli device
DEVICE       TYPE      STATE        CONNECTION         
enp0s20f0u2  ethernet  connected    Wired connection 1 
wlp58s0      wifi      unavailable  --                 
lo           loopback  unmanaged    -- 

Why the device is unavailable? I saw people saying to inspect NetworkManager.

$ sudo systemctl status NetworkManager
● NetworkManager.service - Network Manager
     Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
    Drop-In: /usr/lib/systemd/system/NetworkManager.service.d
             └─NetworkManager-ovs.conf
     Active: active (running) since Sat 2022-03-05 11:05:23 HKT; 56s ago
       Docs: man:NetworkManager(8)
   Main PID: 5123 (NetworkManager)
      Tasks: 3 (limit: 18630)
     Memory: 8.8M
        CPU: 507ms
     CGroup: /system.slice/NetworkManager.service
             └─5123 /usr/bin/NetworkManager --no-daemon

Mar 05 11:05:53 raniere NetworkManager[5123]: <error> [1646449553.2546] device (wlp58s0): Couldn't initialize supplicant interface: Failed to D-Bus activate wpa_supplicant service
Mar 05 11:06:03 raniere NetworkManager[5123]: <warn>  [1646449563.2493] device (wlp58s0): re-acquiring supplicant interface (#3).
Mar 05 11:06:06 raniere NetworkManager[5123]: <error> [1646449566.2513] device (wlp58s0): Couldn't initialize supplicant interface: Failed to D-Bus activate wpa_supplicant service
Mar 05 11:06:16 raniere NetworkManager[5123]: <warn>  [1646449576.2515] device (wlp58s0): re-acquiring supplicant interface (#4).
Mar 05 11:06:18 raniere NetworkManager[5123]: <info>  [1646449578.4215] device (enp0s20f0u2): state change: activated -> unmanaged (reason 'removed', sys-iface-state: 'removed')
Mar 05 11:06:18 raniere NetworkManager[5123]: <info>  [1646449578.4438] dhcp4 (enp0s20f0u2): canceled DHCP transaction
Mar 05 11:06:18 raniere NetworkManager[5123]: <info>  [1646449578.4439] dhcp4 (enp0s20f0u2): state changed bound -> terminated
Mar 05 11:06:18 raniere NetworkManager[5123]: <info>  [1646449578.4809] manager: NetworkManager state is now DISCONNECTED
Mar 05 11:06:18 raniere NetworkManager[5123]: <info>  [1646449578.8872] manager: (usb0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/4)
Mar 05 11:06:19 raniere NetworkManager[5123]: <error> [1646449579.2525] device (wlp58s0): Couldn't initialize supplicant interface: Failed to D-Bus activate wpa_supplicant service

This log was key. wpa_supplicant might have been misconfigured by me during last system update. Re-install wpa_supplicant and restart NetworkManager resolved the issue.

$ sudo pacman -S wpa_supplicant
$ sudo systemctl restart NetworkManager
$ sudo systemctl status NetworkManager
● NetworkManager.service - Network Manager
     Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
    Drop-In: /usr/lib/systemd/system/NetworkManager.service.d
             └─NetworkManager-ovs.conf
     Active: active (running) since Sat 2022-03-05 11:08:10 HKT; 5s ago
       Docs: man:NetworkManager(8)
   Main PID: 5492 (NetworkManager)
      Tasks: 4 (limit: 18630)
     Memory: 8.9M
        CPU: 486ms
     CGroup: /system.slice/NetworkManager.service
             └─5492 /usr/bin/NetworkManager --no-daemon

Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1627] Config: added 'ssid' value 'Foo Bar'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1628] Config: added 'scan_ssid' value '1'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1628] Config: added 'bgscan' value 'simple:30:-70:86400'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1630] Config: added 'key_mgmt' value 'WPA-PSK WPA-PSK-SHA256 FT-PSK'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1630] Config: added 'auth_alg' value 'OPEN'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1631] Config: added 'psk' value '<hidden>'
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1831] device (wlp58s0): supplicant interface state: disconnected -> inactive
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.1832] device (p2p-dev-wlp58s0): supplicant management interface state: disconnected -> inactive
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.2437] device (wlp58s0): supplicant interface state: inactive -> associating
Mar 05 11:08:15 raniere NetworkManager[5492]: <info>  [1646449695.2438] device (p2p-dev-wlp58s0): supplicant management interface state: inactive -> associating
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