Hi all, I am trying to solve a problem on a Dell Latitude 7420, running Ubuntu 22.04.2 LTS. All
of a sudden the broadband menu item disappeared from the menu. I
checked and the Snapdragon modem is present in lsusb, however it isn't
there when I run nmcli, and mmcli gives a no-modem-found error.
I tried booting from a live ubuntu CD and the modem is correctly seen
by network manager, so I suspect this is due to some misconfiguration
or some update that broke things.
Does anybody have any idea of the next steps to debug this?
Thanks!
Here are the outputs of nmcli, lsmod, and mmcli
** nmcli
Code:
enx747827e6f7de: connected to Wired connection 1
"Realtek RTL8153"
ethernet (r8152), 74:78:27:E6:F7:DE, hw, mtu 1500
ip4 default
inet4 131.254.11.148/17
route4 131.254.0.0/17 metric 100
route4 169.254.0.0/16 metric 1000
route4 default via 131.254.1.1 metric 100
inet6 fe80::1ca4:a34e:844c:7470/64
route6 fe80::/64 metric 1024
wlp0s20f3: connected to iwifi-guest
"Intel 6 AX201"
wifi (iwlwifi), 7C:50:79:8B:8A:BC, hw, mtu 1500
inet4 131.254.253.180/24
route4 131.254.253.0/24 metric 600
route4 default via 131.254.253.254 metric 20600
inet6 fe80::2601:91c5:4b9e:c8f3/64
route6 fe80::/64 metric 1024
docker0: connected (externally) to docker0
"docker0"
bridge, 02:42:21:1B:DF:C6, sw, mtu 1500
inet4 172.17.0.1/16
route4 172.17.0.0/16 metric 0
p2p-dev-wlp0s20f3: disconnected
"p2p-dev-wlp0s20f3"
wifi-p2p, hw
lo: unmanaged
"lo"
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
DNS configuration:
servers: 131.254.130.100
domains: irisa.fr rennes.inria.fr inria.fr ad.inria.fr insa-rennes.fr
interface: enx747827e6f7de
servers: 131.254.253.254
domains: rennes.inria.fr
interface: wlp0s20f3
Use "nmcli device show" to get complete information about known devices and
"nmcli connection show" to get an overview on active connection profiles.
Consult nmcli(1) and nmcli-examples(7) manual pages for complete usage details.
** lsmod
Code:
Module Size Used by
tls 102400 0
snd_usb_audio 315392 3
snd_usbmidi_lib 36864 1 snd_usb_audio
r8153_ecm 16384 0
r8152 110592 1 r8153_ecm
rfcomm 81920 4
ppp_deflate 16384 0
bsd_comp 16384 0
ppp_async 20480 0
xt_conntrack 16384 1
nft_chain_nat 16384 3
xt_MASQUERADE 20480 1
nf_nat 49152 2 nft_chain_nat,xt_MASQUERADE
nf_conntrack_netlink 49152 0
nf_conntrack 151552 4 xt_conntrack,nf_nat,nf_conntrack_netlink,xt_MASQUERADE
nf_defrag_ipv6 24576 1 nf_conntrack
nf_defrag_ipv4 16384 1 nf_conntrack
xfrm_user 36864 1
xfrm_algo 16384 1 xfrm_user
nft_counter 16384 15
xt_addrtype 16384 2
nft_compat 20480 4
nf_tables 212992 43 nft_compat,nft_counter,nft_chain_nat
libcrc32c 16384 3 nf_conntrack,nf_nat,nf_tables
nfnetlink 20480 4 nft_compat,nf_conntrack_netlink,nf_tables
br_netfilter 28672 0
bridge 266240 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
cmac 16384 3
algif_hash 16384 1
algif_skcipher 16384 1
af_alg 28672 6 algif_hash,algif_skcipher
bnep 24576 2
overlay 126976 0
snd_hda_codec_hdmi 61440 1
binfmt_misc 24576 1
dell_rbtn 20480 0
snd_sof_pci_intel_tgl 16384 0
snd_sof_intel_hda_common 98304 1 snd_sof_pci_intel_tgl
soundwire_intel 40960 1 snd_sof_intel_hda_common
soundwire_generic_allocation 16384 1 soundwire_intel
soundwire_cadence 32768 1 soundwire_intel
snd_sof_intel_hda 20480 1 snd_sof_intel_hda_common
snd_sof_pci 20480 2 snd_sof_intel_hda_common,snd_sof_pci_intel_tgl
snd_sof_xtensa_dsp 16384 1 snd_sof_intel_hda_common
snd_sof 131072 2 snd_sof_pci,snd_sof_intel_hda_common
snd_soc_hdac_hda 24576 1 snd_sof_intel_hda_common
snd_hda_ext_core 32768 3 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_soc_acpi_intel_match 57344 2 snd_sof_intel_hda_common,snd_sof_pci_intel_tgl
snd_soc_acpi 16384 2 snd_soc_acpi_intel_match,snd_sof_intel_hda_common
soundwire_bus 81920 3 soundwire_intel,soundwire_generic_allocation,soundwire_cadence
snd_soc_core 290816 4 soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda
snd_ctl_led 24576 0
snd_hda_codec_realtek 147456 1
snd_compress 28672 1 snd_soc_core
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
mei_hdcp 24576 0
ac97_bus 16384 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
dell_laptop 24576 0
intel_tcc_cooling 16384 0
snd_hda_intel 53248 3
intel_rapl_msr 20480 0
snd_intel_dspcfg 28672 2 snd_hda_intel,snd_sof_intel_hda_common
x86_pkg_temp_thermal 20480 0
snd_intel_sdw_acpi 20480 2 snd_sof_intel_hda_common,snd_intel_dspcfg
intel_powerclamp 20480 0
snd_hda_codec 147456 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
snd_hda_core 94208 9 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
coretemp 20480 0
nls_iso8859_1 16384 1
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
kvm_intel 311296 0
snd_pcm 122880 12 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_compress,snd_soc_core,snd_hda_core,snd_pcm_dmaengine
iwlmvm 421888 0
kvm 880640 1 kvm_intel
snd_seq_midi 20480 0
mac80211 1028096 1 iwlmvm
snd_seq_midi_event 16384 1 snd_seq_midi
joydev 28672 0
cdc_mbim 20480 0
snd_rawmidi 40960 2 snd_seq_midi,snd_usbmidi_lib
cdc_ncm 40960 1 cdc_mbim
intel_cstate 20480 0
libarc4 16384 1 mac80211
snd_seq 73728 2 snd_seq_midi,snd_seq_midi_event
btusb 65536 0
cdc_ether 20480 2 r8153_ecm,cdc_ncm
input_leds 16384 0
uvcvideo 106496 0
qmi_wwan 36864 0
cdc_wdm 28672 2 cdc_mbim,qmi_wwan
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
btrtl 24576 1 btusb
videobuf2_v4l2 32768 1 uvcvideo
iwlwifi 389120 1 iwlmvm
btbcm 24576 1 btusb
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
dell_wmi 20480 1 dell_laptop
serio_raw 20480 0
snd_timer 40960 2 snd_seq,snd_pcm
option 61440 0
usbnet 49152 5 cdc_mbim,r8153_ecm,cdc_ncm,qmi_wwan,cdc_ether
videobuf2_common 61440 4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
btintel 36864 1 btusb
ledtrig_audio 16384 5 snd_ctl_led,snd_hda_codec_generic,dell_wmi,snd_sof,dell_laptop
usb_wwan 24576 1 option
mii 20480 2 usbnet,r8152
bluetooth 651264 33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
dell_smbios 28672 2 dell_wmi,dell_laptop
hid_sensor_als 20480 1
hid_sensor_custom_intel_hinge 16384 0
usbserial 57344 2 usb_wwan,option
videodev 237568 3 videobuf2_v4l2,uvcvideo,videobuf2_common
hid_sensor_accel_3d 20480 0
hid_sensor_gyro_3d 20480 0
snd 94208 27 snd_ctl_led,snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
processor_thermal_device_pci_legacy 16384 0
processor_thermal_device 20480 1 processor_thermal_device_pci_legacy
dcdbas 20480 1 dell_smbios
mc 57344 5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
hid_sensor_trigger 20480 8 hid_sensor_gyro_3d,hid_sensor_custom_intel_hinge,hid_sensor_als,hid_sensor_accel_3d
dell_wmi_sysman 40960 0
industrialio_triggered_buffer 16384 1 hid_sensor_trigger
soundcore 16384 2 snd_ctl_led,snd
kfifo_buf 16384 1 industrialio_triggered_buffer
mei_me 40960 1
dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios
hid_sensor_iio_common 20480 5 hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_custom_intel_hinge,hid_sensor_als,hid_sensor_accel_3d
processor_thermal_rfim 16384 1 processor_thermal_device
ecdh_generic 16384 2 bluetooth
firmware_attributes_class 16384 1 dell_wmi_sysman
wmi_bmof 16384 0
cfg80211 892928 3 iwlmvm,iwlwifi,mac80211
industrialio 86016 8 industrialio_triggered_buffer,hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_custom_intel_hinge,kfifo_buf,hid_sensor_als,hid_sensor_accel_3d
hid_multitouch 28672 0
processor_thermal_mbox 16384 2 processor_thermal_rfim,processor_thermal_device
ecc 36864 1 ecdh_generic
mei 131072 3 mei_hdcp,mei_me
processor_thermal_rapl 20480 1 processor_thermal_device
intel_rapl_common 24576 2 intel_rapl_msr,processor_thermal_rapl
ucsi_acpi 16384 0
intel_pmt_telemetry 16384 0
cros_ec_ishtp 20480 0
typec_ucsi 40960 1 ucsi_acpi
intel_pmt_class 16384 1 intel_pmt_telemetry
intel_soc_dts_iosf 20480 1 processor_thermal_device_pci_legacy
igen6_edac 24576 0
typec 57344 1 typec_ucsi
cros_ec 20480 1 cros_ec_ishtp
int3403_thermal 20480 0
soc_button_array 20480 0
int340x_thermal_zone 20480 2 int3403_thermal,processor_thermal_device
mac_hid 16384 0
intel_hid 24576 0
int3400_thermal 20480 0
acpi_thermal_rel 16384 1 int3400_thermal
sparse_keymap 16384 2 intel_hid,dell_wmi
acpi_pad 184320 0
acpi_tad 16384 0
sch_fq_codel 20480 2
msr 16384 0
parport_pc 45056 0
ppdev 24576 0
lp 20480 0
parport 65536 3 parport_pc,lp,ppdev
ramoops 28672 0
pstore_blk 16384 0
reed_solomon 24576 1 ramoops
pstore_zone 28672 1 pstore_blk
efi_pstore 16384 0
ip_tables 32768 0
x_tables 49152 5 xt_conntrack,nft_compat,xt_addrtype,ip_tables,xt_MASQUERADE
autofs4 45056 2
dm_crypt 53248 1
usbhid 57344 0
hid_sensor_custom 24576 0
hid_sensor_hub 24576 7 hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_custom_intel_hinge,hid_sensor_als,hid_sensor_accel_3d,hid_sensor_custom
intel_ishtp_loader 20480 0
intel_ishtp_hid 24576 0
hid_generic 16384 0
rtsx_pci_sdmmc 28672 0
i915 2478080 34
nvme 49152 3
i2c_algo_bit 16384 1 i915
crct10dif_pclmul 16384 1
ttm 69632 1 i915
crc32_pclmul 16384 0
drm_kms_helper 258048 1 i915
ghash_clmulni_intel 16384 0
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
psmouse 155648 0
sysimgblt 16384 1 drm_kms_helper
aesni_intel 376832 6
fb_sys_fops 16384 1 drm_kms_helper
cec 53248 2 drm_kms_helper,i915
rc_core 61440 1 cec
rtsx_pci 94208 1 rtsx_pci_sdmmc
i2c_i801 36864 0
crypto_simd 16384 1 aesni_intel
drm 557056 16 drm_kms_helper,i915,ttm
intel_lpss_pci 24576 0
intel_ish_ipc 24576 0
cryptd 24576 4 crypto_simd,ghash_clmulni_intel
intel_lpss 16384 1 intel_lpss_pci
xhci_pci 24576 0
thunderbolt 278528 0
i2c_smbus 20480 1 i2c_i801
intel_ishtp 53248 4 cros_ec_ishtp,intel_ishtp_hid,intel_ish_ipc,intel_ishtp_loader
nvme_core 131072 4 nvme
idma64 20480 0
xhci_pci_renesas 20480 1 xhci_pci
intel_pmt 16384 0
wmi 32768 5 dell_wmi_sysman,dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
i2c_hid_acpi 16384 0
i2c_hid 28672 1 i2c_hid_acpi
hid 139264 6 i2c_hid,usbhid,hid_multitouch,hid_sensor_hub,intel_ishtp_hid,hid_generic
video 53248 3 dell_wmi,dell_laptop,i915
pinctrl_tigerlake 32768 1
and
** mmcli
Code:
for i in `seq 0 8`; do sudo mmcli -m $i;done
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem
error: couldn't find modem