WWAN problem Fibocom L831 @ lenovo x270

[zaaak]

0

Witam.
Posiadam nowo zainstalowany system mint ubuntu 21 na laptopie lenovo x270.
Mam problem z wbudowanym modemem WWAN . System poprawnie widzi go , potrafię utworzyć nowe połączenie ale z chwilą gdy w network manager wybieram połączenie LTE, modem zaczyna się wyłączać/włączać i tak na przemian.

wycinek z dmesg +inxi

Kod:

[  453.683543] usb 1-3: new high-speed USB device number 5 using xhci_hcd
[  453.840773] usb 1-3: New USB device found, idVendor=2cb7, idProduct=0202, bcdDevice= 0.00
[  453.840777] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[  455.706280] usb 1-3: USB disconnect, device number 5
[  460.459503] usb 1-3: new high-speed USB device number 6 using xhci_hcd
[  460.620620] usb 1-3: New USB device found, idVendor=2cb7, idProduct=0002, bcdDevice=17.29
[  460.620624] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  460.620626] usb 1-3: Product: L831-EAU-00
[  460.620628] usb 1-3: Manufacturer: FIBOCOM
[  460.620629] usb 1-3: SerialNumber: 004999010640000
[  460.692609] cdc_mbim 1-3:1.0: setting rx_max = 16384
[  460.693588] cdc_mbim 1-3:1.0: cdc-wdm0: USB WDM device
[  460.693914] cdc_mbim 1-3:1.0 wwan0: register 'cdc_mbim' at usb-0000:00:14.0-3, CDC MBIM, 7e:21:e3:5d:b6:ca
[  460.696513] cdc_acm 1-3:1.2: ttyACM0: USB ACM device
[  463.984407] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE
[  463.984724] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE
[  464.909959] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE
[  464.910157] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE
[  464.917086] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE
[  464.917257] cdc_mbim 1-3:1.0: nonzero urb status received: -EPIPE


inxi -Fxz
System:
  Kernel: 5.4.0-88-generic x86_64 bits: 64 compiler: gcc v: 9.3.0
  Desktop: Cinnamon 5.0.5 Distro: Linux Mint 20.2 Uma
  base: Ubuntu 20.04 focal
Machine:
  Type: Laptop System: LENOVO product: 20HMS04P11 v: ThinkPad X270
  serial: <filter>
  Mobo: LENOVO model: 20HMS04P11 v: SDK0J40697 WIN serial: <filter>
  UEFI: LENOVO v: R0IET56W (1.34 ) date: 01/22/2019
Battery:
  ID-1: BAT0 charge: 17.7 Wh condition: 21.6/24.0 Wh (90%)
  model: SMP 01AV459 status: Discharging
  ID-2: BAT1 charge: 1.1 Wh condition: 19.5/23.5 Wh (83%) model: LGC 45N1127
  status: Unknown
CPU:
  Topology: Dual Core model: Intel Core i7-7600U bits: 64 type: MT MCP
  arch: Amber Lake rev: 9 L2 cache: 4096 KiB
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  bogomips: 23199
  Speed: 800 MHz min/max: 400/3900 MHz Core speeds (MHz): 1: 800 2: 800
  3: 800 4: 800
Graphics:
  Device-1: Intel HD Graphics 620 vendor: Lenovo driver: i915 v: kernel
  bus ID: 00:02.0
  Display: x11 server: X.Org 1.20.11 driver: modesetting
  unloaded: fbdev,vesa resolution: 1920x1080~60Hz
  OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.0.3
  direct render: Yes
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo
  driver: snd_hda_intel v: kernel bus ID: 00:1f.3
  Sound Server: ALSA v: k5.4.0-88-generic
Network:
  Device-1: Intel Ethernet I219-LM vendor: Lenovo driver: e1000e v: 3.2.6-k
  port: efa0 bus ID: 00:1f.6
  IF: enp0s31f6 state: down mac: <filter>
  Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel port: efa0
  bus ID: 03:00.0
  IF: wlp3s0 state: up mac: <filter>
  IF-ID-1: wwan0 state: down mac: <filter>
Drives:
  Local Storage: total: 476.94 GiB used: 8.36 GiB (1.8%)
  ID-1: /dev/sda vendor: SanDisk model: SD8SN8U-512G-1006 size: 476.94 GiB
Partition:
  ID-1: / size: 365.68 GiB used: 8.34 GiB (2.3%) fs: ext4 dev: /dev/sda5
  ID-2: swap-1 size: 6.75 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda6
Sensors:
  System Temperatures: cpu: 51.0 C mobo: N/A
  Fan Speeds (RPM): cpu: 4491
Info:
  Processes: 219 Uptime: 38m Memory: 15.52 GiB used: 1.16 GiB (7.5%)
  Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17
  inxi: 3.0.38

proszę o pomoc .

Pozdrawiam zaaak

Dedito:/ Podając wyniki komend bądź logi proszę używać znaczników - CODE. Wynik podajemy razem z poleceniem, które je wywołuje