Ubuntu 18.04 WiFi 어댑터 Dell을 찾을 수 없음

오랫동안 Ubuntu 18.04를 사용하여 노트북을 이중 부팅했습니다. 하지만 최근에는 무선 네트워크에 연결할 수 없는 것 같으며 WiFi 설정에 "WiFi 어댑터를 찾을 수 없습니다"라고 표시됩니다. 많은 솔루션을 시도했지만 아무 것도 작동하지 않는 것 같습니다. 또한 이 lshw명령으로도 내 무선 인터페이스에 대한 정보가 표시되지 않는다는 점을 덧붙이고 싶습니다 . 아래에는 lshwand 명령의 출력이 나와 있습니다 rfkill.

sudo rfkill list   
  0:  hci0: Bluetooth  
  Soft blocked: no  
  Hard blocked: no

.

sudo lshw -c network
< outputs nothing >

.

sudo lshw -short
H/W path       Device       Class          Description
======================================================
                            system         Inspiron 7559 (0706)
/0                          bus            0H0CC0
/0/0                        memory         64KiB BIOS
/0/30                       memory         128KiB L1 cache
/0/31                       memory         128KiB L1 cache
/0/32                       memory         1MiB L2 cache
/0/33                       memory         6MiB L3 cache
/0/34                       processor      Intel(R) Core(TM) i7-6700HQ CPU @ 2.6
/0/35                       memory         8GiB System Memory
/0/35/0                     memory         8GiB SODIMM DDR3 Synchronous 1600 MHz
/0/35/1                     memory         DIMM LPDDR4 Synchronous 1600 MHz (0.6
/0/100                      bridge         Xeon E3-1200 v5/E3-1500 v5/6th Gen Co
/0/100/1                    bridge         Xeon E3-1200 v5/E3-1500 v5/6th Gen Co
/0/100/1.1                  bridge         Xeon E3-1200 v5/E3-1500 v5/6th Gen Co
/0/100/1.1/0                display        GM107M [GeForce GTX 960M]
/0/100/2                    display        HD Graphics 530
/0/100/4                    generic        Xeon E3-1200 v5/E3-1500 v5/6th Gen Co
/0/100/14                   bus            100 Series/C230 Series Chipset Family
/0/100/14/0    usb1         bus            xHCI Host Controller
/0/100/14/0/2               communication  OnePlus
/0/100/14/0/3               input          USB Receiver
/0/100/14/0/4               multimedia     Integrated_Webcam_HD
/0/100/14/0/5               communication  Bluetooth wireless interface
/0/100/14/0/6               input          Atmel maXTouch Digitizer
/0/100/14/1    usb2         bus            xHCI Host Controller
/0/100/14.2                 generic        100 Series/C230 Series Chipset Family
/0/100/15                   generic        100 Series/C230 Series Chipset Family
/0/100/16                   communication  100 Series/C230 Series Chipset Family
/0/100/17                   storage        HM170/QM170 Chipset SATA Controller [
/0/100/1c                   bridge         100 Series/C230 Series Chipset Family
/0/100/1c.6                 bridge         100 Series/C230 Series Chipset Family
/0/100/1c.6/0               generic        RTS522A PCI Express Card Reader
/0/100/1f                   bridge         HM170 Chipset LPC/eSPI Controller
/0/100/1f.2                 memory         Memory controller
/0/100/1f.3                 multimedia     100 Series/C230 Series Chipset Family
/0/100/1f.4                 bus            100 Series/C230 Series Chipset Family
/0/1           scsi1        storage        
/0/1/0.0.0     /dev/sda     disk           1TB TOSHIBA MQ02ABD1
/0/1/0.0.0/1   /dev/sda1    volume         499MiB Windows FAT volume
/0/1/0.0.0/2   /dev/sda2    volume         127MiB reserved partition
/0/1/0.0.0/3   /dev/sda3    volume         734GiB Windows NTFS volume
/0/1/0.0.0/4   /dev/sda4    volume         861MiB Windows NTFS volume
/0/1/0.0.0/5   /dev/sda5    volume         195GiB EXT4 volume
/1                          power          Battery Name
/2                          power          To Be Filled By O.E.M.
/3             enp0s20f0u2  network        Ethernet interface

편집: Windows에서도 무선 인터페이스를 감지할 수 없습니다.