pues para ver el hardware que tienes, si es PCI usa lspci, te data una salida como esta:
[alex@laptop-alex ~]$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.7 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #8 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 3D controller: NVIDIA Corporation GP108M [GeForce MX150] (rev ff)
[b]02:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)[/b]
03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961
[alex@laptop-alex ~]$
Y de esa lista buscas el que ponga algo de wifi...
02:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
Si es USB pues usa lsusb en vez de lspci, la salida será muy similar...
[alex@laptop-alex ~]$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 03f0:0024 HP, Inc KU-0316 Keyboard
Bus 001 Device 005: ID 04f3:0c1a Elan Microelectronics Corp.
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 04f2:b59a Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 8087:0a2b Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[alex@laptop-alex ~]$
Una vez que sepas que adaptador tienes, te toca buscar inforamcion por posibles problemas.
¿Como intentas conectar a la wifi? ¿Que distribución estas usando? ¿Que entorno de escitorio?
