I have a dual-boot OS configuration on my HDD: Debian 11 and Microsoft Windows 
10.

My CPU belongs to Intel 4th generation (Haswell) and I even installed packages 
such as firmware-misc-nonfree firmware-iwlwifi firmware-realtek

Microsoft Windows 10 is able to detect and makes use of the wireless chipset on 
my computer's motherboard.

However, Debian 11 is unable to detect it (wireless chipset). I only installed 
the bare minimum lxqt-core and lightdm packages (no fanciful stuff).

I issued the command:

ip link show

and there is not a line that says something like wlan or wl01 etc...

Below is the output of lspci:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor 
DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor 
PCI Express x16 Controller (rev 06)
00:01.1 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor 
PCI Express x8 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor 
Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor 
HD Audio Controller (rev 06)
00:04.0 Signal processing controller: Intel Corporation Device 0c03 (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family 
USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series 
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family 
USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High 
Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI 
Express Root Port #1 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI 
Express Root Port #3 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI 
Express Root Port #4 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family 
USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM87 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 
6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus 
Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 8 Series Chipset Family 
Thermal Management Controller (rev 05)
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 
PCI Express Gigabit Ethernet Controller (rev 10)
07:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
0a:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 950M] (rev a2)

Could someone help me please? Thanks.


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