[SOLVED] Wi-Fi not working on Debian

whois1230 · 03-01-2019, 09:09 AM

Hello, I installed the full Debian 9.8 stable 64-bit operating system(with 3 DVD .iso discs). There was an option called "non-free firmware", which stated that the wireless firmware is paid. I have a full 10GB+ OS, but only a wired connection option, and no Wireless. How can I fix this?

Timothy Miller · 03-01-2019, 09:15 AM

You can start by giving some information about your hardware.

Post the output of

Code:

lspci -nn

so we can see what the wireless chip is, there's a big difference between "non-free" and "paid", and very few actually cost (actually none I can think of nowadays, but I'm not familiar with all of them by any means).

whois1230 · 03-01-2019, 09:36 AM

Quote:

Originally Posted by Timothy Miller

You can start by giving some information about your hardware.

Post the output of

Code:

lspci -nn

so we can see what the wireless chip is, there's a big difference between "non-free" and "paid", and very few actually cost (actually none I can think of nowadays, but I'm not familiar with all of them by any means).

Code:

user@debian:~$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Device [8086:5904] (rev 02)
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:5916] (rev 02)
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21)
00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 21)
00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-LP CSME HECI #1 [8086:9d3a] (rev 21)
00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] [8086:9d03] (rev 21)
00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:9d12] (rev f1)
00:1c.3 PCI bridge [0604]: Intel Corporation Device [8086:9d13] (rev f1)
00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 [8086:9d18] (rev f1)
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:9d58] (rev 21)
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC [8086:9d21] (rev 21)
00:1f.3 Audio device [0403]: Intel Corporation Device [8086:9d71] (rev 21)
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21)
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
02:00.0 Network controller [0280]: Intel Corporation Intel Dual Band Wireless-AC 3165 Plus Bluetooth [8086:3166] (rev 99)
03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430] [1002:6660] (rev 83)
user@debian:~$

Timothy Miller · 03-01-2019, 10:05 AM

Make sure your non-free and contrib repos are enabled, and run

Code:

apt install firmware-iwlwifi

I'm not 100% sure if you MAY need to intall the backports kernel and firmware in order to support that card. I know the 3160 is supported by the 4.9 kernel in stable, but not sure about the 3165...

whois1230 · 03-01-2019, 01:32 PM

Quote:

Originally Posted by Timothy Miller

Make sure your non-free and contrib repos are enabled, and run

Code:

apt install firmware-iwlwifi

I'm not 100% sure if you MAY need to intall the backports kernel and firmware in order to support that card. I know the 3160 is supported by the 4.9 kernel in stable, but not sure about the 3165...

If I execute this command offline, will it install?

Timothy Miller · 03-01-2019, 01:37 PM

No, you'll need to have network connectivity.

hitest · 03-02-2019, 01:25 PM

I tend to use the unofficial repo of Debian which does include non-free firmware. The ISOs at this site will very likely include drivers for your wireless NIC. Just a suggestion.

https://cdimage.debian.org/cdimage/u...ding-firmware/

whois1230 · 03-02-2019, 04:06 PM

Quote:

Originally Posted by Timothy Miller

Make sure your non-free and contrib repos are enabled, and run

Code:

apt install firmware-iwlwifi

I'm not 100% sure if you MAY need to intall the backports kernel and firmware in order to support that card. I know the 3160 is supported by the 4.9 kernel in stable, but not sure about the 3165...

Hello and thanks, it worked without having to install the backports kernel and firmware.