[SOLVED] Wifi adapter not detected

Questions about hardware, drivers and peripherals
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

Code: Select all

$ lspci -nnk | grep -iA3 net
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (14) I219-V [8086:15fa] (rev 11)
	DeviceName: Onboard - Ethernet
	Subsystem: ASUSTeK Computer Inc. Ethernet Connection (14) I219-V [1043:8672]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:2487] (rev a1)
--
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b821]
	Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:b821]
04:00.0 Non-Volatile memory controller [0108]: Kingston Technology Company, Inc. Device [2646:2262] (rev 03)
	Subsystem: Kingston Technology Company, Inc. Device [2646:2262]
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

Try:

Code: Select all

 sudo apt-get install rtl8821ce-dkms 
Reboot
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

still no, should i have removed rtl8821ce from dkms first?
i didnt have to run rtl8821ce-dkms first did i?
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

Well, I dunno. Let's see if a driver even shows up now:

Code: Select all

 inxi -Nn 
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

still no :'(

Code: Select all

Network:
  Device-1: Intel Ethernet I219-V driver: e1000e 
  IF: eno1 state: down mac: fc:34:97:bc:14:a8 
  Device-2: Realtek driver: N/A 
  IF-ID-1: usb0 state: unknown speed: -1 duplex: half mac: 92:4e:84:2b:4b:a8 
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

Odd, not sure why that driver won't install. Maybe try the commands Larry posted before.
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

already did
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

bradeythedev wrote: Thu Jan 27, 2022 1:41 am already did
Since you installed the 5.13 kernel?
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

i tried it again with the new kernel and it says they're already installed for 5.13
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

I was just reading this:

Kernel 5.13 has built-in rtl8821ce (rtw88_8821ce) driver. If you install kernel 5.13, you must remove rtl8821ce-dkms package after installation.
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

Try:

Code: Select all

 sudo apt-get purge rtl8821ce-dkms 
Reboot
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

still no
maybe i should just find a way to get an ethernet cable in my room
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

Someone else might solve this yet, but I'm out of ideas for now. :(
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

i just found out the port it screws onto is attatched to a card inside the pc, so its not just the antenna. did u know this or am i just dumb
sleeper12
Level 21
Level 21
Posts: 14609
Joined: Thu May 25, 2017 3:22 pm

Re: Wifi adapter not detected

Post by sleeper12 »

I was about to suggest maybe you remove & reinsert it. Worth a try anyway.
JeremyB
Level 21
Level 21
Posts: 13881
Joined: Fri Feb 21, 2014 8:17 am

Re: Wifi adapter not detected

Post by JeremyB »

Post result from terminal, if any as I doubt it for

Code: Select all

modprobe -c | grep -i b821
I bet you do see a result for

Code: Select all

modprobe -c | grep -i c821
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

exactly right

Code: Select all

$ modprobe -c | grep -i c821
alias pci:v000010ECd0000C821sv*sd*bc*sc*i* rtw88_8821ce
alias pci:v000010ECd0000C821sv*sd*bc*sc*i* 8821ce
alias wmi:2B4F501A_BD3C_4394_8DCF_00A7D2BC8210 lg_laptop
JeremyB
Level 21
Level 21
Posts: 13881
Joined: Fri Feb 21, 2014 8:17 am

Re: Wifi adapter not detected

Post by JeremyB »

We might be able to cheat and see if the driver will work

Code: Select all

sudo sed -i 's/C821/B821/' /lib/modules/$(uname -r)/updates/8821ce.ko
sudo depmod -a
Reboot
bradeythedev
Level 1
Level 1
Posts: 28
Joined: Mon Jan 24, 2022 10:40 pm

Re: Wifi adapter not detected

Post by bradeythedev »

first of all, "/lib/modules/$(uname -r)/updates/8821ce.ko" doesn't exist, however "/lib/modules/$(uname -r)/updates/dkms/8821ce.ko" does so i used that instead.
second of all, nope
JeremyB
Level 21
Level 21
Posts: 13881
Joined: Fri Feb 21, 2014 8:17 am

Re: Wifi adapter not detected

Post by JeremyB »

Remove the rtl8821ce-dkms with sudo apt remove rtl8821ce-dkms and I will work on a fix for you to test
Locked

Return to “Hardware Support”