Wifi not working on hp laptop

[Jdw_11983]

I just installed Linux Mint Cinammon on my hp notebook 14 and the wifi is not working. It does work with an ethernet cable hooked up to the modem. Also, the wifi worked when I still had windows 10 on this device. The driver manager is blank when I try to use it.

I'm really new to Linux and only have just a few days of experience in using this operating system. I'm not very computer savvy.
Any advice or instructions on how to fix this would be great!

Thanks.

[JeremyB]

Post results from terminal for

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mokutil --sb-state; lspci -nnk | grep -iA3 net; rfkill list

[Jdw_11983]

$ mokutil --sb-state; lspci -nnk | grep -iA3 net; rfkill list
SecureBoot enabled
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:84b2]
Kernel driver in use: r8169
Kernel modules: r8169
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a]
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[JeremyB]

First step, reboot and get into BIOS settings and disable Secure Boot, likely in System Config/Boot Options, do not remove the Secure Boot keys, after booting do

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sudo apt install git dkms build-essential
git clone https://github.com/tomaspinho/rtl8821ce.git
cd rtl8821ce
sudo ./dkms-install.sh

Reboot

[Jdw_11983]

Ok. Nothing happened....wifi still not working.

[JeremyB]

Post results for

Code: Select all

mokutil --sb-state; lspci -nnk | grep -iA3 net; rfkill list; dkms status

[Jdw_11983]

I tried it again. This is what it brought up.

eading package lists... Done
Building dependency tree
Reading state information... Done
build-essential is already the newest version (12.4ubuntu1).
dkms is already the newest version (2.3-3ubuntu9.2).
git is already the newest version (1:2.17.1-1ubuntu0.4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

[Jdw_11983]

SecureBoot disabled
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:84b2]
Kernel driver in use: r8169
Kernel modules: r8169
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a]
Kernel modules: wl
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
bcmwl, 6.30.223.271+bdcom, 4.15.0-45-generic, x86_64: installed
rtlwifi-new, 0.6: added

[JeremyB]

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sudo apt remove bcmwl-kernel-source

Reboot

[Jdw_11983]

Ok. Done. What's next?

[JeremyB]

Open terminal and run

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wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info && cat wireless-info.txt | nc termbin.com 9999

Post termbin URL from terminal

[Jdw_11983]

--2019-02-17 07:28:57-- https://github.com/UbuntuForums/wireles ... eless-info
Resolving github.com (github.com)... 192.30.255.112, 192.30.255.113
Connecting to github.com (github.com)|192.30.255.112|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/Ubunt ... eless-info [following]
--2019-02-17 07:29:00-- https://raw.githubusercontent.com/Ubunt ... eless-info
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.52.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.52.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17452 (17K) [text/plain]
Saving to: ‘wireless-info’

wireless-info 100%[===================>] 17.04K --.-KB/s in 0.001s

Last-modified header missing -- time-stamps turned off.
2019-02-17 07:29:05 (31.6 MB/s) - ‘wireless-info’ saved [17452/17452]

[sudo] password for daniel:

Results saved in "/home/daniel/wireless-info.txt".

https://termbin.com/45ka

[JeremyB]

Try

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git clone https://github.com/tomaspinho/rtl8821ce.git
cd rtl8821ce
sudo ./dkms-install.sh

Reboot

[Jdw_11983]

Tried it and didn't work.

Thanks for the help. I might check this thread later and see if anything else gets posted.

Later.

[Jdw_11983]

Wifi is working now. The secure boot is still disabled. Is there a chance that might cause some problems for me?
Thanks.

[JeremyB]

Secure Boot being disabled is not a problem. There are plenty of computers online that don't even support the option

[Jdw_11983]

Ok. Thank you for the help. I appreciate it.