Install Realtek RTL8821CE WiFi Driver

afdrnk · September 12, 2020, 11:00am

After 5.8.7.20 is installed, Wi-Fi is disabled.
In the past, I always used:

> su
> sudo dnf update
> sudo dnf install dkms make kernel-devel -y
> git clone https://github.com/tomaspinho/rtl8821ce.git
> cd rtl8821ce
> sudo ./dkms-install.sh

> [fedora001@localhost ~]$ su
> Password: 
> [root@localhost fedora001]# sudo dnf update
> Waiting for process with pid 22599 to finish.
> Last metadata expiration check: 0:01:25 ago on Sat 12 Sep 2020 05:34:44 PM +07.
> Dependencies resolved.
> Nothing to do.
> Complete!
> [root@localhost fedora001]# sudo dnf install dkms make kernel-devel -y
> Last metadata expiration check: 0:03:39 ago on Sat 12 Sep 2020 05:34:44 PM +07.
> Package dkms-2.8.3-1.fc32.noarch is already installed.
> Package make-1:4.2.1-16.fc32.x86_64 is already installed.
> Package kernel-devel-5.7.17-200.fc32.x86_64 is already installed.
> Package kernel-devel-5.8.6-201.fc32.x86_64 is already installed.
> Package kernel-devel-5.8.7-200.fc32.x86_64 is already installed.
> Dependencies resolved.
> Nothing to do.
> Complete!
> [root@localhost fedora001]# git clone https://github.com/tomaspinho/rtl8821ce.git
> Cloning into 'rtl8821ce'...
> remote: Enumerating objects: 28, done.
> remote: Counting objects: 100% (28/28), done.
> remote: Compressing objects: 100% (20/20), done.
> remote: Total 1587 (delta 9), reused 18 (delta 6), pack-reused 1559
> Receiving objects: 100% (1587/1587), 5.79 MiB | 244.00 KiB/s, done.
> Resolving deltas: 100% (869/869), done.
> [root@localhost fedora001]# cd rtl8821ce
> [root@localhost rtl8821ce]# sudo ./dkms-install.sh
> About to run dkms install steps...
> Error! DKMS tree already contains: rtl8821ce-v5.5.2_34066.20200325
> You cannot add the same module/version combo more than once.
> Module rtl8821ce/v5.5.2_34066.20200325 already built for kernel 5.8.7-200.fc32.x86_64/4
> Module rtl8821ce/v5.5.2_34066.20200325 already installed on kernel 5.8.7-200.fc32.x86_64/x86_64
> Finished running dkms install steps.
> [root@localhost rtl8821ce]#

Wi-Fi is still disabled.
Help me please.

vgaetera · September 12, 2020, 11:39am

Perform cold boot and check the output:

nmcli radio all; rfkill list all

afdrnk · September 12, 2020, 3:02pm

[fedora001@localhost ~]$ su
Password:
[root@localhost fedora001]# nmcli radio all; rfkill list all
WIFI-HW WIFI WWAN-HW WWAN
enabled enabled enabled enabled
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
[root@localhost fedora001]#

vgaetera · September 12, 2020, 3:05pm

lspci -n -n -k; lsusb -v -v -t

You can post as text.

afdrnk · September 12, 2020, 3:09pm

[fedora001@localhost ~]$ su
Password: 
[root@localhost fedora001]# nmcli radio all; rfkill list all
WIFI-HW  WIFI     WWAN-HW  WWAN    
enabled  enabled  enabled  enabled 
0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
[root@localhost fedora001]# lspci -n -n -k; lsusb -v -v -t
00:00.0 Host bridge [0600]: Intel Corporation Gemini Lake Host Bridge [8086:31f0] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
00:00.1 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Dynamic Platform and Thermal Framework Processor Participant [8086:318c] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device
00:00.3 System peripheral [0880]: Intel Corporation Device [8086:3190] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 605 [8086:3184] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: i915
	Kernel modules: i915
00:0e.0 Audio device [0403]: Intel Corporation Celeron/Pentium Silver Processor High Definition Audio [8086:3198] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci
00:0f.0 Communication controller [0780]: Intel Corporation Celeron/Pentium Silver Processor Trusted Execution Engine Interface [8086:319a] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:12.0 SATA controller [0106]: Intel Corporation Device [8086:31e3] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: ahci
00:13.0 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31d8] (rev f3)
	Kernel driver in use: pcieport
00:13.2 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31da] (rev f3)
	Kernel driver in use: pcieport
00:13.3 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31db] (rev f3)
	Kernel driver in use: pcieport
00:14.0 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31d6] (rev f3)
	Kernel driver in use: pcieport
00:14.1 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31d7] (rev f3)
	Kernel driver in use: pcieport
00:15.0 USB controller [0c03]: Intel Corporation Device [8086:31a8] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: xhci_hcd
00:17.0 Signal processing controller [1180]: Intel Corporation Device [8086:31b4] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: intel-lpss
00:17.3 Signal processing controller [1180]: Intel Corporation Device [8086:31ba] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: intel-lpss
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:31e8] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
00:1f.1 SMBus [0c05]: Intel Corporation Celeron/Pentium Silver Processor Gaussian Mixture Model [8086:31d4] (rev 03)
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
	DeviceName: Hanksville Gbe Lan Connection
	Subsystem: Hewlett-Packard Company Device [103c:849e]
	Kernel driver in use: r8169
	Kernel modules: r8169
05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
	DeviceName: WLAN
	Subsystem: Hewlett-Packard Company Device [103c:831a]
	Kernel modules: 8821ce
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/7p, 5000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
    /sys/bus/usb/devices/usb2  /dev/bus/usb/002/001
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    /sys/bus/usb/devices/usb1  /dev/bus/usb/001/001
    |__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        ID 214b:7250 Huasheng Electronics 
        /sys/bus/usb/devices/1-3  /dev/bus/usb/001/002
        |__ Port 2: Dev 8, If 0, Class=Wireless, Driver=rndis_host, 480M
            ID 2717:ff80 Xiaomi Inc. Mi/Redmi series (RNDIS)
            /sys/bus/usb/devices/1-3.2  /dev/bus/usb/001/008
        |__ Port 2: Dev 8, If 1, Class=CDC Data, Driver=rndis_host, 480M
            ID 2717:ff80 Xiaomi Inc. Mi/Redmi series (RNDIS)
            /sys/bus/usb/devices/1-3.2  /dev/bus/usb/001/008
        |__ Port 3: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
            ID 046d:c077 Logitech, Inc. M105 Optical Mouse
            /sys/bus/usb/devices/1-3.3  /dev/bus/usb/001/006
        |__ Port 1: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
            ID 046d:c31c Logitech, Inc. Keyboard K120
            /sys/bus/usb/devices/1-3.1  /dev/bus/usb/001/004
        |__ Port 1: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
            ID 046d:c31c Logitech, Inc. Keyboard K120
            /sys/bus/usb/devices/1-3.1  /dev/bus/usb/001/004
    |__ Port 7: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
        ID 0408:5310 Quanta Computer, Inc. 
        /sys/bus/usb/devices/1-7  /dev/bus/usb/001/003
    |__ Port 7: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
        ID 0408:5310 Quanta Computer, Inc. 
        /sys/bus/usb/devices/1-7  /dev/bus/usb/001/003
    |__ Port 8: Dev 5, If 1, Class=Wireless, Driver=btusb, 12M
        ID 0bda:b00a Realtek Semiconductor Corp. Realtek Bluetooth 4.2 Adapter
        /sys/bus/usb/devices/1-8  /dev/bus/usb/001/005
    |__ Port 8: Dev 5, If 0, Class=Wireless, Driver=btusb, 12M
        ID 0bda:b00a Realtek Semiconductor Corp. Realtek Bluetooth 4.2 Adapter
        /sys/bus/usb/devices/1-8  /dev/bus/usb/001/005
[root@localhost fedora001]#

vgaetera · September 12, 2020, 3:18pm

Remove all old kernels leaving only the latest one and check:

rpm -q -a kernel\* | sort

Then try to reinstall the driver:

cd rtl8821ce
chmod +x dkms-*.sh
sudo ./dkms-remove.sh
sudo ./dkms-install.sh

afdrnk · September 12, 2020, 3:57pm

Dear vgaetera,
The Wi-Fi is enabled.
Thank you so much for your assistance.

system · October 10, 2020, 3:58pm

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.

augenauf · April 29, 2024, 12:36pm

Added realtek, rtl8821ce

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