[SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

Bloby · 2025-08-24 00:58:09

Hi, recently my internet began to not work, showing i was online but not being able to acess anything, i them found someone with the same wifi card as me (https://bbs.archlinux.org/viewtopic.php?id=307612)and said downgrading one version of linux firmware for realtek solved, after i tried that, my wifi networ manager stopped showing completally in the network manager, and could only connect online via ethernet wich i am now at.
Im using kde-plasma for DE
output from lspci:

 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
03:00.0 Non-Volatile memory controller: Solid State Storage Technology Corporation CL4-8D512 NVMe SSD M.2 (DRAM-less) (rev 03)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barcelo (rev c1)
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir/Cezanne HDMI/DP Audio Controller
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir/Cezanne Platform Security Processor
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Audio Coprocessor (rev 01)
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller
04:00.7 Signal processing controller: Advanced Micro Devices, Inc. [AMD] Sensor Fusion Hub

ip link:

 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 50:a1:32:61:b3:b5 brd ff:ff:ff:ff:ff:ff
    altname enx50a13261b3b5

rfkill list:

 0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

I tried to look up my problem in a lot of places online but this everything i did, pls if someon can show me a light i would apreciate it
my apologies for my english

Last edited by Bloby (2025-08-24 18:53:36)

_lex_1234 · 2025-08-24 07:38:20

Did you try a complete shutdown of the machine, instead of a reboot to see if the wifi card reappeared?

Does dmesg show the card or the firmware being loaded?
You can post dmesg and journactl output using

dmesg | curl -F 'file=@-' 0x0.st
journalctl -b | curl -F 'file=@-' 0x0.st

Also, to verify firmware version installed, what does

pacman -Q linux-firmware-realtek

give?

Alex.

Last edited by _lex_1234 (2025-08-24 08:20:00)

Bloby · 2025-08-24 12:38:53

About the output of the output of

_lex_1234 wrote:

dmesg | curl -F 'file=@-' 0x0.st
journalctl -b | curl -F 'file=@-' 0x0.st

it gave me:

 http://0x0.st/KiCf.txt

for

_lex_1234 wrote:

pacman -Q linux-firmware-realtek

its: linux-firmware-realtek 20250708-1

Im om a laptop, but i tried forced shutoff and also did not work

seth · 2025-08-24 12:49:31

lspci -k -D -s 02:00.0

Did you install but not rebuild https://aur.archlinux.org/packages/8852be-dkms-git ??
The device isn't picked up by any kernel module at all, smells blacklisted - that's not the firmware.

Bloby · 2025-08-24 13:49:45

Thank you seth, i did not rebuild the aur package i did not know i had to do that im sorry i looked online drivers for my wifi card and one of the searches linked me to the aur package and i installed via yay bot did not rebuild, but now my home wifi shows and connect correctly, but now it show's two kernel modules on

seth wrote:

lspci -k -D -s 02:00.0

 0000:02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        DeviceName: Onboard LAN Brodcom
        Subsystem: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        Kernel driver in use: rtw89_8852be_git
        Kernel modules: rtw89_8852be, rtw89_8852be_gitc

for now its working but i dont know about the two modules and for future updates that might break it again

seth · 2025-08-24 14:04:16

The device is actually supported by an in-tree module (rtw89_8852be) since 6.1 or so - the AUR driver is essentially just "in the way" (unless the in-tree module picks up the device but then doesn't work™ - for which so far there's no indication because the in-tree module gets shadowed by your AUR driver)
You should™ be able to just uninstall the dkms module from the package (and the package) and then have the chip picked up by the in-tree module and function this way.
Otherwise please post updated journal, lspci -k and in doubt

modprobe -c | grep -v alias | grep rtw89

Bloby · 2025-08-24 14:27:20

Ok, the updated lspci -k:

 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex
        Subsystem: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
        Subsystem: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
        Subsystem: Advanced Micro Devices, Inc. [AMD] Device 1453
        Kernel driver in use: pcieport
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
        Subsystem: Advanced Micro Devices, Inc. [AMD] Device 1453
        Kernel driver in use: pcieport
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge
        Subsystem: Advanced Micro Devices, Inc. [AMD] Device 1453
        Kernel driver in use: pcieport
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
        Subsystem: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus
        Kernel driver in use: pcieport


00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
        Subsystem: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
        Kernel driver in use: piix4_smbus
        Kernel modules: i2c_piix4, sp5100_tco
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
        Subsystem: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 3
        Kernel driver in use: k10temp
        Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 7
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)
        Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller
        Kernel driver in use: r8169
        Kernel modules: r8169
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        DeviceName: Onboard LAN Brodcom
        Subsystem: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        Kernel driver in use: rtw89_8852be_git
        Kernel modules: rtw89_8852be, rtw89_8852be_git
03:00.0 Non-Volatile memory controller: Solid State Storage Technology Corporation CL4-8D512 NVMe SSD M.2 (DRAM-less) (rev 03)
        Subsystem: Silicon Motion, Inc. Device 2267
        Kernel driver in use: nvme
        Kernel modules: nvme
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barcelo (rev c1)
        Subsystem: Emdoor Digital Technology Co., Ltd Device 1100
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir/Cezanne HDMI/DP Audio Controller
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Renoir/Cezanne HDMI/DP Audio Controller
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir/Cezanne Platform Security Processor
        Subsystem: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir/Cezanne Platform Security Processor
        Kernel driver in use: ccp
        Kernel modules: ccp
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
        Subsystem: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
        Kernel driver in use: xhci_hcd
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
        Subsystem: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1
        Kernel driver in use: xhci_hcd
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Audio Coprocessor (rev 01)
        Subsystem: Emdoor Digital Technology Co., Ltd Device 1207
        Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x, snd_acp_pci, snd_rpl_pci_acp6x, snd_pci_ps, snd_sof_amd_renoir, snd_sof_amd_rembrandt, snd_sof_amd_vangogh, snd_sof_amd_acp63, snd_sof_amd_acp70
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller
        DeviceName: HD Audio Controller
        Subsystem: Emdoor Digital Technology Co., Ltd Device 1207
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
04:00.7 Signal processing controller: Advanced Micro Devices, Inc. [AMD] Sensor Fusion Hub
        Subsystem: Advanced Micro Devices, Inc. [AMD] Sensor Fusion Hub
        Kernel driver in use: pcie_mp2_amd
        Kernel modules: amd_sfh

The updated journal (i believe):

 http://0x0.st/K-r4.txt

and

seth wrote:

modprobe -c | grep -v alias | grep rtw89

 blacklist rtw89_8851bu
blacklist rtw89_8851be
blacklist rtw89_8851b
blacklist rtw89_8852au
blacklist rtw89_8852ae
blacklist rtw89_8852a
blacklist rtw89_8852b_common
blacklist rtw89_8852bu
blacklist rtw89_8852be
blacklist rtw89_8852b
blacklist rtw89_8852bte
blacklist rtw89_8852bt
blacklist rtw89_8852cu
blacklist rtw89_8852ce
blacklist rtw89_8852c
blacklist rtw89_8922au
blacklist rtw89_8922ae
blacklist rtw89_8922a
blacklist rtw89_core
blacklist rtw89_usb
blacklist rtw89_pci
options rtw89_core_git debug_mask=0x0
options rtw89_core_git disable_ps_mode=n
options rtw89_pci_git disable_clkreq=n
options rtw89_pci_git disable_aspm_l1=n
options rtw89_pci_git disable_aspm_l1ss=n
options rtw89_usb_git switch_usb_mode=y

seth · 2025-08-24 14:31:00

The git module and (as suspected) its black-list are still in place, maybe remnants in the initramfs (and you need to run mkinitcpio)?

pacman -Qs 8852
dkms status
modinfo rtw89_8852be_git

Last edited by seth (2025-08-24 14:31:16)

Bloby · 2025-08-24 14:46:54

the results:
Pacman -Qs 8852:

 local/8852be-dkms-git 1.15.10.0.5.0.4-1
    Realtek RTL8852BE Wi-Fi driver for Radxa.

dkms status:

 8852be/1.15.10.0.5.0.4: added
rtw89/r1425.2b491dc, 6.16.3-arch1-1, x86_64: installed

modinfo rtw89_8852be_git:

 filename:       /lib/modules/6.16.3-arch1-1/updates/dkms/rtw89_8852be_git.ko.zst
license:        Dual BSD/GPL
description:    Realtek 802.11ax wireless 8852BE driver
author:         Realtek Corporation
srcversion:     A95F6011455604F9633FF81
alias:          pci:v000010ECd0000B85Bsv*sd*bc*sc*i*
alias:          pci:v000010ECd0000B852sv*sd*bc*sc*i*
depends:        rtw89_pci_git,rtw89_8852b_git
name:           rtw89_8852be_git
retpoline:      Y
vermagic:       6.16.3-arch1-1 SMP preempt mod_unload 
sig_id:         PKCS#7
signer:         DKMS module signing key
sig_key:        12:6C:23:DD:B0:04:D3:A5:70:1D:D7:B4:ED:96:E6:76:6D:27:C6:67
sig_hashalgo:   sha512
signature:      15:2A:F0:5A:10:49:3E:77:FA:02:50:A8:3D:F2:C7:78:AB:69:CD:5F:
                81:23:19:C0:E1:28:12:6C:11:25:CE:78:6C:9C:DC:3C:FF:91:16:E1:
                2B:53:C8:3E:76:96:86:1E:B8:BE:2D:D0:D6:4F:EF:A5:E8:01:26:42:
                99:1A:6A:95:90:17:94:0C:08:73:14:97:EF:2D:DB:A9:B7:26:B4:33:
                F6:AE:B5:B5:EA:D4:14:8E:A9:F2:38:DA:D5:E6:F0:80:57:AC:CE:9A:
                5E:03:CB:8F:C6:2B:E4:B2:D2:12:82:6B:6B:2F:5F:43:23:1F:85:CD:
                6C:76:08:B4:72:38:A3:A5:6D:EA:9C:CC:4E:B9:EC:A4:02:5C:CA:D8:
                1D:DB:AE:3A:B0:8D:56:39:40:84:05:A7:A7:02:CB:3A:F3:93:88:AD:
                E0:9F:9D:A2:44:4D:63:11:AB:3E:1A:F0:1C:D9:AF:8F:73:9C:39:AE:
                BC:9C:51:F8:87:32:45:2E:45:EA:9D:1B:7A:DB:CA:39:0E:15:98:7B:
                1F:37:BF:C9:28:B2:C0:1A:6A:18:AF:01:A4:B8:12:09:96:62:99:E0:
                D7:9A:CA:22:7D:08:1C:56:30:21:D0:2E:77:C9:66:E3:13:68:51:58:
                04:D9:20:2A:3C:F3:DC:DF:A1:65:B1:5A:31:39:D7:73

what would "run mkinitcpio" be?

Bloby · 2025-08-24 14:48:38

bloby wrote:

what would "run mkinitcpio" be?

is this it?

 ==> Starting dry run: '6.16.3-arch1-1'
  -> Running build hook: [base]
  -> Running build hook: [udev]
  -> Running build hook: [autodetect]
  -> Running build hook: [microcode]
  -> Running build hook: [modconf]
  -> Running build hook: [kms]
  -> Running build hook: [keyboard]
  -> Running build hook: [keymap]
  -> Running build hook: [consolefont]
==> WARNING: consolefont: no font found in configuration
  -> Running build hook: [block]
  -> Running build hook: [filesystems]
  -> Running build hook: [fsck]
==> Generating module dependencies
==> Dry run complete, use -g IMAGE to generate a real image

seth · 2025-08-24 14:52:33

The AUR package is still fully installed.
https://wiki.archlinux.org/title/Dynami … ve_modules
Then remove the package.

Whether or not you'll have to rebuild the initramfs wel'll see.
This is if you want to move on using the in-tree module, you /can/ continue to use the dkms module from the AUR but will have to remember to update it (dkms rebuilds automatically but every now and then the old sources will just become incompatible w/ the newer kernel)

Bloby · 2025-08-24 15:36:37

did that now the lspci -k -D -s 02:00.0 shows only one module:

 0000:02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        DeviceName: Onboard LAN Brodcom
        Subsystem: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
        Kernel driver in use: rtw89_8852be
        Kernel modules: rtw89_8852be

seth · 2025-08-24 18:27:19

\o/
If the network still works and please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Bloby · 2025-08-24 18:52:24

will do thank you

Arch Linux

#1 2025-08-24 00:58:09

[SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#2 2025-08-24 07:38:20

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#3 2025-08-24 12:38:53

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#4 2025-08-24 12:49:31

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#5 2025-08-24 13:49:45

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#6 2025-08-24 14:04:16

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#7 2025-08-24 14:27:20

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#8 2025-08-24 14:31:00

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#9 2025-08-24 14:46:54

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#10 2025-08-24 14:48:38

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#11 2025-08-24 14:52:33

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#12 2025-08-24 15:36:37

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#13 2025-08-24 18:27:19

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

#14 2025-08-24 18:52:24

Re: [SOLVED] Cant connect to wifi (RTL8852BE realtek wifi card)

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