Viniosu
Fevereiro 10, 2026, 4:30pm
1
Primeira vez indo a qualquer linux sem ser pela rede cabeada, no entanto, nunca me aprofundei realmente qualquer um deles, mas tenho bastante interesse em aprender mais sobre o linux em geral.
Desde a primeira instalação do cachyOS com esse adaptador, sempre estou tendo esses problemas onde o sistema simplesmente trava sem motivo, e as unicas coisas que funcionam são as barras superiores das abas que ja estavam abertas, no entanto, não consigo digitar nada nem interagir com a janela por meio do mouse.
o adaptador funciona quando não está baixando algo muito grande, em uso diario em coisas como uso no navegador e etc.
abaixo está as informações sobre o sistema, como é pedido no ponto 6 do guia de posts para iniciantes do forum.
System:
Kernel: 6.18.9-2-cachyos arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.5.5 Distro: CachyOS
Machine:
Type: Desktop Mobo: BIOSTAR model: B450MHP serial: <superuser required>
Firmware: UEFI vendor: American Megatrends LLC. v: 5.17 date: 09/05/2023
CPU:
Info: quad core model: AMD Ryzen 5 3350G with Radeon Vega Graphics bits: 64
type: MT MCP cache: L2: 2 MiB
Speed (MHz): avg: 1255 min/max: 1400/3600 cores: 1: 1255 2: 1255 3: 1255
4: 1255 5: 1255 6: 1255 7: 1255 8: 1255
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Picasso/Raven 2 [Radeon Vega
Series / Radeon Mobile Series] driver: amdgpu v: kernel
Display: x11 server: X.Org v: 21.1.21 with: Xwayland v: 24.1.9 driver: X:
loaded: amdgpu unloaded: modesetting dri: radeonsi gpu: amdgpu resolution:
1: 1600x900~60Hz 2: N/A
API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
platforms: gbm,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.3.5-arch1.2
renderer: AMD Radeon Vega 11 Graphics (radeonsi raven ACO DRM 3.64
6.18.9-2-cachyos)
API: Vulkan v: 1.4.341 drivers: radv surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info
x11: xdpyinfo, xprop, xrandr
Audio:
Device-1: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP
Audio driver: snd_hda_intel
Device-2: Advanced Micro Devices [AMD] Ryzen HD Audio
driver: snd_hda_intel
Device-3: FIFINE Microphone driver: hid-generic,snd-usb-audio,usbhid
type: USB
API: ALSA v: k6.18.9-2-cachyos status: kernel-api
Server-1: PipeWire v: 1.4.10 status: active
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp5s0 state: down mac: <filter>
Device-2: Realtek RTL88x2bu [AC1200 Techkey] driver: rtw88_8822bu
type: USB
IF: wlan0 state: up mac: <filter>
Drives:
Local Storage: total: 1.14 TiB used: 16.05 GiB (1.4%)
ID-1: /dev/sda vendor: Patriot model: Burst size: 223.57 GiB
ID-2: /dev/sdb vendor: Toshiba model: HDWD110 size: 931.51 GiB
ID-3: /dev/sdc model: N/A size: 14.65 GiB type: USB
Partition:
ID-1: / size: 223.07 GiB used: 16.05 GiB (7.2%) fs: btrfs dev: /dev/sda2
ID-2: /boot/efi size: 511 MiB used: 664 KiB (0.1%) fs: vfat dev: /dev/sda1
ID-3: /home size: 223.07 GiB used: 16.05 GiB (7.2%) fs: btrfs
dev: /dev/sda2
ID-4: /var/log size: 223.07 GiB used: 16.05 GiB (7.2%) fs: btrfs
dev: /dev/sda2
ID-5: /var/tmp size: 223.07 GiB used: 16.05 GiB (7.2%) fs: btrfs
dev: /dev/sda2
Swap:
ID-1: swap-1 type: zram size: 13.58 GiB used: 0 KiB (0.0%) dev: /dev/zram0
Sensors:
System Temperatures: cpu: 49.2 C mobo: N/A gpu: amdgpu temp: 49.0 C
Fan Speeds (rpm): N/A
Info:
Memory: total: 16 GiB note: est. available: 13.58 GiB used: 3.84 GiB (28.3%)
Processes: 346 Uptime: 31m Shell: fish inxi: 3.3.40
Rode yay -S rtl88x2bu-dkms-git e depois reinicie e veja se resolve o problema
Viniosu
Fevereiro 10, 2026, 5:03pm
3
o problema ainda persiste, mesmo depois de utilizar o comando e usando no 2,4ghz
caso precise:
System:
Kernel: 6.18.9-2-cachyos arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.5.5 Distro: CachyOS
Machine:
Type: Desktop Mobo: BIOSTAR model: B450MHP serial: <superuser required>
Firmware: UEFI vendor: American Megatrends LLC. v: 5.17 date: 09/05/2023
CPU:
Info: quad core model: AMD Ryzen 5 3350G with Radeon Vega Graphics bits: 64
type: MT MCP cache: L2: 2 MiB
Speed (MHz): avg: 2947 min/max: 1400/3600 cores: 1: 2947 2: 2947 3: 2947
4: 2947 5: 2947 6: 2947 7: 2947 8: 2947
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Picasso/Raven 2 [Radeon Vega
Series / Radeon Mobile Series] driver: amdgpu v: kernel
Display: x11 server: X.Org v: 21.1.21 with: Xwayland v: 24.1.9 driver: X:
loaded: amdgpu unloaded: modesetting dri: radeonsi gpu: amdgpu resolution:
1: 1600x900~60Hz 2: N/A
API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
platforms: gbm,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.3.5-arch1.2
renderer: AMD Radeon Vega 11 Graphics (radeonsi raven ACO DRM 3.64
6.18.9-2-cachyos)
API: Vulkan v: 1.4.341 drivers: radv surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info
x11: xdpyinfo, xprop, xrandr
Audio:
Device-1: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP
Audio driver: snd_hda_intel
Device-2: Advanced Micro Devices [AMD] Ryzen HD Audio
driver: snd_hda_intel
Device-3: FIFINE Microphone driver: hid-generic,snd-usb-audio,usbhid
type: USB
API: ALSA v: k6.18.9-2-cachyos status: kernel-api
Server-1: PipeWire v: 1.4.10 status: active
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp5s0 state: down mac: <filter>
Device-2: Realtek RTL88x2bu [AC1200 Techkey] driver: rtl88x2bu type: USB
IF: wlan0 state: up mac: <filter>
Drives:
Local Storage: total: 1.14 TiB used: 16.53 GiB (1.4%)
ID-1: /dev/sda vendor: Patriot model: Burst size: 223.57 GiB
ID-2: /dev/sdb vendor: Toshiba model: HDWD110 size: 931.51 GiB
ID-3: /dev/sdc model: N/A size: 14.65 GiB type: USB
Partition:
ID-1: / size: 223.07 GiB used: 16.52 GiB (7.4%) fs: btrfs dev: /dev/sda2
ID-2: /boot/efi size: 511 MiB used: 664 KiB (0.1%) fs: vfat dev: /dev/sda1
ID-3: /home size: 223.07 GiB used: 16.52 GiB (7.4%) fs: btrfs
dev: /dev/sda2
ID-4: /var/log size: 223.07 GiB used: 16.52 GiB (7.4%) fs: btrfs
dev: /dev/sda2
ID-5: /var/tmp size: 223.07 GiB used: 16.52 GiB (7.4%) fs: btrfs
dev: /dev/sda2
Swap:
ID-1: swap-1 type: zram size: 13.58 GiB used: 1.5 MiB (0.0%) dev: /dev/zram0
Sensors:
System Temperatures: cpu: 45.4 C mobo: N/A gpu: amdgpu temp: 45.0 C
Fan Speeds (rpm): N/A
Info:
Memory: total: 16 GiB note: est. available: 13.58 GiB used: 2.62 GiB (19.3%)
Processes: 332 Uptime: 6m Shell: fish inxi: 3.3.40
~
sudo pacman -S --needed base-devel linux-headers dkms git
yay -S rtl88x2bu-dkms-git
Reinicie
E execute o comando abaixo para ver se o modulo esta sendo carregado no boot
lspci -k
Viniosu
Fevereiro 10, 2026, 10:31pm
5
deu este erro (desculpa a demora para responder, estava no curso)
(1/1) instalando linux-headers [--------------------------------] 100%
:: Executando hooks pós-transação...
(1/4) Arming ConditionNeedsUpdate...
(2/4) Updating module dependencies...
(3/4) Install DKMS modules
==> ERROR: Missing 6.18.8-arch2-1 kernel modules tree for module rtl88x2bu/5.13.1.r212.825556e.
(4/4) Performing snapper post snapshots for the following configurations...
==> root: 37
no comando do yay:
AUR Explicit (1): rtl88x2bu-dkms-git-5.13.1.r209.fcf8bf2-1
:: PKGBUILD atualizado, ignorando a transferência: rtl88x2bu-dkms-git
1 rtl88x2bu-dkms-git (Instalado) (Arquivos de Build Existem)
==> Limpar e construir quais pacotes?
==> [N]Nenhum [A]Todos [Ab]Abortar [I]Instalados [No]Não Instalados ou (1 2 3, 1-3, ^4)
Era para funcionar.
Veja o link
Realtek RTL88x2BU WiFi USB Driver for Linux
Pode tentar instalar manualmente.
Ou perguntar no git
Editado
No yay aperte enter para tudo
Viniosu
Fevereiro 10, 2026, 11:32pm
9
acho que consegui instalar usando o DKMS
❯ lsmod | grep 88x2bu
88x2bu 5238784 0
cfg80211 1515520 1 88x2bu
Viniosu
Fevereiro 10, 2026, 11:43pm
11
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
Subsystem: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
Subsystem: Advanced Micro Devices, Inc. [AMD] Device 1453
Kernel driver in use: pcieport
Kernel modules: shpchp
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
Subsystem: Advanced Micro Devices, Inc. [AMD] Device 0000
Kernel driver in use: pcieport
Kernel modules: shpchp
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
Subsystem: Biostar Microtech Int'l Corp Device 370b
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: Biostar Microtech Int'l Corp Device 370b
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
Kernel driver in use: k10temp
Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 xHCI Compliant Host Controller (rev 01)
Subsystem: ASMedia Technology Inc. Device 1142
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
Subsystem: ASMedia Technology Inc. Device 1062
Kernel driver in use: ahci
Kernel modules: ahci
01:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
Subsystem: ASMedia Technology Inc. Device 0201
Kernel driver in use: pcieport
Kernel modules: shpchp
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
02:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
02:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
02:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
02:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
Subsystem: ASMedia Technology Inc. Device 3306
Kernel driver in use: pcieport
Kernel modules: shpchp
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)
Subsystem: Biostar Microtech Int'l Corp Device 2312
Kernel driver in use: r8169
Kernel modules: r8169
09:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c8)
Subsystem: Biostar Microtech Int'l Corp Device 170b
Kernel driver in use: amdgpu
Kernel modules: amdgpu
09:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
09:00.2 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
09:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
Subsystem: Biostar Microtech Int'l Corp Device 370b
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
09:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
Subsystem: Biostar Microtech Int'l Corp Device 370b
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
09:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Ryzen HD Audio Controller
Subsystem: Biostar Microtech Int'l Corp Device 825e
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
Viniosu
Fevereiro 10, 2026, 11:52pm
13
agora pegou
Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp5s0 state: down mac: f4:b5:20:59:2b:69
Device-2: Realtek RTL88x2bu [AC1200 Techkey] driver: rtl88x2bu type: USB
IF: wlan0 state: up mac: fc:22:1c:20:3f:a0
Viniosu
Fevereiro 10, 2026, 11:53pm
15
vou fazer agr, ele conectou normalmente na rede sem eu precisar fazer nada
Ok.
Se resolveu coloque como resolvido.
Clicando no icone quadrado da mensagem Que resolveu
Viniosu
Fevereiro 11, 2026, 12:21am
17
estava pronto para clicara em solução, ja havia sido transferido 7 gb do conteudo, na hora que fui clicar, a internet só caiu, que nem antes
Agora, depois de reiniciar o pc, e abrir o obs para demostrar oque tava acontecendo, o sintoma foi diferente.
Agora o download cai absurdamente, e fica a menos de 1mb/s, que não condiz nem um pouco com a velocidade da internet (500mbps pegando 250-200mbps no 5ghz)
Ok.
Veja isso que está no aur do pacote
i have chinese unbranded one. listed as “Bus 002 Device 002: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]”. and i got the best results with rtw_power_mgnt=0 rtw_switch_usb_mode=1 parameters, using usb3 port, and using iwd+NetworkManager. now performance is better than windows drivers. for permanent use: # echo "blacklist rtw88_8822bu" > /etc/modprobe.d/rtw8822bu.conf # echo "options 88x2bu rtw_power_mgnt=0 rtw_enusbss=0 rtw_ips_mode=0 rtw_ampdu_enable=0 rtw_switch_usb_mode=1" > /etc/modprobe.d/88x2bu.conf
No git
You can try using modprobe 88x2bu rtw_switch_usb_mode=1 to force the adapter to run under USB 3.0. But if your adapter/port/motherboard does not support it, the driver will be stuck in a restart loop. Remove the parameter and reload the driver to restore. Alternatively, modprobe 88x2bu rtw_switch_usb_mode=2 runs it as a USB 2 device.
Notice: If you had already loaded the module, use modprobe -r 88x2bu to unload it first.
If you want to force a given mode permanently (even when switching the adapter across devices), create the file /etc/modprobe.d/99-RTL88x2BU.conf with the following content: options 88x2bu rtw_switch_usb_mode=1
Viniosu
Fevereiro 11, 2026, 12:50am
20
grep . /sys/module/88x2bu/parameters/* | grep -E "usb_mode|power_mgnt|ips_mode|enusbss|ampdu"
/sys/module/88x2bu/parameters/rtw_ampdu_enable:0
/sys/module/88x2bu/parameters/rtw_enusbss:0
/sys/module/88x2bu/parameters/rtw_ips_mode:0
/sys/module/88x2bu/parameters/rtw_power_mgnt:0
/sys/module/88x2bu/parameters/rtw_rx_ampdu_amsdu:0
/sys/module/88x2bu/parameters/rtw_switch_usb_mode:1
pronto, agora vou reiniciar e testar novamente
Apos reiniciar não consigo conectar a rede de jeito algum, o que pode ser
