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#1 2025-12-31 17:32:28

jojoclown
Member
Registered: 2025-12-31
Posts: 2

[solved] wlan0 interface down & bluetooth icon keeps disapearing

Hello.
i can't figure out why the wifi interface decided to no longer work after booting, i've been using this setup with no issue until today, i've also noticed that the bluetooth icon keeps appearing and disapearing on XFCE.

$ systemctl status iwd
● iwd.service - Wireless service
     Loaded: loaded (/usr/lib/systemd/system/iwd.service; disabled; preset: disabled)
     Active: active (running) since Wed 2025-12-31 17:46:35 +01; 36min ago
 Invocation: dfa3b644d76f4cf58fbd2ebeb28c9238
       Docs: man:iwd(8)
             man:iwd.config(5)
             man:iwd.network(5)
             man:iwd.ap(5)
   Main PID: 669 (iwd)
      Tasks: 1 (limit: 9235)
     Memory: 3.3M (peak: 4.7M)
        CPU: 4.263s
     CGroup: /system.slice/iwd.service
             └─669 /usr/lib/iwd/iwd

Dec 31 17:46:38 LinusSexTips iwd[669]:                 VHT Capabilities:
Dec 31 17:46:38 LinusSexTips iwd[669]:                         Short GI for 80Mhz
Dec 31 17:46:38 LinusSexTips iwd[669]:                         Max RX MCS: 0-9 for NSS: 1
Dec 31 17:46:38 LinusSexTips iwd[669]:                         Max TX MCS: 0-9 for NSS: 1
Dec 31 17:46:38 LinusSexTips iwd[669]:         Ciphers: BIP-CMAC-256 BIP-GMAC-256 BIP-GMAC-128 CCMP-256
Dec 31 17:46:38 LinusSexTips iwd[669]:                  GCMP-256 GCMP-128 BIP-CMAC-128 CCMP-128
Dec 31 17:46:38 LinusSexTips iwd[669]:                  TKIP
Dec 31 17:46:38 LinusSexTips iwd[669]:         Supported iftypes: ad-hoc station ap
Dec 31 17:46:42 LinusSexTips iwd[669]: Error bringing interface 4 up: Operation already in progress
Dec 31 17:46:42 LinusSexTips iwd[669]: udev interface=wlan0 ifindex=4
$ sudo dmesg | grep -i bluetooth | tail -n 10
[ 1816.482012] Bluetooth: hci0: RTL: Failed to generate devcoredump
[ 1816.482023] Bluetooth: hci0: Resetting usb device.
[ 1818.721728] Bluetooth: hci0: command 0xfc61 tx timeout
[ 1818.721746] Bluetooth: hci0: RTL: Failed to generate devcoredump
[ 1818.721753] Bluetooth: hci0: Resetting usb device.
[ 1818.721755] Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)
[ 1820.961955] Bluetooth: hci0: command 0xfc61 tx timeout
[ 1820.961971] Bluetooth: hci0: RTL: Failed to generate devcoredump
[ 1820.961976] Bluetooth: hci0: Resetting usb device.
[ 1820.962025] Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)
$ rfkill list
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
814: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
$ lsmod | grep bluetooth
bluetooth            1118208  15 btrtl,btmtk,btintel,btbcm,bnep,btusb
rfkill                 45056  7 hp_wmi,bluetooth,cfg80211
$ journalctl -rb
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0642] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0640] udev rfkill event: action 'change' device 'rfkill940'
Dec 31 18:21:22 LinusSexTips systemd[1]: Reached target Bluetooth Support.
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0629] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0627] udev rfkill event: action 'change' device 'rfkill940'
Dec 31 18:21:22 LinusSexTips systemd[813]: Reached target Bluetooth.
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0606] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:22 LinusSexTips NetworkManager[642]: <debug> [1767201682.0603] udev rfkill event: action 'add' device 'rfkill940'
Dec 31 18:21:21 LinusSexTips kernel: usb 1-10: reset full-speed USB device number 4 using xhci_hcd
Dec 31 18:21:21 LinusSexTips systemd[1]: Stopped target Bluetooth Support.
Dec 31 18:21:21 LinusSexTips systemd[813]: Stopped target Bluetooth.
Dec 31 18:21:21 LinusSexTips NetworkManager[642]: <debug> [1767201681.8205] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:21 LinusSexTips NetworkManager[642]: <debug> [1767201681.8203] udev rfkill event: action 'remove' device 'rfkill939'
Dec 31 18:21:21 LinusSexTips kernel: Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)
Dec 31 18:21:21 LinusSexTips kernel: Bluetooth: hci0: Resetting usb device.
Dec 31 18:21:21 LinusSexTips kernel: Bluetooth: hci0: RTL: Failed to generate devcoredump
Dec 31 18:21:21 LinusSexTips kernel: Bluetooth: hci0: command 0xfc61 tx timeout
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8285] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8282] udev rfkill event: action 'change' device 'rfkill939'
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8255] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8251] udev rfkill event: action 'change' device 'rfkill939'
Dec 31 18:21:19 LinusSexTips systemd[1]: Reached target Bluetooth Support.
Dec 31 18:21:19 LinusSexTips systemd[813]: Reached target Bluetooth.
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8215] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.8211] udev rfkill event: action 'add' device 'rfkill939'
Dec 31 18:21:19 LinusSexTips kernel: usb 1-10: reset full-speed USB device number 4 using xhci_hcd
Dec 31 18:21:19 LinusSexTips systemd[813]: Stopped target Bluetooth.
Dec 31 18:21:19 LinusSexTips systemd[1]: Stopped target Bluetooth Support.
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.5771] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:19 LinusSexTips NetworkManager[642]: <debug> [1767201679.5766] udev rfkill event: action 'remove' device 'rfkill938'
Dec 31 18:21:19 LinusSexTips kernel: Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)
Dec 31 18:21:19 LinusSexTips kernel: Bluetooth: hci0: Resetting usb device.
Dec 31 18:21:19 LinusSexTips kernel: Bluetooth: hci0: RTL: Failed to generate devcoredump
Dec 31 18:21:19 LinusSexTips kernel: Bluetooth: hci0: command 0xfc61 tx timeout
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5868] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5865] udev rfkill event: action 'change' device 'rfkill938'
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5855] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:17 LinusSexTips systemd[1]: Reached target Bluetooth Support.
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5853] udev rfkill event: action 'change' device 'rfkill938'
Dec 31 18:21:17 LinusSexTips systemd[813]: Reached target Bluetooth.
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5830] Wi-Fi rfkill switch rfkill1 state now 1/unblocked
Dec 31 18:21:17 LinusSexTips NetworkManager[642]: <debug> [1767201677.5825] udev rfkill event: action 'add' device 'rfkill938'
Dec 31 18:21:17 LinusSexTips kernel: usb 1-10: reset full-speed USB device number 4 using xhci_hcd

Last edited by jojoclown (2025-12-31 18:48:48)

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#2 2025-12-31 18:01:17

5hridhyan
Member
From: Asia
Registered: 2025-12-25
Posts: 648

Re: [solved] wlan0 interface down & bluetooth icon keeps disapearing

iwd[669]: Error bringing interface 4 up: Operation already in progress

Networkmanager handles wifi so disable iwd or if you want iwd configure NM to use it.

 [ 1818.721746] Bluetooth: hci0: RTL: Failed to generate devcoredump | [ 1818.721753] Bluetooth: hci0: Resetting usb device.

I guess the kernel is restarting the entire USB device when the bluetooth side crashes or times out , for testing disable bluetooth and see if WIFI stabilizes.

Last edited by 5hridhyan (2025-12-31 19:16:05)

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#3 2025-12-31 18:44:36

jojoclown
Member
Registered: 2025-12-31
Posts: 2

Re: [solved] wlan0 interface down & bluetooth icon keeps disapearing

5hridhyan wrote:
iwd[669]: Error bringing interface 4 up: Operation already in progress

Networkmanager handles wifi so disable iwd or if you want iwd configure NM to use it.

already did by following https://wiki.archlinux.org/title/Networ … Fi_backend


The issue seemed to have solved itself after shutting my laptop down for some time then booting it up. I guess its a hardware issue rather than software.

Thanks for the help.

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