bluetooth not working linux 7.1.3

Yoruu_. · 2026-07-19 17:35:10

hello this is my first time trying arch linux and everything seems fine , but when i tried to connect my bluetooth dongle it refused to connect
i have been searching all over the web and tried a few patches but nothing works sadly
now i'm out of options and i hope there is a solution
rfkill was soft blocked and i unblocked

sudo btmon output

 Bluetooth monitor ver 5.87
btmon[27732]: = Note: Linux version 7.1.3-arch2-1 (x86_64)                                                                                  0.711315
btmon[27732]: = Note: Bluetooth subsystem version 2.22                                                                                      0.711319
= New Index: 33:03:30:0C:34:0B (Primary,USB,hci0)                                                                                    [hci0] 0.711321
bluetoothd[327]: @ MGMT Open: bluetoothd (privileged) version 1.23                                                                 {0x0001} 0.711322

hciconfig

 hci0:	Type: Primary  Bus: USB
	BD Address: 33:03:30:0C:34:0B  ACL MTU: 360:4  SCO MTU: 0:0
	DOWN 
	RX bytes:478 acl:0 sco:0 events:17 errors:0
	TX bytes:299 acl:0 sco:0 commands:18 errors:0

sudo hciconfig hci0 up

 Can't init device hci0: Connection timed out (110)

sudo dmesg | grep -iE 'bluetooth' (a freind of mine told me to add this)

[   20.145508] Bluetooth: Core ver 2.22
[   20.145549] NET: Registered PF_BLUETOOTH protocol family
[   20.145551] Bluetooth: HCI device and connection manager initialized
[   20.145558] Bluetooth: HCI socket layer initialized
[   20.145561] Bluetooth: L2CAP socket layer initialized
[   20.145567] Bluetooth: SCO socket layer initialized
[   20.484570] Bluetooth: hci0: CSR: Setting up dongle with HCI ver=6 rev=0709
[   20.484581] Bluetooth: hci0: LMP ver=6 subver=0709; manufacturer=10
[   20.484585] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[   20.719433] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   20.719441] Bluetooth: BNEP filters: protocol multicast
[   20.719448] Bluetooth: BNEP socket layer initialized
[   20.760613] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[   20.760622] Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
[   20.760624] Bluetooth: hci0: HCI Set Event Filter command not supported.
[   22.849076] Bluetooth: hci0: Opcode 0x2003 failed: -110
[   22.849076] Bluetooth: hci0: command 0x2003 tx timeout
[  154.262020] Bluetooth: hci0: CSR: Local version failed (-4)
[  154.262029] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[  154.262031] Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
[  154.262033] Bluetooth: hci0: HCI Set Event Filter command not supported.
[ 6407.020529] Bluetooth: hci0: CSR: Setting up dongle with HCI ver=6 rev=0709
[ 6407.020538] Bluetooth: hci0: LMP ver=6 subver=0709; manufacturer=10
[ 6407.020541] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 6407.020548] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 6407.020551] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[ 6407.020554] Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
[ 6407.020556] Bluetooth: hci0: HCI Set Event Filter command not supported.
[ 6409.089103] Bluetooth: hci0: command 0x2003 tx timeout
[ 6409.089142] Bluetooth: hci0: Opcode 0x2003 failed: -110
[ 6797.860672] Bluetooth: hci0: CSR: Setting up dongle with HCI ver=6 rev=0709
[ 6797.860684] Bluetooth: hci0: LMP ver=6 subver=0709; manufacturer=10
[ 6797.860687] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 6797.860697] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 6797.860701] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[ 6797.860703] Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
[ 6797.860705] Bluetooth: hci0: HCI Set Event Filter command not supported.
[ 6799.937106] Bluetooth: hci0: command 0x2003 tx timeout
[ 6799.937106] Bluetooth: hci0: Opcode 0x2003 failed: -110

uname -a

Linux archlinux 7.1.3-arch2-1 #1 SMP PREEMPT_DYNAMIC Tue, 14 Jul 2026 23:03:30 +0000 x86_64 GNU/Linux

amd a6-5400B apu integrated graphics
10gb ddr 3 ram across 4 sticks

edit : i forgot to mention that the bluetooth dongle doesn't work on lts too

Last edited by Yoruu_. (2026-07-19 17:36:56)

Yoruu_. · 2026-07-19 17:38:23

sorry to whoever reads this post this is the first time i post someting on the internet

Yoruu_. · 2026-07-20 10:57:19

so nobody going to help?
atleast tell me why

seth · 2026-07-20 12:42:23

https://wiki.archlinux.org/title/Genera … es#Bumping

this is the first time i post someting on the internet

This part of TheInternet™ is an asynchronous forum with a global audioence.

People will respond when
* they are awake and ideally not drunk
* they have free time
* they have any idea about the topic

i tried to connect my bluetooth dongle it refused to connect

[ 6797.860687] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 6797.860697] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 6797.860701] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[ 6797.860703] Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
[ 6797.860705] Bluetooth: hci0: HCI Set Event Filter command not supported.
[ 6799.937106] Bluetooth: hci0: command 0x2003 tx timeout
[ 6799.937106] Bluetooth: hci0: Opcode 0x2003 failed: -110

We'll have to figure
* what device that actually is
* what else might be wrong on the bus

Please post your complete system journal for the boot after trying to pair some BT device

sudo journalctl -b | curl -s -H "Accept: application/json, */*" --upload-file - 'https://paste.c-net.org/'

and also

lsusb -tv

Does the dongle show up in

rfkill

?

Yoruu_. · 2026-07-20 13:49:47

it shows in rfkill , when i boot the pc its always soft blocked so i unblocked it

you asked for this

 [Yoruu@archlinux ~]$ sudo journalctl -b | curl -s -H "Accept: application/json, */*" --upload-file - 'https://paste.c-net.org/'
{"link":"NotchesThose","url":"https://paste.c-net.org/NotchesThose","delete_key":"gHcmziEU2yhhtNmb"}

also this

 [Yoruu@archlinux ~]$ lsusb -tv
/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=ohci-pci/5p, 12M
    ID 1d6b:0001 Linux Foundation 1.1 root hub
    |__ Port 002: Dev 002, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        ID 04b3:3025 IBM Corp. NetVista Full Width Keyboard
/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=ohci-pci/5p, 12M
    ID 1d6b:0001 Linux Foundation 1.1 root hub
    |__ Port 004: Dev 004, If 0, Class=Wireless, Driver=btusb, 12M
        ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
    |__ Port 004: Dev 004, If 1, Class=Wireless, Driver=btusb, 12M
        ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
    |__ Port 005: Dev 003, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        ID 10c4:0005 Silicon Labs 
/:  Bus 003.Port 001: Dev 001, Class=root_hub, Driver=ehci-pci/5p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 004.Port 001: Dev 001, Class=root_hub, Driver=ehci-pci/5p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 005.Port 001: Dev 001, Class=root_hub, Driver=ohci-pci/2p, 12M
    ID 1d6b:0001 Linux Foundation 1.1 root hub
/:  Bus 006.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 007.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 5000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
/:  Bus 008.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
/:  Bus 009.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 5000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub

also sorry about the impatiance

seth · 2026-07-20 14:12:51

Jul 20 14:29:44 archlinux kernel: Bluetooth: hci0: Opcode 0x2003 failed: -110
…
Jul 20 15:56:48 archlinux sudo[14942]:    Yoruu : TTY=pts/0 ; PWD=/home/Yoruu/csr8510-fix ; USER=root ; COMMAND=./install.sh
…
Jul 20 15:58:03 archlinux kernel: btusb: module verification failed: signature and/or required key missing - tainting kernel
…
Jul 20 15:58:08 archlinux kernel: Bluetooth: hci0: command 0x2003 tx timeout
Jul 20 15:58:08 archlinux kernel: Bluetooth: hci0: Resetting usb device.
Jul 20 15:58:08 archlinux kernel: Bluetooth: hci0: Opcode 0x2003 failed: -110
Jul 20 15:58:08 archlinux systemd[404]: Stopped target Bluetooth.
Jul 20 15:58:08 archlinux systemd[1]: Stopped target Bluetooth Support.
Jul 20 15:58:08 archlinux kernel: usb 2-4: reset full-speed USB device number 2 using ohci-pci
…
Jul 20 15:58:36 archlinux kernel: Bluetooth: hci0: CSR: after force_suspend: ret=0 enabled=0 suspended=1 usage=0 child=0 nrw=1 wakeup_capable=1
Jul 20 15:58:36 archlinux (udev-worker)[16147]: 2-4: Process '/usr/bin/usb_modeswitch -v 0a12 -p 0001 --unconfigured' failed with exit code 1.
Jul 20 15:58:36 archlinux (udev-worker)[16147]: 2-4:1.0: Process '/usr/bin/usb_modeswitch -v 0a12 -p 0001 --unconfigured' failed with exit code 1.
Jul 20 15:58:36 archlinux (udev-worker)[16149]: 2-4:1.1: Process '/usr/bin/usb_modeswitch -v 0a12 -p 0001 --unconfigured' failed with exit code 1.
Jul 20 15:58:36 archlinux systemd[1]: Reached target Bluetooth Support.

https://www.reddit.com/r/linux/comments … ne_dongle/
https://github.com/hhsnake/csr8510-fix

Do you have https://archlinux.org/packages/extra/x8 … odeswitch/ and also did you re-plug the dongle after installing the patched driver (keep it unplugged for some seconds)

Yoruu_. · 2026-07-20 15:38:08

both links you sent me i actually checked yesterday night
and yes i kept it unplugged for 30 seconds
and yes i have usb_modeswitch

this is the journalctl after patch

 [Yoruu@archlinux csr8510-fix]$ journalctl -kf | grep -i -e bluetooth -e csr
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: before allow: ret=0 enabled=1 suspended=0 usage=1 child=1 nrw=1 wakeup_capable=1
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: after allow: ret=0 enabled=1 suspended=0 usage=0 child=1 nrw=1 wakeup_capable=1
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: pre-suspend: ret=0 enabled=1 suspended=0 usage=0 child=1 nrw=1 wakeup_capable=1
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: skipping force_suspend while child_count=1 after reset/rebind
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: skip force_suspend: ret=0 enabled=1 suspended=0 usage=0 child=1 nrw=1 wakeup_capable=1
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: CSR: after forbid: ret=0 enabled=1 suspended=0 usage=1 child=1 nrw=1 wakeup_capable=1
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: HCI Read Default Erroneous Data Reporting command is advertised, but not supported.
Jul 20 18:34:50 archlinux kernel: Bluetooth: hci0: HCI Set Event Filter command not supported.
Jul 20 18:34:52 archlinux kernel: Bluetooth: hci0: Opcode 0x2003 failed: -110

topcat01 · 2026-07-20 17:02:04

This might be a goosechase, but I wonder if the patched driver works with the LTS kernel.

Yoruu_. · 2026-07-20 17:46:34

sadly i tried lts and nope
both no

topcat01 · 2026-07-20 18:26:52

Maybe it's time to contact the developer of the patch.

seth · 2026-07-20 19:42:48

both links you sent me i actually checked yesterday night

I figured (at least for the linked patch) - it was just for reference about what's going on on your system.

this is the journalctl after patch

Acutally it's a filter - do you still get the modeswitch errors?

Since this is a dongle and radio draws quite some power:

/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=ohci-pci/5p, 12M
    ID 1d6b:0001 Linux Foundation 1.1 root hub
    |__ Port 004: Dev 004, If 0, Class=Wireless, Driver=btusb, 12M
        ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

Does it work if you plug it into the USB 3 hub?

Yoruu_. · Yesterday 10:27:02

sadly not working on USB 3 hub too

Yoruu_. · Yesterday 13:18:27

i'm sad to announce that i tried to use sudo pacman -Syu again
kernal updated hyprland broke
something about libhyprutils.so.12 not found i think
tried reinstalling hyprland to no avail
any suggestions currently i will not be able to test since i'm locked out of arch (currently on windows)

seth · Yesterday 14:59:08

pacman -Qs hypr

currently on windows

3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.

Edit: this is relevant since radio is the primary victim of this condition, though in theory I'd expect re-attaching the dongle to clear the state but who knows…

Last edited by seth (Yesterday 15:00:31)

Yoruu_. · Yesterday 16:03:57

dear seth ,fast startup was off for 4 years , as as said my pc is old as shit and used to crash alot in the past, and having fast startup enabled bricked it 2/4 times cuz the pc lost power
and as i said , i cannot get into linux currently as hyprland refuses to start after i updated to linux 7.1.4
and before u say the lts version sir that updated too and also has issues with hyprland
file missing is libhyprutils.so.12

seth · Yesterday 16:06:51

i cannot get into linux currently as hyprland refuses to start after i updated

What does hyprland have to do w/ "get into linux"?
=> 2nd link below

Yoruu_. · Today 11:46:50

nothing i just forgot i can use ctrl+alt+f4
doesn't matter
anyway , as i said its not fast sturtup problems from windows i have that disabled long ago

seth · Today 11:58:37

seth wrote:

pacman -Qs hypr

and the actual hyprland error you get might be relevant.
(The 2nd link below actually just shows how to boot the multi-user.target)

About fast-start: since windows keeps enabling it w/ updates, have you recently check that it's *still* disabled?

Yoruu_. · Today 13:47:03

i wish it was hyprland was relevent but the error was just a missing utils file due to update (i forgot i installed it usin cmake meaning i had to recompile it all after update )

error while loading shared libraries: libhyprutils.so.12: cannot open shared object file: No such file or directory

as for windows i'm using windows 10 (pc can't handle 11 ) , which didn't have an upgrade for a long time , i will check again regardless
oh yeah and about the 2nd link i read that

Last edited by Yoruu_. (Today 13:48:11)

seth · Today 14:21:32

i forgot i installed it usin cmake meaning i had to recompile it all after update

So is that situation now sorted out?

seth wrote:

do you still get the modeswitch errors?

Resp. post a complete system journal to illustrate the new status quo.

Arch Linux

#1 2026-07-19 17:35:10

bluetooth not working linux 7.1.3

#2 2026-07-19 17:38:23

Re: bluetooth not working linux 7.1.3

#3 2026-07-20 10:57:19

Re: bluetooth not working linux 7.1.3

#4 2026-07-20 12:42:23

Re: bluetooth not working linux 7.1.3

#5 2026-07-20 13:49:47

Re: bluetooth not working linux 7.1.3

#6 2026-07-20 14:12:51

Re: bluetooth not working linux 7.1.3

#7 2026-07-20 15:38:08

Re: bluetooth not working linux 7.1.3

#8 2026-07-20 17:02:04

Re: bluetooth not working linux 7.1.3

#9 2026-07-20 17:46:34

Re: bluetooth not working linux 7.1.3

#10 2026-07-20 18:26:52

Re: bluetooth not working linux 7.1.3

#11 2026-07-20 19:42:48

Re: bluetooth not working linux 7.1.3

#12 Yesterday 10:27:02

Re: bluetooth not working linux 7.1.3

#13 Yesterday 13:18:27

Re: bluetooth not working linux 7.1.3

#14 Yesterday 14:59:08

Re: bluetooth not working linux 7.1.3

#15 Yesterday 16:03:57

Re: bluetooth not working linux 7.1.3

#16 Yesterday 16:06:51

Re: bluetooth not working linux 7.1.3

#17 Today 11:46:50

Re: bluetooth not working linux 7.1.3

#18 Today 11:58:37

Re: bluetooth not working linux 7.1.3

#19 Today 13:47:03

Re: bluetooth not working linux 7.1.3

#20 Today 14:21:32

Re: bluetooth not working linux 7.1.3

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