我是 Ubuntu 新手。我的蓝牙会无休止地搜索设备，但找不到任何设备。dmesg | egrep -i 'blue|firm' 的输出显示：
1.647441] usb 3-4: Product: Bluetooth Radio
[ 2.071071] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 2.093567] Bluetooth: Core ver 2.22
[ 2.093593] NET: Registered PF_BLUETOOTH protocol family
[ 2.093595] Bluetooth: HCI device and connection manager initialized
[ 2.093599] Bluetooth: HCI socket layer initialized
[ 2.093602] Bluetooth: L2CAP socket layer initialized
[ 2.093608] Bluetooth: SCO socket layer initialized
[ 2.120772] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 2.120777] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 2.120780] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 2.668171] [drm] Loading DMUB firmware via PSP: version=0x0101001F
[ 2.668770] [drm] Found VCN firmware Version ENC: 1.16 DEC: 5 VEP: 0 Revision: 3
[ 2.668774] amdgpu 0000:04:00.0: amdgpu: Will use PSP to load VCN firmware
[ 3.480761] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.480764] Bluetooth: BNEP filters: protocol multicast
[ 3.480768] Bluetooth: BNEP socket layer initialized
[ 24.816567] Bluetooth: RFCOMM TTY layer initialized
[ 24.816573] Bluetooth: RFCOMM socket layer initialized
[ 24.816577] Bluetooth: RFCOMM ver 1.11
[ 573.711422] Bluetooth: hci0: Ignoring error of Inquiry Cancel command
[ 648.522053] Bluetooth: hci0: urb 000000007e15b852 failed to resubmit (2)
[ 664.207897] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 664.207904] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 664.207907] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 1375.388305] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 1375.388313] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 1375.388315] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 1603.940851] Bluetooth: hci0: Ignoring error of Inquiry Cancel command
[ 1605.024424] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 1605.024429] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 1605.024430] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 2948.816244] Bluetooth: hci0: Ignoring error of Inquiry Cancel command
[ 2949.900149] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 2949.900155] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 2949.900157] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 3209.141303] Bluetooth: hci0: Ignoring error of Inquiry Cancel command
[ 3210.205750] Bluetooth: hci0: RTL: examining hci_ver=0b hci_rev=000b lmp_ver=0b lmp_subver=8852
[ 3210.205754] Bluetooth: hci0: RTL: unknown IC info, lmp subver 8852, hci rev 000b, hci ver 000b
[ 3210.205756] Bluetooth: hci0: RTL: assuming no firmware upload needed
[ 4705.099710] Bluetooth: hci0: Ignoring error of Inquiry Cancel comman
也许是这一行：
[ 648.522053] Bluetooth: hci0: urb 000000007e15b852 failed to resubmit (2)
我该如何修复它？
答案1
这似乎是内核问题，如果您的内核 >= 5.9，则会发生这种情况，您可以使用它uname -r来检查内核版本。一些相关线程：https://bbs.archlinux.org/viewtopic.php?id=259954
作为 MX master 3S 和 ubuntu22.04 的用户，我使用罗技螺栓接收器和太阳能暂时对其进行自定义。
希望这会有所帮助。