No Bluetooth Found Ubuntu 20.04

Question

I have installed Ubuntu 20.04 on a Dell Inspiron 3470 and it does not recognize bluetooth. Hardware specification on Dell's page: 389-BEHN : 802.11bgn + Bluetooth 4.0, 2.4 GHz, 1x1.

When I open the settings it says: No Bluetooth Found. Plug in a dongle to use Bluetooth.

I have tried:

sudo blueman-manager
blueman-manager version 2.1.2 starting
blueman-manager 16.22.15 ERROR    Manager:118 on_dbus_name_appeared: Default adapter not found, trying first available.
blueman-manager 16.22.15 ERROR    Manager:122 on_dbus_name_appeared: No adapter(s) found, exiting

There are no additional drivers available for download.

Additional information:

sudo lshw | grep -A 10 "blue"
               capabilities: bluetooth usb-1.10
               configuration: maxpower=100mA speed=12Mbit/s
       *-usbhost:1
            product: xHCI Host Controller
            vendor: Linux 5.4.0-40-generic xhci-hcd
            physical id: 1
            bus info: usb@2
            logical name: usb2
            version: 5.04
            capabilities: usb-3.10
            configuration: driver=hub slots=8 speed=10000Mbit/s

.

dmesg |egrep -i "blue|fw|firm|hci" 
[    0.000000] [Firmware Bug]: TPM Final Events table missing or invalid
[    0.522136] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.522138] ehci-pci: EHCI PCI platform driver
[    0.522145] ehci-platform: EHCI generic platform driver
[    0.522152] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.522153] ohci-pci: OHCI PCI platform driver
[    0.522159] ohci-platform: OHCI generic platform driver
[    0.522163] uhci_hcd: USB Universal Host Controller Interface driver
[    0.522362] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.522367] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    0.523468] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x110 quirks 0x0000000000009810
[    0.523475] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[    0.523659] usb usb1: Product: xHCI Host Controller
[    0.523660] usb usb1: Manufacturer: Linux 5.4.0-40-generic xhci-hcd
[    0.525174] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.525177] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    0.525178] xhci_hcd 0000:00:14.0: Host supports USB 3.1 Enhanced SuperSpeed
[    0.525206] usb usb2: Product: xHCI Host Controller
[    0.525207] usb usb2: Manufacturer: Linux 5.4.0-40-generic xhci-hcd
[    0.813299] ahci 0000:00:17.0: version 3.0
[    0.827290] ahci 0000:00:17.0: AHCI 0001.0301 32 slots 6 ports 6 Gbps 0xf impl SATA mode
[    0.827291] ahci 0000:00:17.0: flags: 64bit ncq sntf pm clo only pio slum part ems deso sadm sds apst 
[    0.859458] usb 1-5: new full-speed USB device number 2 using xhci_hcd
[    0.864068] scsi host0: ahci
[    0.864329] scsi host1: ahci
[    0.864538] scsi host2: ahci
[    0.864744] scsi host3: ahci
[    0.864851] scsi host4: ahci
[    0.864950] scsi host5: ahci
[    1.139466] usb 1-8: new high-speed USB device number 3 using xhci_hcd
[    1.415443] usb 1-14: new full-speed USB device number 4 using xhci_hcd
[    9.413222] Bluetooth: Core ver 2.22
[    9.413232] Bluetooth: HCI device and connection manager initialized
[    9.413234] Bluetooth: HCI socket layer initialized
[    9.413235] Bluetooth: L2CAP socket layer initialized
[    9.413237] Bluetooth: SCO socket layer initialized
[    9.502605] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[   46.970961] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   46.970964] Bluetooth: BNEP filters: protocol multicast
[   46.970972] Bluetooth: BNEP socket layer initialized
[  191.667475] Lockdown: fwupd: /dev/mem,kmem,port is restricted; see man kernel_lockdown.7

.

dmesg | grep Bluetooth                                                                 ✔ │ 09:50:21   
[    9.413222] Bluetooth: Core ver 2.22
[    9.413232] Bluetooth: HCI device and connection manager initialized
[    9.413234] Bluetooth: HCI socket layer initialized
[    9.413235] Bluetooth: L2CAP socket layer initialized
[    9.413237] Bluetooth: SCO socket layer initialized
[   46.970961] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   46.970964] Bluetooth: BNEP filters: protocol multicast
[   46.970972] Bluetooth: BNEP socket layer initialized

The command bellow returns nothing:

sudo lspci | grep -A 10 "blue"

.

ls /sys/bus/sdio/drivers

Please add the output of sudo lshw | grep -A 10 "blue" to your question. You could also add sudo lspci | grep -A 10 "blue". — zx485, Jul 16 '20 at 19:38
Also please post the output of dmesg |egrep -i "blue|fw|firm|hci" and the output of ls /sys/bus/sdio/drivers Are you sure you actually have bluetooth hardware on the machine? — ubfan1, Jul 16 '20 at 21:39
@ubfan1 question updated with additional information. Yes, I'm sure. It was working on Windows. — Rhonan Carneiro, Jul 17 '20 at 12:18
@Ruby How can I check? I just installed Ubuntu 20.04 and everything on Software & Updates > Additional Drivers (It says No additional drivers available). — Rhonan Carneiro, Jul 17 '20 at 12:40
In the dmesg it posts a message when it loads a firmware for a specific device, like in my dmesg ( meaning when I do sudo dmesg | grep -i blue, read on net what this command does if you do not know about it ), there is one line [ 23.134685] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq, there is no such thing in your output, so probably a missing firmware I think. — Aaryan BHAGAT, Jul 17 '20 at 12:54
You can just do sudo dmesg | less and read the whole stuff to double check it if you want. — Aaryan BHAGAT, Jul 17 '20 at 12:54
@AaryanBHAGAT Do you know how I can fix it? Before coming here I have searched for how Install drivers but I did not have success. — Rhonan Carneiro, Jul 17 '20 at 13:11
@RhonanCarneiro You can manually install the driver by downloading the *.deb* file and installing it with *dpkg -i* command. — Ruby, Jul 17 '20 at 13:37
First you should try the above mentioned approach. If it does not work then
@RhonanCarneiro you should edit your question by stating your laptop version and what bluetooth hardware is in it ( search for net if you are able to find it ), then asking for how to install the required driver. — Aaryan BHAGAT, Jul 17 '20 at 13:48
@AaryanBHAGAT Edited question with hardware specification. Hardware specification on Dell's page: 389-BEHN : 802.11bgn + Bluetooth 4.0, 2.4 GHz, 1x1. — Rhonan Carneiro, Jul 17 '20 at 14:03
@RhonanCarneiro, I have been using Debian for a while now, it is available as firmware non-free package on Debian, I can't give much clue on Ubuntu. — Ruby, Jul 17 '20 at 14:06
@Ruby It fails on the first step because my lsusb | grep Bluetooth returns nothing. — Rhonan Carneiro, Jul 17 '20 at 14:17
@RhonanCarneiro see the 2nd comment of this answer for possible reason of bluetooth not showing in lsusb.
Also for installing bluetooth firmware/drivers see this official ubuntu page. — Aaryan BHAGAT, Jul 17 '20 at 17:11
The link on official ubuntu page talks about old versions... I tried anyway, but it did not solve. As I commented before, this computer has bluetooth, It was working on Windows. — Rhonan Carneiro, Jul 20 '20 at 14:13
I have boot Ubuntu from pendrive (the same used to install it), and the Bluetooth works fine. — Rhonan Carneiro, Aug 04 '20 at 14:34
I have this problem too on ubuntu 18. Sometimes when I restart the computer, bluetooth becomes available. This also applies to wifi. — Gathide, May 06 '21 at 10:49

No Bluetooth Found Ubuntu 20.04

0 Answers0