Lenovo Thinkpad E480 - Bluetooth not working in Ubuntu 18.04
Solution 1
kernel update to version 4.15.0-34-generic or higher fixed the issue.
I confirm the same with my work environment. Due to other work commitment, I have to use Windows-10 on my laptop (completely wiped out ubuntu for time being) for a while which kept me away from solving this issue, regret replying late.
Solution 2
Ubuntu does not have pre-installed drivers for Realtek Hardware. You were lucky that your wifi worked fine, because I had suffered about almost a month repairing the wifi issues. Now let's solve the realtek problem:
First ensure that you are having Linux kernel > 4.14. To check that, type following on terminal:
uname -msr
If you get something like Linux 4.15, assume everything is fine. And just in case if its not higher than 4.14 (since you are using Ubuntu 18.04, by default the Linux kernel which comes in package is 4.15, so this is for the ones who are still at Ubuntu 16.04), Connect to Ethernet and type following commands:
sudo -s
sudo apt-get dist-upgrade
sudo apt-get upgrade
sudo apt-get update
reboot
This will take time, but have patience. By now you should have linux kernel > 4.14. Now comes the real driver installation part.
Ensure you have installed git. If not type the following command:
sudo apt-get install git
git clone https://github.com/tomaspinho/rtl8821ce.git
cd rtl8821ce/
sudo make all
sudo make install
sudo modprobe -a 8821ce
reboot
This should solve your problem.
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Sunny Shukla
Updated on September 18, 2022Comments
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Sunny Shukla over 1 year
I have recently purchased a Lenovo Thinkpad E480 laptop, I have installed Ubuntu 18.04 on it, everything is working fine except its not able to switch on the Bluetooth. Please help.
I followed this link, but am unable to solve the issue.
Below are the outputs of some commands.
lspci -nnk | grep -iA3 net
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10) Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:506f] Kernel driver in use: r8168 Kernel modules: r8168 05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821] Subsystem: Lenovo RTL8821CE 802.11ac PCIe Wireless Network Adapter [17aa:c024] Kernel driver in use: rtl8821ce Kernel modules: 8821ce 06:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01) rajvi@rbt3105:~$ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 06cb:00a2 Synaptics, Inc. Bus 001 Device 003: ID 13d3:56a6 IMC Networks Bus 001 Device 002: ID 0bda:c024 Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
rfkill list
0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no
uname -r
4.15.0-33-generic
dmesg | egrep -i 'blue|firm'
[ 0.034532] Spectre V2 : Enabling Restricted Speculation for firmware calls [ 0.127509] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 2.488999] usb 1-5: Product: Bluetooth Radio [ 2.688316] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_01.bin (v1.1) [ 4.540443] psmouse serio2: trackpoint: Elan TrackPoint firmware: 0x10, buttons: 3/3 [ 21.991043] RTW: rtl8821c_fw_dl Download Firmware from array success [ 22.619647] Bluetooth: Core ver 2.22 [ 22.619660] Bluetooth: HCI device and connection manager initialized [ 22.619662] Bluetooth: HCI socket layer initialized [ 22.619664] Bluetooth: L2CAP socket layer initialized [ 22.619666] Bluetooth: SCO socket layer initialized [ 22.653194] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is blocked [ 24.796211] Bluetooth: hci0: command 0x1001 tx timeout [ 29.654113] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 29.654114] Bluetooth: BNEP filters: protocol multicast [ 29.654116] Bluetooth: BNEP socket layer initialized [ 32.988224] Bluetooth: hci0: HCI_OP_READ_LOCAL_VERSION failed (-110)
It seems I have to clone, compile and install the required Bluetooth driver, please guide me which Bluetooth driver to use and how to install (with steps if possible).
P.S.: Let me know if any further information is needed to solve this issue, I will add the required info (if any) in the question as per the guidance given.
Edit:
You can see the even though the bluetooth switch is toggle on, it still shows the bluetooth is 'off'.
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Admin over 5 yearsDid you find any solution?
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Admin over 5 years@XavitojCheema Nope. It's still not working.
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Admin over 5 yearsEnabled in BIOS, switched with fn+F5? Does this unix.stackexchange answer help? Short version is does
btattach
fix it. -
Admin over 5 yearsNo it didn't work! I changed the i believe respective ubuntu commands on file
/etc/systemd/system/bluetooth.target.wants/bluetooth.service
and the command was/usr/lib/bluetooth/bluetoothd
. I added the 1s sleep before the command and reboot. I can maybe upload a pic somewhere of what is typical in my case -
Admin over 5 yearsSomehow, I got the kernel update and it's version
4.15.0-34-generic
and everything is working Wifi and Bluetooth, @SunnyShukla Please confirm and close this question. -
Admin over 5 years@XavitojCheema Ubuntu 18.04 latest update fixed the issue? I cannot confirm the same as am on leave as of now.
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Admin over 5 yearsYes the kernel update fixed it.
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Sunny Shukla over 5 yearsthis "askubuntu.com/questions/1070593/…" question of mine solved only wifi adaptor problem, not the Bluetooth problem. If your method has fixed the Bluetooth problem then probably it was due to updating of the Kernel from 4.14 to 4.15. Read the comments in the question itself. I still have to try the solutions because am on leave as of now.
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Sagar Udasi over 5 yearsThe newer your laptop model (i.e. the closer is its release date) more are the problems setting up your drivers in Ubuntu. So for that case- Update kernel to 4.17 and then install this driver. It should work fine.
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Savitoj Cheema over 5 years@SagarUdasi your solution is complete as far as I can see, but I cannot award you the bounty because the issue I faced got solved before you answered and I am not able take bounty down by as per guidelines from stackoverflow. So excuse me for that. :)
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Sagar Udasi over 5 years@XavitojCheema no worries bro... I visit ask ubuntu very rarely. So chances are I am bit late in answering. But anyways, nice to hear that your problem is solved. :)