Dell Latitude 7400 Ubuntu 20.04.2 (with dual-boot)

After an apt upgrade, my laptop froze. Then I manually stopped it and rebooted it.

Now when I boot I find a black screen with the follow errors:

[   4.....] Bluetooth: hci0: command 0xfc09 tx timeout
[  12.....] Bluetooth: hci0: Failed to send firmware data (-110)
[  12.....] Bluetooth: hci0: sending frame failed (-19)

I can log in with ctrl+alt+f2 but don't know what to do then ?

  • The accepted answer does not make any sense. Did you intend to accept your own answer?
    – user68186
    Apr 4, 2021 at 14:44
  • I can tell you that after uninstalling "bluez" i could logged in. Apr 5, 2021 at 17:19
  • 1
    Phrase accept your own answer. This will help others.
    – user68186
    Apr 5, 2021 at 17:21

2 Answers 2


I had to uninstall with:

sudo apt remove --purge --auto-remove bluez
  • I added the way i found as an answer Mar 14, 2021 at 18:10
  • Didn't help on mint 20.2 unfortunately
    – Recct
    Aug 10, 2021 at 10:52

For those concerned, in my case, the error when mount /home partition caused this error.

  • check the error (optional)
tail -n 100 /var/log/boot.log
  • check mounted list (optional)
df -h
  • fix /home partition and then reboot
fsck -t ext4 -r /home

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