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Thread: Bluetooth disappeared after switching from Wifi to Ethernet

  1. #1

    Default Bluetooth disappeared after switching from Wifi to Ethernet

    I have a strange problem. My computer supports Bluetooth and Wifi. I have used them both under OpenSUSE LEAP 15.2. Still, it appears that after switching to Ethernet instead of Wifi both of these technologies have stopped working or at least the system has stopped displaying any information about them. They don't even appear in the normal place in KDE (bottom right).

    I'm stumped on this one. I have no idea why one minute they were both working and the next they were not. I can understand Wifi going away as it is not needed because I am now using Ethernet, but why would Bluetooth go away at the same time? Any help to troubleshoot this issue would be appreciated.

  2. #2
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    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Many WiFi chip sets also have the Bluetooth in them.
    The Intel WiFi module on my Dell 7490 is one with both - if the WiFi is off so is the Bluetooth.
    That may be the reason.

    I use the MATE desktop so my display choices are different from Gnome 3, KDE and Wayland. It is more like Windows XP & Vista - Simpler is better for me.
    Opensuse 15.2 with VirtualBox VM's (XP, 10 & OpenSUSE 15.0)
    Pi4 with Ubuntu MATE 20.04
    Unix since 1974 (pdp-11 in "B" , Interdata 7/32 in "C") (AT&T, Tandy, Convergent, IBM, NCR, HP flavors)
    Linux since 1995 (mandrake, redhat, fedora, centos, now OpenSUSE)

  3. #3
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    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by Nizumzen View Post
    I have a strange problem. My computer supports Bluetooth and Wifi. I have used them both under OpenSUSE LEAP 15.2. Still, it appears that after switching to Ethernet instead of Wifi both of these technologies have stopped working or at least the system has stopped displaying any information about them. They don't even appear in the normal place in KDE (bottom right).

    I'm stumped on this one. I have no idea why one minute they were both working and the next they were not. I can understand Wifi going away as it is not needed because I am now using Ethernet, but why would Bluetooth go away at the same time? Any help to troubleshoot this issue would be appreciated.
    Hi
    Likely soft blocked (Fn+wifi key) they switch cycles through you can check via;

    Code:
    /usr/sbin/rfkill
    ID TYPE      DEVICE      SOFT      HARD
     0 wlan      phy0   unblocked unblocked
     1 bluetooth hci0     blocked unblocked
    You can use rfkill to unblock if Fn key not working.
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  4. #4

    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    have you by accident swiched in YAST - Network - Network Settings - deactivated NetworkManager and switched to one of the other options? And did you configure the network adapter to work as DHCP ?

  5. #5

    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by Nizumzen View Post
    I have a strange problem. My computer supports Bluetooth and Wifi. I have used them both under OpenSUSE LEAP 15.2. Still, it appears that after switching to Ethernet instead of Wifi both of these technologies have stopped working or at least the system has stopped displaying any information about them. They don't even appear in the normal place in KDE (bottom right).

    I'm stumped on this one. I have no idea why one minute they were both working and the next they were not. I can understand Wifi going away as it is not needed because I am now using Ethernet, but why would Bluetooth go away at the same time? Any help to troubleshoot this issue would be appreciated.
    In two systems, I have an AX200 chip which does WiFi and Bluetooth. Turning it off stops both.

    Instead of disabling the adapter, you can configure it not to connect to a network while it remains enabled.
    Of course, this doesn't help with battery-life if you are on a laptop since the combined WiFi and Bluetooth
    chip will still be operating.

    Note that for some reason, I have never managed to make NetworkManager work and am always using
    Wicked which is perfectly fine on all three of my systems. So, the option of not connecting but leaving
    powered on may be there in NetworkManager but I can't be sure.
    - Itai
    https://www.cybernium.net

  6. #6

    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Likely soft blocked (Fn+wifi key) they switch cycles through you can check via;

    Code:
    /usr/sbin/rfkill
    ID TYPE      DEVICE      SOFT      HARD
     0 wlan      phy0   unblocked unblocked
     1 bluetooth hci0     blocked unblocked
    You can use rfkill to unblock if Fn key not working.
    I tried this and Bluetooth isn't listed. I also did this:

    Code:
    dmesg | grep Blue
    and there was no output at all.

  7. #7
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    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by Nizumzen View Post
    I tried this and Bluetooth isn't listed. I also did this:

    Code:
    dmesg | grep Blue
    and there was no output at all.
    This statement only searches for "Blue', nor for "blue". Are you sure it is written eveyuwhere with a capital B? Ia have no idea, but maybe better use
    Code:
    dmesg | grep -i blue
    Henk van Velden

  8. #8

    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by hcvv View Post
    This statement only searches for "Blue', nor for "blue". Are you sure it is written eveyuwhere with a capital B? Ia have no idea, but maybe better use
    Code:
    dmesg | grep -i blue
    Thanks for the tip. But still no output from that command.

  9. #9
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    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by Nizumzen View Post
    Thanks for the tip. But still no output from that command.
    Just to be sure .

    I think then that it is indeed switched off as suggested above by others.
    Henk van Velden

  10. #10
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    Default Re: Bluetooth disappeared after switching from Wifi to Ethernet

    Quote Originally Posted by Nizumzen View Post
    I tried this and Bluetooth isn't listed. I also did this:

    Code:
    dmesg | grep Blue
    and there was no output at all.
    Hi
    What is the status of bluetooth;

    Code:
    systemctl status bluetooth
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

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