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Thread: KVM - Error connecting to graphical console (SpiceClientGtk)

  1. #1
    Join Date
    Apr 2011
    Beans
    127
    Distro
    Ubuntu

    KVM - Error connecting to graphical console (SpiceClientGtk)

    Hi All,

    I have a new install of Ubuntu Server 20.04.2 LTS setup and running KVM.

    Everything *seems* to be fine with the server.

    I have then installed 'virt-manager' on my Ubuntu 18.04 LTS Desktop machine, and successfully connected to the KVM Server.

    I have tried to create a new VM (Debian Stretch) from the Virtual Machine Manager (virt-manager), but each time I am getting the same issue which is that I cannot see the VM Console.


    The error I am getting is:
    Error connecting to graphical console:
    Error opening Spice console, SpiceClientGtk missing
    I have checked that 'SpiceClientGtk' is installed on the Ubuntu Server by entering:

    Code:
    sudo apt install gir1.2-spiceclientgtk-3.0 --dry-run
    which returns:

    Code:
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    gir1.2-spiceclientgtk-3.0 is already the newest version (0.37-2fakesync1).
    gir1.2-spiceclientgtk-3.0 set to manually installed.
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded
    so I believe that is correctly installed. For what it was worth, I also installed it on my Desktop, but that made no difference either.



    I also tried connecting using 'virt-viewer'.

    I entered this on my desktop:

    Code:
    virt-viewer --connect qemu+ssh://username@172.25.25.3/system VMName
    I don't have keys setup (yet) so I am expecting to get asked for the password, which I am (a number of times, but apparently that is expected). The 'virt-viewer' application opens, and sits with the message:

    Connected to graphic server

    The VM is definitely running (at least according to the host):

    Code:
    $ virsh list
    
     Id   Name         State
    ----------------------------------------
     1    VMName   running

    Any suggestions on what to try or do next?

    Thanks,

    Alan.
    Last edited by Alan5127; March 9th, 2021 at 11:56 AM. Reason: Tidy up formatting

  2. #2
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
    Beans
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    Distro
    Ubuntu

    Re: KVM - Error connecting to graphical console (SpiceClientGtk)

    Setup ssh-keys already.

    On the client system:
    Code:
    ssh-keygen -t ed25519
    ssh-copy-id -i ~/.ssh/id_ed25519.pub userid@remote
    That's it.

    Verify the keys are working:
    Code:
    ssh userid@remote
    On the client machine, you must have virt-manager and spice-client-...... (really long package name) installed and your userid should be in the libvirtd group on the KVM server.
    There are other settings inside the VM that are needed, but I think the defaults are for SPICE to be used since 18.04. You can change that to VNC or VMVGA, if you like in the VM settings. On a non-desktop, SPICE isn't exactly useful. Heck, on a non-desktop, just use ssh directly. That is much more efficient.
    Until today, I never tried to connect to a server using spice. It never made any sense to try.

  3. #3
    Join Date
    Apr 2011
    Beans
    127
    Distro
    Ubuntu

    Re: KVM - Error connecting to graphical console (SpiceClientGtk)

    Hi TheFu,

    Adding the SSH keys fixed the problem.

    No idea why - I appreciate it is more convenient, but not sure why it works that way, and not by typing the password, but regardless, it is working now.T

    Thanks!

    Alan.

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