Framebuffer on virtual desktops

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  • #7229
    javier.lopez
    Participant

    Hello,

    We’re using NoMachine Small Business Server Subscription – Version 4.4.12 with Gnome desktop on Debian Wheezy. The machine is a headless EC2 instance.

    Each user connects to its individual virtual desktop and this is working without problems, however we’ve observed a few issues with the video playback on the virtual desktops. These issues doesn’t happen if we connect directly to the “Device display”, unfortunately we cannot connect to the device display because multiple users need to have simultaneous access to their desktop.

    On Mplayer, the application doesn’t start and complains about missing framebuffer device.

    On VLC, the video doesn’t show (we can hear the sound). We were able to overcome the issue by disabling the “Accelerated video output (overlay)”.

    Could it be possible to create virtual framebuffer such as Xvfb per each virtual desktop? Any ideas?

     

    Cheers,

     

     

     

    #7250
    graywolf
    Moderator

    @javier

    virtual desktops alredy use virtual display servers, so there is no need to run another one like Xvfb.

    You found VLC and Mplayer work fine in the physical display. But this EC2 is a virutal machine, so I guess you followed the article https://www.nomachine.com/AR10K00710    or you installed any kind of virtual X server to emualte that physical display. Could you tell me which is the procedure you followed?

    Could you provide the output of command “xdpyinfo” for such physical display on EC2 machine?

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