Screen resolution issue with EC2 RHEL 7.3

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  • #15433
    jyork13
    Participant

    Hello,

    Let me preface by saying I’m new to both NoMachine and AWS EC-2 Linux.  I am connecting to an ec-2 instance running NoMachine from a Windows 8.1 Remote Desktop Client.

    If I launch NoMachine session alone, I get max resolution of 1280 x 1024.  However, if launch RDP from Windows connecting to XRDP, I get max 1920 x 1200 (matches client essentially).

    If I remain logged in and disconnect RDP, then launch NoMachine I get the full 1920 x 1200.

    I assume this has something to do with a virtual display driver but perplexed as to why it works when I leave an XRDP session open.

    Anyone know how to resolve?

    #15440
    graywolf
    Moderator

    If you want to match your client resolution, I think the best way would be this: run the NoMachine client, go full screen, connect to the server and check “Change the server resolution to match the client when I connect”.

    If that doesn’t work, it is possible that NoMachine is connecting to the “physical” screen of the AWS machine where available resolutions are pre-determined. In that case could be helpful turning the GUI display off on AWS. If graphical display is off NoMachine will launch a virtual display that is more flexible about screen resolutions:

    (for Ubuntu 16.04)
    sudo systemctl set-default multi-user.target
    sudo systemctl stop lightdm.service

    #15487
    jyork13
    Participant

    Thanks graywolf, I’ll give that a try.

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