I am trying to access my centos machine through VNC viewer after sucessfull login its showing blue screen with one clock ,Just for your reference see below image

enter image description here

Not sure what wrong with the setup. Can someone please help me ?

  • It looks as if you have only started xclock and nothing else. What other programs were expecting to show up?
    – Kusalananda
    Commented Mar 26, 2021 at 13:23
  • Looks like twm. Can you right click on the desktop? Also, X as root is a bad idea.
    – jsbillings
    Commented Mar 27, 2021 at 15:47
  • Right click not giving any menu option.
    – subodh
    Commented Mar 30, 2021 at 3:44
  • @Kusalananda No i didnt start any program .
    – subodh
    Commented Mar 30, 2021 at 3:48

1 Answer 1


install below package and restart VNC services

yum install gnome* --exclude=gnome-session-wayland-session
  • It would be helpful to add a sentence or two to describe that the user is seeing a bare-bones X11 session with no desktop environment or window manager at all, which is very minimal to the point of being unusable.
    – telcoM
    Commented Jun 7, 2021 at 9:57
  • I have symptoms like half-cut firefox windows and a cursor shows "X". turns out I deleted gnome somehow. Thanks. Commented Jul 22, 2023 at 14:17

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