lcdscrub - Man Page

attempt to repair burn-in on LCD screens


lcdscrub [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--delay number] [--spread number] [--cycles number] [--fps]


This screen saver is not meant to look pretty, but rather, to repair burn-in on LCD monitors.

Believe it or not, screen burn is not a thing of the past. It can happen to LCD screens pretty easily, even in this modern age. However, leaving the screen on and displaying high contrast images can often repair the damage.  That's what this screen saver does.


--visual visual

Specify which visual to use.  Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.


Draw on a newly-created window.  This is the default.


Draw on the root window.

--window-id number

Draw on the specified window.

--delay number

Per-frame delay, in microseconds.  Default: 1000000 (1 second.).

--spread number

Distance between lines.  Default 8.

--cycles number

Steps before switching display mode.  Default 60.


Display the current frame rate and CPU load.



to get the default host and display number.


to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.


The window ID to use with --root.

See Also

X(1), xscreensaver(1),


Inspired by the like-named program by Daniel Sandler.

Written by Jamie Zawinski.


6.08-2.fc40 (27-Jan-2024) X Version 11 XScreenSaver manual