lcdscrub(6) XScreenSaver manual lcdscrub(6)

NAME

lcdscrub - attempt to repair burn-in on LCD screens

SYNOPSIS

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

DESCRIPTION

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.

OPTIONS

--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.

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

--root 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.

--fps Display the current frame rate and CPU load.

ENVIRONMENT

DISPLAY to get the default host and display number.

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

XSCREENSAVER_WINDOW
The window ID to use with --root.

SEE ALSO

X(1), xscreensaver(1),
https://support.apple.com/de-at/HT2387
https://web.archive.org/web/20080207220955/http%3A//toastycode.com/blog/2008/02/05/lcd-
scrub/

COPYRIGHT

Copyright (C) 2008 by Jamie Zawinski. Permission to use, copy,
modify, distribute, and sell this software and its documentation for
any purpose is hereby granted without fee, provided that the above
copyright notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting documentation.
No representations are made about the suitability of this software
for any purpose. It is provided "as is" without express or implied
warranty.

AUTHOR

Inspired by the like-named program by Daniel Sandler.

Written by Jamie Zawinski.

X Version 11 6.09 (07-Jun-2024) lcdscrub(6)