DISPLAY
to get the default host and display number.
Make a screen meltdown.
decayscreen [--display
host:display.screen]
[--window]
[--root]
[--window-id
number]
[--mono]
[--install]
[--visual
visual]
[--delay
usecs]
[--duration
secs]
[--mode
mode]
[--fps]
The decayscreen program creates a melting effect by randomly shifting rectangles around the screen.
The image that it manipulates will be grabbed from the portion of the screen underlying the window, or from the system's video input, or from a random file on disk, as indicated by the grabDesktopImages, grabVideoFrames, and chooseRandomImages options in the ~/.xscreensaver file; see xscreensaver-settings(1) for more details.
decayscreen accepts the following options:
--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.
--mono
If on a color display, pretend we're on a monochrome display.
--install
Install a private colormap for the window.
--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.
--delay microseconds
Slow it down.
--duration seconds
How long to run before loading a new image. Default 120 seconds.
--mode mode
The direction in which the image should tend to slide. Legal values are random (meaning pick one), up, left, right, down, upleft, downleft, upright, downright, shuffle (meaning prefer no particular direction), in (meaning move things toward the center), out (meaning move things away from the center), melt (meaning melt straight downward), stretch (meaning stretch the screen downward), and fuzz (meaning go blurry instead of melty).
--fps
Display the current frame rate and CPU load.
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.
11 releases since Debian 3.1 (Sarge); the text changed 10 times.
--delay since Debian 12 (Bookworm);
--duration since Debian 12 (Bookworm);
--fps since Debian 12 (Bookworm);
--install since Debian 12 (Bookworm);
--mode since Debian 12 (Bookworm);
--mono since Debian 12 (Bookworm);
--root since Debian 12 (Bookworm);
--visual since Debian 12 (Bookworm);
--window since Debian 12 (Bookworm);
--window-id since Debian 12 (Bookworm).
-delay until Debian 11 (Bullseye);
-duration until Debian 11 (Bullseye);
-fps until Debian 11 (Bullseye);
-install until Debian 11 (Bullseye);
-mode until Debian 11 (Bullseye);
-mono until Debian 11 (Bullseye);
-root until Debian 11 (Bullseye);
-visual until Debian 11 (Bullseye);
-window until Debian 11 (Bullseye).