XScreenSaver强大的锁屏工具

XScreenSaver is a screen saver and locker for the X Window System.

Installation

Install the xscreensaver package.

For an Arch Linux branded experience, install the xscreensaver-arch-logo^AUR package.

Configuration

Most options are configured on a user-by-user basis by running xscreensaver-demo. xscreensaver-demo writes the chosen configuration to ~/.xscreensaver, discarding any manual modifications to the file. Global options are defined in /usr/share/X11/app-defaults/XScreenSaver.

Since at least XScreenSaver 5.22, there is another way to edit XScreenSaver's user configuration, using Xresources. This includes theming support. See [1] for the version 5.22 defaults.

DPMS and blanking settings

XScreenSaver manages screen blanking and display energy saving (DPMS) independently of X itself and overrides it. To configure the timings for blanking, standby, display poweroff and such, use xscreensaver-demo or edit the configuration file manually, e.g. ~/.xscreensaver:

timeout:	1:00:00
cycle:		0:05:00
lock:		False
lockTimeout:	0:00:00
passwdTimeout:	0:00:30
fade:		True
unfade:		False
fadeSeconds:	0:00:03
fadeTicks:	20
dpmsEnabled:	True
dpmsStandby:	2:00:00
dpmsSuspend:	2:00:00
dpmsOff:	4:00:00

DPMS and screen blanking can be disabled by starting xscreensaver-demo and, for the Mode setting, choosing Disable Screen Saver.

Usage

In the Xfce, LXDE and LXQt environments, XScreenSaver is autostarted automatically if it is available - no further action is required. For other environments, see Autostarting.

To immediately trigger xscreensaver, if it is running, and lock the screen, execute the following command:

$ xscreensaver-command --lock

Lock on suspend

See Power management#xss-lock. You may want to set XScreenSaver's fade out time to 0.

User switching from the lock screen

By default, XScreenSaver's New Login button in the lock screen will call /usr/bin/gdmflexiserver to switch users. Other display managers than GDM or KDM that support user switching (such as LightDM) require a different command.

As modifications in ~/.xscreensaver are discarded by xscreensaver-demo, ~/.Xresources is used in this section.

LXDM

To use LXDM's switching mode:

xscreensaver.newLoginCommand: lxdm -c USER_SWITCH

LightDM

To use LightDM's switching mode:

xscreensaver.newLoginCommand: dm-tool switch-to-greeter

Tips and tricks

Disable during media playback

mplayer/mpv

Add the following to ~/.mplayer/config or ~/.mpv/config:

heartbeat-cmd="xscreensaver-command -deactivate >&- 2>&- &"

Kodi

Kodi has no native support to disable XScreenSaver (it uses its own screensaver). Install the kodi-prevent-xscreensaver^AUR package as a workaround.

Flash

There is no native way to disable XScreenSaver for Flash, but there is script named lightsOn with support for Firefox's Flash plugin, Chromium's Flash plugin, MPlayer, and VLC.

Animated wallpaper

One can run xscreensaver in the background, just like a wallpaper. First, kill any process that is controlling the background (the root window).

Then, locate the desired XScreenSaver executable (typically in /usr/lib/xscreensaver/) and run it with the -root flag, for example:

$ /usr/lib/xscreensaver/glslideshow -root &

$ xwinwrap -b -fs -sp -fs -nf -ov  -- /usr/lib/xscreensaver/glslideshow -root -window-id WID &

Troubleshooting

You can configure xscreensaver to write to a log file by creating the logfile # touch /var/log/xscreensaver.log and then specifying its X resource logFile.

~/.Xresources

xscreensaver.logFile:/var/log/xscreensaver.log

To log verbose debugging information to the logFile as well start xscreensaver with the -verbose command line option, or add this to ~/.Xresources

~/.Xresources

xscreensaver.logFile:/var/log/xscreensaver.log
xscreensaver.verbose:true

See also

• Homepage for XScreenSaver