Use ~/.Xdefaults as a simple way to retheme the xscreensaver lock-screen based on the contents of the files previously noted. etc/skel/.Xdefaults -strip-components=3 & rm '$deb'*.deb Or: deb=xubuntu-default-settings apt download '$deb' & ar x '$deb'*.deb & tar -C $HOME/ -xJf. To use the dark theme, use a command like: (mkdir -p /tmp/xubuntu-default-settings & cd /tmp/xubuntu-default-settings & apt download xubuntu-default-settings & dpkg -x xubuntu-default-settings*.deb. To go back to default, delete ~/.Xdefaults. Test -r '$HOME/.Xresources' & XRESOURCES='$XRESOURCES $HOME/.Xresources' # ~/.Xresources contains overrides to the above Test -r $HOME/.Xdefaults & XRESOURCES='$XRESOURCES $HOME/.Xdefaults' Test -r '/etc/xdg/xfce4/Xft.xrdb' & XRESOURCES='$XRESOURCES /etc/xdg/xfce4/Xft.xrdb' etc/xdg/xfce4/xinitrc loads ~/.Xdefaults with code: # Has to go prior to merging Xft.xrdb, as its the 'Defaults' file Package xubuntu-default-settings contains /etc/skel/.Xdefaults, copied to ~/.Xdefaults during creation of any user account, which contains the ' Black on Black' theme. Package xscreensaver-data contains the default ' White on Black' theme at /etc/X11/app-defaults/XScreenSaver. This also applies to xfce4 installed on top of Ubuntu without the xubuntu-desktop package.

Start the computer, the USB/DVD should boot. You can consult the xscreensaver.ad file for examples, or see the thread on AskUbuntu. Xdefaults, which is mentioned in the manpage. It's a bit easier to use the stock ' White on Black' or ' Black on Black' lock screens in X/Ubuntu 18.04.2 LTS using xfce4. (See note at bottom) Unplug the power cable from the hard drive or unplug the hard drive from the laptop. The short story is you can make some modifications to colors and fonts but beyond that, it will be a bit difficult.

Instalar xscreensaver no lubuntu