My window manager configuration
ln -sf ~/.ratpoison/.ratpoisonrc ~/.ratpoisonrc
ln -sf ~/.ratpoison/.xmodmaprc ~/.xmodmaprc
chmod a+rx .ratpoisonrc .xinitrc .xmodmaprc
If something goes wrong, revert back to defaults.
sudo mv /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.bak
sudo ln -sf ~/.ratpoison/lightdm.conf /etc/lightdm/.
sudo ln -sf ~/.ratpoison/lightdmxrandr.sh /usr/share/.