Hi, I've partially solved the problem, using the update-alternatives. sudo update-alternatives --config x-cursor-theme
In this way the default cursor is changed, including the cursor of the logon screen. I think It helps to find the problem, since it is located at the 'System > Preferences > Appearance > Customize > Pointer'. The only way to change the cursor theme is define it as default. Thank you for working to improve the Debian GNU/Linux. -- Guilherme Salazar
