This adds an advice around evil stuff to drop it to _ register.
(defun meain/evil-delete-advice (orig-fn beg end &optional type _ &rest args)
"Make d, c, x to not write to clipboard."
(apply orig-fn beg end type ?_ args))
(advice-add 'evil-delete :around 'meain/evil-delete-advice)
(advice-add 'evil-change :around 'meain/evil-delete-...
As the message says:
Saving clipboard to x clipboard manager...
Try emacs -Q and copy then close emacs, you get this message:
Error saving to X clipboard manager.
If the problem persists, set 'x-select-enable-clipboard-manager' to nil.
So add (setq x-select-enable-clipboard-manager nil) to your .emacs file