export XCURSOR_DISCOVER=1

Workarounds invisible cursor issue and I think it doesn't hurt even when
that issue isn't encountered.

etc/profile.d/mikaela.sh

@@ -7,3 +7,6 @@ TZ=$(date +%Z)
 
 # Enable numlock
 numlockx on
+
+# Workaround disappearing cursors, probably no harm in any case
+export XCURSOR_DISCOVER=1

rc/profile

@@ -22,6 +22,9 @@ ulimit -c unlimited
 # Numlock on at boot
 numlockx on
 
+# Workaround disappearing cursors, probably no harm in any case
+export XCURSOR_DISCOVER=1
+
 # The environment was set to ~/.environment according to other files...
 if [ -f ~/.environment ]; then
     . ~/.environment

rc/xinitrc

@@ -1,2 +1,3 @@
+export XCURSOR_DISCOVER=1
 [[ -f ~/.Xresources ]] && xrdb -merge -I$HOME ~/.Xresources
 exec mate-session