Question: My mouse pointer became invisible after some updates after I upgraded to 15.04 from 14.10. 
In all standard settings the mouse pointer is activated (system settings, dconf...)
I also tried different cursor icons with no success.

The pointer is sometimes visible after I shut down and reboot the system. But only sometimes and I couldn't figure out a patterns why it sometimes shows up.

I found the following solution which did not work

```
gsettings set org.gnome.settings-daemon.plugins.cursor active false

```

Any help appreciated! thanks!

Answer: 
From [this post](http://ubuntuforums.org/showthread.php?t=2252957) on Ubuntu forums, running this command in a terminal fixed this issue

```
gsettings set org.gnome.settings-daemon.plugins.cursor active false

```

This works intermittently for me... and I don't know yet why it works at times and not others, but. may help you too.
Doing this solved the problem for some of the users: install dconf-editor 

`sudo apt-get install dconf-editor`

and change the icon size to smaller in settings.
That seems to solve the issues