Pressing ALTGR key makes cursor disappear



I am on Ubuntu 14.04 LTS.
Whenever I press the ALTGR key (known also as right ALT key) the cursor disappears. I have no issues related to the left ALT key.
I found a one year old topic on the same subject but focused on the left ALT key at the following address:

Scrolling down the thread, you would find Erwyn’s solution to the topic’s issue, which as I said is one year old and focusing on the left ALT key, not the right.

Is there anyone else who has the same problem?

What would you suggest to do?

Thanks in advance for your help


Atom has problems with the Right Alt key in general:

I suspect that whatever fix was put in place for the cursor disappearing for the left Alt key needs to be extended to the right Alt key.