Code to fix: WindowServer[250]: _CGXGLDisplayContextForDisplayDevice: No matching context for device (0x7fcfcaf18220) - disabling OpenGL I need help implementing the answer to WindowServer[250]: _CGXGLDisplayContextForDisplayDevice: No matching context for device (0x7fcfcaf18220) - disabling OpenGL by inserting the following into wherever it goes:

? [= Sender WindowServer] [= Level Warning] [A= Message _CGXGLDisplayContextForDisplayDevice] claim only


I'm not a coder but I can get to Terminal and past in code and press enter.  That's the extent of my ability.  So, if there's something to do before putting this statement in Terminal I would need to know what, where, and how, etc.  Thank you.
From the original answer:

Type the following into your terminal: sudo nano /etc/asl.conf.
Now, use the arrow key to go to the bottom. When you are at the bottom, paste it the following:

? [= Sender WindowServer] [= Level Warning] [A= Message _CGXGLDisplayContextForDisplayDevice] claim only


(There is nothing special, just command+v).

Now, hit control+x and hit y. Now, type sudo kill -hup syslog.

Sudo means super user grant, so you are giving the command access to all of your machine.