Unfortunately, the U2412M is not supported by the DDM (Dell Displays Manager). This was a web mistake on the "What is Dell Display Manager?" article. DDM requires a 2013 or newer Dell model year monitor. Notice that there is not a DDM User's Guide on the U2412M page:
DELL-Chris M
Community Manager
•
56.9K Posts
0
June 3rd, 2016 12:00
Unfortunately, the U2412M is not supported by the DDM (Dell Displays Manager). This was a web mistake on the "What is Dell Display Manager?" article. DDM requires a 2013 or newer Dell model year monitor. Notice that there is not a DDM User's Guide on the U2412M page:

arielalmog
2 Posts
0
June 4th, 2016 00:00
I've just rechecked, and it does appear under U2412M downloads and drivers
I guess that it got into there by mistake
Thanks for the help
Ariel
DELL-Chris M
Community Manager
•
56.9K Posts
0
June 4th, 2016 10:00
Yes. I have asked them to remove it.