How do I turn on the cursor tracker on the ruler?

[Crystian98A2]

I don't now why it no longer shows. But I've looked everywhere to try to reactivate them but can't find anything. 

[c.pfaffenbichler]

Does turning off »Use Graphics Processor« in the Performance Preferences (Photoshop > Preferences > Performance > Graphic Processor Settings) and restarting Photoshop have any bearing on the issue? 

Does turning on »Deactivate Native Canvas« (Photoshop > Preferences > Technology Previews) and restarting Photoshop have any bearing on the issue? 

[c.pfaffenbichler]

Is Photoshop > Preferences > Technology Previews > Enable Native Canvas checked?