Two screens issue

[Graham]

I have used two screens for 10+ years and two days ago they stopped displaying as a single display but more as two independent displays. For example they both have the Apple tool bar displayed at the top. If I drag a document from the main monitor to the second monitor it cannot be view on both.... just on one montitor until it is complete moved to the second monitor.
Main Monitor

Second Monitor

 

[DaveS]

Have a look at this article to see if it helps at all: https://support.apple.com/en-ca/HT202351

 

[Graham]

Have a look at this article to see if it helps at all: https://support.apple.com/en-ca/HT202351

Thanks Dave....
I spent 2 hours on with Apple Techy ..... I was happening to their monitors. Never got solution.
Wierd and very bothersome especially when one is working on a 30 page Newsletter. Grrrrrrrrrrrr
Sure hope some else has a fix.

 

[chas_m]

Try steps 3 and onward from this article: https://www.techwalla.com/articles/how-to-set-the-display-on-a-macbook-to-mirror

 

[Graham]

Thanks Charles.... Going through step 3 to 6 did not fix the issue. Clicking on step 6 "Click the red button in the upper left corner to close the window." did not fix having two screen with the white (and active) menu along the top of the window. Start and restart did not result in a cure.

 

[chas_m]

Try this: https://www.mactrast.com/2013/10/disable-second-menu-bar-os-x-mavericks/

 

[Graham]

Thanks Charles.... Mission control was set up as per the mactrast.com site....
I solved the issue by setting the preferences in "Display" by unchecking "Show mirroring...... " Now I have an extended desktop.

I can't recall ever changing this setting .... but then sometimes I can't remember breakfast !!!!!!!