Desktop picture not filling screen on user switch

[Simon Linton]

I've just got a new iMac and operating system (Mavericks 10.9.5 "updated" from the pre-installed Yosemite and I am regularly switching between my wife's login section and my own.
When I switch, the desktop background (Mac installed picture) does not fill the screen and the dock also sits at the bottom of the smaller picture.
Icons on the desktop do remain where I put them on the grey background.

Eventually, the dock fills the screen and if I switch back to the login screen and then back to me, the picture covers the whole desktop.

It's not critical, but it's damn irritating! Any fixes out there?

 

[Cory Cooper]

Hello and welcome.

The desktop picture is customizable per user on a Mac. The resolution of the display is machine-wide.

-Have you tried changing the settings in  > System Preferences... > Desktop & Screen Saver, Display, and Dock?

C

 

[Simon Linton]

Dear C

Did that, no result.

 

[Cory Cooper]

OK.

Try resetting the PRAM/NVRAM of the Mac:

How to Reset NVRAM on your Mac

And, repairing disk permissions:

-Applications > Utilities > Disk Utility
-Click once on Macintosh HD in list on left
-Click Repair Disk Permissions button
-Restart when it is complete

Let us know if those help the issue.

C

 

[Simon Linton]

No that didn't work either.

 

[Cory Cooper]

OK...thanks for trying.

Maybe we could get you to take/post photos of the two different users, so we know exactly what we are dealing with?

Let us know if that is possible and/or of you need assistance.

C