Time Machine Bug In Mavericks with Secondary Monitor - How to Fix It

| How-To

Time Machine BugThere is a known issue with Time Machine where a backup will show, but cannot be selected while using a secondary monitor. It still exists in 10.9.2, but fortunately we have a few suggestions for how to fix it listed below.

My first suggestion is unplugging the second monitor, launching Time Machine and restoring the file, then plugging the monitor back in. This is not necessarily the nicest solution, but it does save having to log out and back in after making changes.

Other ways to resolve this involve changing monitor settings. First, try switching monitors to mirroring mode which seems to resolve the issue for some folks. This option is in the Displays preference pane shown below:

Screenshot courtesy of Adam Christianson and his HP Monitor. We don’t judge.

Another way to fix this is to hop over to Mission Control and uncheck the ‘Displays have separate Spaces’ option, which sets displays back to the way they used to behave. This change requires a log out/in to take effect, but again is a method that has been reported to work.

Screenshot of Mission Control.

We speculated about this in the TMO Towers, and came up with the following theory: this problem occurs because in the old days Time Machine always ran in full-screen mode on the main screen, before there was even an official ‘Full Screen Mode.’

Now Mavericks lets you do this “run an app in its own space” thing.. Assigning those spaces to separate monitors is awesome because it creates the option of separate full-screen apps on each monitor. Well, it’s awesome until you need to restore, because Time Machine doesn’t like it at ALL. Any time it’s set up is the time when Time Machine fails.

Using the steps below, however, should allow you to correct it.

Image made with help from Shutterstock.

Sign Up for the Newsletter

Join the TMO Express Daily Newsletter to get the latest Mac headlines in your e-mail every weekday.

Comments

mlvezie

I have two external monitors on my rMBP. I haven’t noticed that, but I have noticed that if I enter time machine on an external monitor, the window looks really small. My work-around has been to move the finder window to my primary monitor and enter time machine from there.

Kelly Guimont

@mlvezie some people have reported that working for them, others had tried other solutions first and reported success. Everything seems to be hit and miss at this point. I’m glad that sorted it out for you!

Log-in to comment