A sec­ond life as a sec­ond screen

Mac Format - - MAC SOS -

Can I use my old iMac as a sec­ond screen along­side my new one to ex­tend my desk­top across both ma­chines? Graeme Minto Tar­get Dis­play Mode is the eas­i­est way to do this. You connect the two iMacs with a Mini Dis­play­Port or Thun­der­bolt ca­ble and then press ç+ @ on the old iMac. The new iMac will see it as an ex­ter­nal mon­i­tor af­ter that. Macs older than 2009 don’t sup­port Tar­get Dis­play Mode at all, Late 2009 and Mid 2010 mod­els must have a 27-inch dis­play. With Mid 2011 and newer mod­els, Tar­get Dis­play Mode is avail­able on both screen sizes (but not at all on Retina 5K mod­els), and the iMac whose desk­top you’re ex­tend­ing will need a Thun­der­bolt port. If ei­ther Mac doesn’t meet th­ese cri­te­ria, Tar­get Dis­play Mode won’t work.

You could still do a very limited sort of screen ex­tend­ing us­ing Air Dis­play (£14.99 ava­tron.com), but it sends screen up­dates over the net­work, so you get much lower frame rates than with a ded­i­cated video ca­ble. This is good enough for desk­top apps, if you are fairly tol­er­ant, but it’s too jerky for full-screen video or games.

Cer­tain com­bi­na­tions of iMac can be chained to­gether with Tar­get Dis­play Mode.

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.