Q: imac late 2012 and Asus PB279Q
Hi,
I have connected the Asus PB279Q as an external display for my iMac late 2012 through Display port cable (mini-display <> normal display).
I can not get more that 1920x1080 as a extended display. I can get full imac resolution on the Asus display only if I set the settings to video mirroring ("recopie vidéo" in french).
Is there something to do or set to get this external monitor set to 2560x1440 ? I know it can do it.
Thanks,
Frédéric
iMac, OS X El Capitan (10.11.1)
Posted on Nov 16, 2015 5:03 AM
Community Specialists
Hi fpierron,
I'm sorry to hear you are having this issue with your Mac. If you are having resolution issues when using your external display in extended desktop mode (as opposed to mirroring), you may find the information and troubleshooting steps outlined in the following articles helpful (in particular using the Option key to show additional resolutions):
OS X El Capitan: Adjust your display’s resolution
Get help with video issues on external displays connected to your Mac - Apple Support
Regards
Posted on Nov 17, 2015 2:45 PM