macOS Sierra: Where did HiDPI scaling on external 4K displays go?

“Some Mac owners are reporting problems with external monitors and the use of scaled resolutions since installing macOS Sierra earlier this week,” Tim Hardwick reports for MacRumors.

“Several MacRumors readers using 4K displays have described the disappearance of scaled HiDPI resolutions beyond 1920×1080 since updating from OS X El Capitan, leaving their options reduced to 1080p or a non-scaled native resolution of 3840×2160,” Hardwick reports. “Monitors with native 1440p resolutions also seem to have had HiDPI scaling options removed.”

“Owners of larger displays often use Apple’s scaled HiDPI resolutions offered in Display preferences to enjoy increased desktop space without reducing the legibility of tex,” Hardwick reports. “MacRumors can also confirm that the issue appears to be software-related, since the scaled resolutions reappear when affected Macs are rolled back to OS X El Capitan. The issue does not seem to be limited to a particular monitor brand and the latest Public Beta (10.12.1) of Sierra released on Thursday does not reinstate the missing resolutions. ”

Read more in the full article here.

MacDailyNews Take: This seems like a bug, not an intentional removal on Apple’s part.


    1. Now that is truly cynical… 😉

      For my part, I am confident that this change was not intentional and will soon be rectified by Apple.

      Just wait until the new Macs are released. Most people will be happy again and the doubters will quiet down for a while.

    1. Is that you, Tim Cook?

      Apple has had several years of poor external display management, even with Apple’s own displays. And now that Apple seems hellbent on getting out of the display business and relying entirely on integrated low-performance graphics, then there is little hope for a better experience for users.

      Imagine this: Mac Pro driving 3 different displays: dual Cinema displays in the control room (displayport), 80″ 1080p (HDMI) display in the studio, a separate room.

      Different connectors, different native resolutions, different lighting conditions, and the desire to mirror or display different things at a moment’s notice. Getting it to work has been a pain in the ass, and Apple still can’t seem to make it easy.

  1. Never upgrade a production Mac with .0 software. Only install on a test Mac.

    Myself and all my clients wait until .3 usually.
    OS X 10.10 screwed up WiFi until 10.10.4 when they completely chopped the new code out and put the old code back in.

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