Apple Details Expanded 4K Display Support Included in OS X 10.9.3
Apple today updated its 4K display support page following the OS X 10.9.3 update, detailing the enhancements that have been made to 4K display support.
Running OS X 10.9.3, the 2013 Mac Pro and the 2013 Retina MacBook Pro now support several new 4K displays, including the Sharp PN-K321, ASUS PQ321Q, Dell UP2414Q, Dell UP3214Q, and the Panasonic TC-L65WT600. Previously, only the Sharp and ASUS displays were officially supported.
There's a new section on display adjustments and Retina scaling, introduced to allow the resolution of 4K displays to be adjusted much like the display of the Retina MacBook Pro, improving the size and readability of text and other on-screen elements.
The revamped support page also notes that both the Mac Pro and the Retina MacBook Pro are now able to support 60 Hz 4K output for the five supported displays, using multi-stream transport, a feature previously limited to the Mac Pro. With the higher refresh rates, response times for tasks like game playing and video editing will be improved. Detailed instructions are given for enabling the option:
MacBook Pro (Retina, Late 2013) or Mac Pro (Late 2013) also support 60 Hz displays using multi-stream transport (MST). These displays need to be manually configured to use MST. Follow the steps below to use the display's built-in controls to enable this feature.
- Sharp PN-K321: Choose Menu > Setup > DisplayPort STREAM > MST > SET
- ASUS PQ321Q: Choose OSD menu > Setup > DisplayPort Stream
- Dell UP2414Q and UP3214Q: Choose Menu > Display Setting > DisplayPort 1.2 > Enable
- Panasonic TC-L65WT600: Choose Menu > Display Port Settings > Steam Setting > Auto
Your Mac will automatically detect an MST-enabled display. However, your display may require a firmware update to support 60Hz operation. Please contact your display vendor for details. If your specific DisplayPort display is not listed above, check with the display's manufacturer for compatibility information.
First released yesterday, OS X 10.9.3 with enhanced support for 4K displays can be downloaded via the software update tool in the Mac App Store.
Popular Stories
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon.
Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week.
iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28.
The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. iOS 26.2 is compatible with the iPhone 11 series and later, as well as the second-generation iPhone SE.
The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21.
There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1.
Mac users can download the macOS Tahoe update by using the Software Update section of System Settings.
macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products.
Here's what's supposedly coming:
An improved pairing process, though no details were provided. AirTag pairing is already...
Apple today released iPadOS 26.2, the second major update to the iPadOS 26 operating system released in September. iPadOS 26.2 comes a month after iPadOS 26.1.
The new software can be downloaded on eligible iPads over-the-air by going to Settings > General > Software Update.
iPadOS 26.2 continues with the multitasking improvements that were added with iPadOS 26.1. You can now drag and...
Foldable smartphone panel shipments are projected to jump 46% year-over-year in 2026, with Apple's entry into the market serving as the main catalyst, according to Counterpoint Research's latest Foldable-Rollable Display Shipment Tracker.
"Apple is the key driver as it starts to procure panels for its first foldable iPhone," said Counterpoint's Guillaume Chansin. The research firm expects...
