We have included some cheaper non-Thunderbolt USB-C docks. That said, there are still some great-and often more affordable-TB3 docks available, and most Apple users won’t see much difference between TB3 and TB4-the Thunderbolt 4 standard was mainly about getting Windows laptops up to speed, although there are technical benefits for MacBook Pro users, such as smarter daisy-chaining and faster PCI hard-drive connections. Hopefully everything will get fixed a little quicker this time around.If your MacBook is equipped with Thunderbolt 4, then you really should buy a TB4 dock if you need more ports than those 14/16in laptops already possess.īuying a Thunderbolt 4 dock is a wise decision based on future-proofing even for owners of TB3 Macs as the standard is backwards compatible with TB3 and USB-C. Workaround is to use a USB 2.0 cable if audio is required. DisplayLink Audio not working on USB 3.0.Finder or other applications can crash or not able to launch.Applications flickering on DisplayLink screens.Kernel Panic on USB 3.0 with DL-3000 devices. Screensaver may start running unexpectedly.Kernel panic when using Bluetooth devices.DisplayLink's support article for Mountain Lion shows that it can take a while to get everything right: In the case of Mountain Lion, some of the DisplayLink bugs existed until OS X 10.8.5, which came out more than a year after the initial Mountain Lion release. This isn't the first time a new version of OS X has resulted in trouble for some users. A repeat from Mountain LionĭisplayLink's driver for Macs allows any Intel-based Mac to connect up to four monitors over USB. 5, should reverse that performance decline.Īs we noted earlier, the more severe problems described by DisplayLink must wait for a fix from Apple. (From what Roose told me, I think my choppy mouse movement is caused by the DisplayLink driver's own troubles rather than Apple's interface regressions.)Īnother company that makes drivers, Plugable, identified similar problems and advised users of multiple monitors to hold off on upgrading to Mavericks. The stable DisplayLink 2.1 release, due out by Nov. There is also a separate performance problem in DisplayLink's driver that can be fixed by DisplayLink itself. "The performance issue was due to the way our driver has to register with the OS for resources in 10.9 and will be a problem with v2.0 and 2.1 beta," Roose told us. We've e-mailed Apple ourselves, but we haven't heard back yet. AdvertisementĭisplayLink contacted Apple to make it aware of the bugs, but there's no word yet on when they might be fixed. The release note for v2.1 will cover all known issues," DisplayLink Senior Product Manager William Roose told Ars. "This list covers the major issues that we believe users will find. The list of Mavericks-specific bugs could expand, but it probably won't get much more extensive. DisplayLink does not have workarounds to fix these issues and requires Apple to fix these problems in future 10.9 OS X updates." Unfortunately, there appear to be regressions in these interfaces in OS X 10.9 which are exposed when using DisplayLink screens. "DisplayLink uses standard Apple interfaces to integrate into OS X to add additional USB graphics displays and obtain screen updates. These problems can't be fixed with a new DisplayLink driver, the company said. Again, this is caused by Apple's Window server crashing. On the Retina Macbook Pro, changing the layout to mirror logs the user out.This can be recovered by replugging the DisplayLink device. This is caused by Apple's Window server crashing. All screens black and unusable after unplugging a DisplayLink screen.Display arrangement is not kept when using 2 or more DisplayLink displays.Some applications can show corruption and/or missing contents while updating windows contents.Examples of applications that show this issue are Safari, QuickTime, and the App store. Some applications can show severe flickering on DisplayLink screens.It turns out I'm not alone-and my troubles are mild compared to those experienced by other users.Īccording to DisplayLink, the following bugs have been identified in OS X 10.9: Updating to a beta version of the DisplayLink driver that supports Mavericks didn't change anything. Instead of the mouse cursor moving smoothly across the screen as it does on my primary display, it travels in a jerking motion on my USB-powered monitor that relies on a DisplayLink driver. The first thing I noticed upon installing Mavericks on my Mac mini is that mouse movement on my second monitor was suddenly choppy.
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