What you need to know
- Users are reporting more troubles with macOS 12.3.
- Some users are complaining that can no longer use USB-C external displays.
- The update has already borked game controllers and some Macs with replaced logic boards.
Yet another major issue appears to have been spotted in the latest version of macOS Monterey, this time pertaining to external displays.
Reports noted by MacRumors indicate that some users are struggling to use external displays connected over USB-C. The issue has been a persistent problem in the 12.3 update even when it was in beta:
Monterey 12.3 is still doing weird things with displays on b3.
Just updated and had to unplug both USB-C displays to get my main HDMI one to even appear. Lovely stuff.Monterey 12.3 is still doing weird things with displays on b3.
Just updated and had to unplug both USB-C displays to get my main HDMI one to even appear. Lovely stuff.— Oliver Haslam (@OliverJHaslam) February 16, 2022February 16, 2022
One disgruntled user wrote:
After updating my Mac Mini today to 12.3, my monitor now no longer displays an image via USB-C, just keeps saying on no signal on the monitor.I have tried HDMI and same issue. The odd occasion it will display a picture but once I shutdown or restart the mac mini it does not display a picture. The mac is booting up. I have had to resort to connecting it to my old TV with HDMI connection.
Users in the reply thread and over at MacRumors' forums appear to be having the same issue. One user suggested that this is an older DisplayPort bug on macOS Monterey that does have a workaround:
So this is related to a previous long-standing bug with DisplayPort, which forced all of us to go into our monitor settings and switch from DP1.4 to DP1.2 so our external monitors would work. Apparently in "fixing" this bug, Apple decided that checking autonegotiation was redundant and the user needs to manually fix things.The solution is to set your monitor to DP1.4. For a BenQ monitor, that is going to suck, because if you don't have a valid source input, it won't give you the display settings menu. You'll need to hook up a second computer to the monitor without macOS 12.3 so the monitor has a signal, then go into the menus (System -> Advanced -> DisplayPort) and switch back to DP 1.4. Your monitors will work.
It continues a rough release for macOS 12.3, following reports the new update is causing issues with various game controllers and was bricking Macs that had previously had their logic boards replaced.
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