MacBook has some general problems with recognizing external monitors after being asleep for a while (regardless of the dock, also doesn't recognize them when plugged directly into the TB4 ports of the MB).ASUS monitor seemingly doesn't support DDC (Samsung does).Some things that might be interesting to know: ASUS VG248 ( ASUS Website), connected to the Dock via generic USB-C to HDMI cable. Samsung Odyssey G7 27" Main Monitor ( link to Samsung product website), connected to the Dock via generic USB-C to Display Port cable.CalDigit Thunderbolt 4 Element Hub ( link to their website).I assume it might be linked to the monitor shutting down, at least the Samsung monitor isn't displayed in MacOS at all when it's turned off or in standby. are performed but sometimes also when my MB stays on the dock with the monitors blacked out for a while. Like I said, this reliably happens when steps 2. monitors come alive again but mirror the internal monitor, 10x CMD does nothing in this state.I know one way to replicate it but it also happens at random but I will focus on the way I can replicate for now: Now to the issue where Monitors are stuck in the mirror mode and I have to go into system settings to set them back to main / extend mode. Second external monitor doesn't react to blackout key kombination at all when that happens. can be repeated multiple times without change in behavior if I get into that wrong blackout state described in two. seemingly happen at random, I can't really pin down what combination of events leads to the monitor not blacking out properly in the first place. only ways to recover primary external monitor from this mirroring state are either the system settings or pressing CMD 10 times.move mouse to internal monitor of MB, Ctrl-CMD-6 again, primary monitor goes back to mirroring internal monitor, not blacked out.move mouse to internal monitor of MB, Ctrl-CMD-6 again, primary monitor is now blacked out properly.Primary monitor switched to mirroring the internal MB monitor, isn't "blacked out" but still same brightness as previously.put mouse on primary external monitor (main monitor) and press Ctrl-CMD-6.I just tried your steps and got the following result: In case that happened for you, make sure to re-enable mirroring by unchecking the following checkbox in the Controls menu of each display: "BlackOut without mirroring" checkboxįirst of all, thanks for your quick response to a random thread on reddit! I'm on 5.9.3 and I hope I can shed some light into my situation and problems with the comment below. If you want to automate turning off more than one screen, I can also help you with a macOS Shortcut as Lunar has support for that in the last version.ĮDIT: for some people, BlackOut without Mirroring got enabled automatically (most likely because of a one-time lousy monitor connection that got the monitor reported as not supporting mirroring) Let me know if you encounter anymore issues, maybe with some details about your monitors setup to better understand the problem. I just triple checked and this works properly on my end. With the mouse on the builtin, press Ctrl-Cmd-6 again to disable BlackOut.Move the mouse to the external monitor you want to turn off and press Ctrl-Cmd-6.Make sure Auto BlackOut is disabled on the builtin display page (as you seem to want the reverse: turn off external screens, not the builtin).After launching Lunar v5.9.3, press Command ten times in a row to reset every state related to BlackOut.Try updating to the latest version v5.9.3 and doing the following steps just to make sure everything's in order: There were a few bugs in that last few versions because I was working on fixing some annoying crashes.
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