M1 MacBook Air external display keeps waking up

usb c to dp wake from sleep is still wonky for me in specifically in clamshell mode . if i wake m1 air within 2 mins of sleep then it wakes the external monitor perfectly and outputs the display signal without any issue. but, when i wake the m1 air after 2 mins or say after an hour the external monitor wakes up perfectly but does not receive the signal output from the mac and goes to sleep again until i press any key on keyboard which outputs the display signal.

on the other hand usb c to hdmi is working flawlessly even in clamshell mode i can wake my monitor outputting display signal even after a long long sleep no issue at all. m1 macs are wonky when it comes to DP protocol. what is your experience? i hope atleast the macos 11.3 solves this issue.😔

Glad I found this thread, I thought it was only with me and this was driving me crazy. I thought the Macbook was displaying notifications on my external monitor, but I have this turned off and the issue still happens.

I have an LG 27UL850-W for 8+ months and the issue started last week after I got a M1 Macbook Pro. Never ever had it with my previous 2017 Macbook Pro.

Looks like one possible fix is turning off the monitor by it's own button/menu after you sleep the Macbook, but I'm not 100% sure this really works.

I saw a guy on a forum who used type-c to HDMI to solve this problem. However, he used a power tester to find that the power still increased to 6 watts every about 10 minutes. So in fact it still woke up, but it didn't wake up the monitor.

This is the powernap features of M1, which will be maintained at intervals during sleep.

With the commands and actions I mentioned above, you can prevent MacBook from executing these tasks.

You can use the command pmset -g log | grep "Wake Requests" to see which tasks are set to be executed.

yeah, i see that now, i am getting absolutely 0 dark wakes now after the update. i think the commands are well implemented here on 11.2. after going through some online posts i could see the dark wake issue has been a problem from many years to different generations of mac its not only specific to m1 but, still apple has not pushed any fix yet, which is really surprising. i think people get submissive when it comes to apple they are ready give their battery life during sleep for no beneficial reason and apple dont even think it a issue.

Can you execute the following command in terminal "pmset -g log | grep DarkWake". I'll check your issue. I think I have completely solved this problem.

in my case, it used to select the lg27gn950 as a colour profile and i was having this issue of my monitor waking up frequently searching for signal and automatically going to sleep. unfortunately, i dont have my m1air with me as i am waiting for the replacement because it had colour uniformity issues.once, i receive my replacement the first thing i will do is installing the lg calibration studio.

Ok, it would have helped to know what you already tried. Given that the problem appears on 2 different types of MacBook it is likely the problem is the external display sending inappropriate Wake signals back to the computer. This seems more like a problem for the external display’s manufacturer to fix.

Goto system prefrences->battery->power adapter-> Check the "prevent the mac into sleep" and uncheck "wake up for network access". Slide "turn display off after" to never.Then cmd+ctrl+q esc.I solved it in this way.If it still wakes up automatically, it may be the compatibility of the monitor, or M1 MacBook in the final analysis.

I switched to the HDMI port on my Mac Mini and the issue was resolved. Not a great solution, especially for notebooks that don't have an HDMI port, but I'm hoping Apple or LG fixes this issue with USB-C soon.

Hey, i am noticing that after a restart my m1 air is resetting the dark wake commands and i have to manually feed the commands again after a restart or my external monitor starts waking up like before. I wonder this issue is because i am not running on macos 11.2rc and running on macos 11.1. Do you notice similar issue of darkwake command reset after every restart running 11.2rc on your m1 mac?

There is no way to solve the darkwake problem of Bluetooth(SMC.OutboxNotEmpty smc.70070000 wifibt bluetooth-pcie). Did you use devices such as airpods or bluetooth mouse?

I haven't encountered "SMC.OutboxNotEmpty smc.70070000 acdetach" for the time being.

If you took the time to read this thread you would see there is a suggested solution in post https://discussions.apple.com/thread/252087882?answerId=254319530022#254319530022

And that will cause:

DarkWake from Deep Idle [CDN] : due to NUB.SPMISw3IRQ nub-spmi.0x02 rtc/ Using AC (Charge:100%) 45 secs

Its not an LG issue. Same thing on the HP 27es displays for me. I own two of them, the HDMI connected one works fine, the USB C (with USB C to HDMI Adapter) has the issue.