Studio Display Will Not Wake From Sleep

Interesting. I assume both displays have the issue when connected to the M1?

I just got off the phone with support and they had me delete the files starting with "com.apple.windowserver" in both:

[user]/library/ByHost/preferences

and

[computer]/library/preferences

There were a few such files in the User library location. Unsure if this has fixed anything since the issue usually occurs after extended sleep, but I'll report back. The next step I was given, if this doesn't work, is to try entering sleep from a fresh User account. After that I'll continue with support if nothing is solved.

So is this what you did?

For MacOS 12 Monetary, you got some relief by deleting two preferences files, then Restarting:

/Library/Preferences/com.apple.windowserver

~/Library/Preferences/com.apple.windowserver.<UUID>.plist   -OR possibly-

~/Library/Preferences/ByHost/com.apple.windowserver.<UUID>.plist 

-- where [~] tilde is an active abbreviation for "current user"

-- and <UUID> is a string of hexadecimal numbers unique to your system, grouped as 8-4-4-4-8 hexadecimal digits

Restart REQUIRED after these deletions (so that the System will re-create those plists in the correct form).

I may have hit on a super simple solution.

Set one of your Hot Corners to "Put Display to Sleep". I set mine for the lower right corner. Then, when my display won't wake up I just mouse down down down (to make sure the mouse is at the bottom) then right right right - and as soon as it hits the corner - boom - the screen comes on.

Works every time so far. 👍🏼

a common work-around for not waking from sleep is to give the mis-behaving display a 'timeout'. Sit it in the corner, facing the wall, with no power or data for a quarter hour. In that time, it will do a deep reset, and may be more willing to 'play nice with others' when it returns.

Same issue here. Started happening only recently, have had my macstudio for about one month now. Go away for several hours, come back, and I can't get the system to wake up. Am using a cabled Apple keyboard and bluetooth Apple mouse 2 with two non-apple displays. Tried unplugging and replugging in each individually, didn't help.

Today, after reading the above thread, I unplugged ALL of them, both displays and keyboard, replugged them in, and THEN the macstudio finally woke up.

What type of keyboard, mouse, trackpad are you using ?

3rd party devices may not awaken the Studio.

I have the Apple wireless keyboard and mouse that works flawlessly every time I wake up the Studio Mac.

I also use dual displays: Studio Display + Apple 27" TB display w/ TB3-TB2 adapter.

I have a similar issue with a brand new Mac Studio M1 Max (base model), with latest update (Monterey 12.4) using USB-C (not thunderbolt) connexion to an ultra wide 21:9 LG 38 inch display (connected to the back of the Mac Studio). When leaving the computer going to sleep after a certain period of time the display won't come back from sleep. Computer seems to resume but display is not coming back. Un-plugging and re-pluging the usb-c cable is reestablishing the video feed instantaneously, but it's not a workflow that I want to use everytime. I temporarily activated 'prevent your Mac from automatically sleeping when display is off' and set 'turn display off' to 'Never' in order to see if it will happen again (so far, it's ok, but not convenient for energy saving and long-term lifetime of equipment)

Dear Technically Inclined:

I am wondering what your power settings are. I have had the same issue with my older late 2014 iMac with waking from sleep and since I used it for work, it would present quite a problem when I say returned from lunch and go to wake it up.

Maybe an option of never sleep would be more appropriate for your workflow?

I have a similar setup: Mac Studio with Studio Display (only one monitor) and it seems to work with the following settings:

I run no screen savers and when I leave my Mac Studio, I do not "put it to sleep", instead I press Control+Command+Q on the keyboard which locks the screen and it almost immediately goes black after doing that.

Sometimes however it does lock or go to sleep on its own. I never notice the power light on front slowly 'blinking' like it did with the MacBooks I've owned in the past so I am unsure as to whether my Mac Studio ever goes to sleep.

Another option may be to use Amphetamine (not free). But it can prevent your Mac from sleeping while a certain program is running or during certain hours, etc. I have found that to be a real time-saver for me.

I also try to never leave an app running 24/7 and will quit all of my programs when I am finished using my Mac. Just a habit for me - unless it is necessary to keep a particular app running. I would never say leave Safari running or Music or any other app unless I forget to quit the app.

I also restart once a week. Was thinking of trying to keep my Mac running for a month, just to see how it fares, but have been unsuccessful so far due to things changing and updates and had one crash where it restarted without warning over night.

It is usually fairly stable.

Hope this is helpful and though it may not be a solution you are looking for, might prove to be a work-around to the frustration as it sounds like you are doing work on your Mac and it is being interrupted.

Best regards,

Mark

I have the exact same issue.

New Mac Studio with 2 Studio Displays. Never happens with both monitors at the same time but happens almost daily with one or the the other. Unplug power, wait one minute, plug in, good to go. Software is up to date. No response from Apple. Major drain on my creative focus and productivity overall. I've owned Macs since 1986 and loved them all but, based on this experience, I will not buy another - certainly not for work.

It seems like the only way service will solve the issue is if they’ve fixed a hardware issue that has plagued new displays for months, because I purchased two brand new ones that both had the issue.

My “solution” was to return and settle for a $400 LG 27” 4K w/ p3 color and a Caldigit TS4. I may not have 5k resolution but I paid half the price and my monitors actually wake from sleep. I can’t believe how many issues the Studio Display has had. I will revisit Apple Displays when they release a mini LED display that hopefully doesn’t run an OS.

to get a Mac display to become active, you need the Mac to query the display, and the display to answer with its name and capabilities. Otherwise, the display will not be shown as present, and no data will be sent to the display. "No signal detected" is generated by the DISPLAY, not by the Mac.

This query is only sent at certain times:

• at startup

• at wake from sleep — so momentarily sleeping and waking your Mac may work

• at insertion of the Mac-end of the display-cable, provided everything on that cable is ready-to-go

• hold the Option key while you click on the (Detect Display) button that will appear in Displays preferences (from another display)

so try doing some of those things and see if the display comes alive.

I didn't have the issue for a couple of weeks, then it happened again 2 days ago. I spent 5 minutes unplugging and replugging things. I have two monitors, one connected via the HDMI port, and the 2nd with a thunderbolt to DVI adapter. I also have an OWC expansion chassis (with its own separate power connection) connected via thunderbolt, with two additional drives, and I sometimes have other external drives connected via thunderbolt. I prefer not to unplug any of the external drives, because sometimes I have processes running on these (installs, etc.). Two days ago I gave up and unplugged the OWC and an external drive, plus everything else (both monitors, etc.), and the macstudio finally "came back" (began displaying on the main monitor so I could log in).

If the issue gets bad I'll consider changing the "Prevent automatic sleeping when the display setting", but I certainly don't want to do that if it might cause kernel panic reboots (as mentioned by snosek above...)

Our workaround was returning it because COME ON, APPLE!

Waiting 24h for a monitor to boot up is not an option.

A different brand monitor fixed the problem. It's nowhere nearly as nice as the Studio Display, I couldn't buy it at 0% interest with 3% Apple Card rewards, but it has a power button and it starts when we need it.

When the Apple Studio Display, misbehaves, it seems to require a substantial timeout. Disconnect from power and data for a quarter hour. (Sitting facing the corner or sitting on the stairs is optional.)