Ruoyu

Q: with 10.11.2, Mac Pro 2013 will not wake up 4k displays after sleep like before.

I have installed 10.11.2 today and found the Mac Pro will not wake up the 4k displays connected to thunderbolt ports. I tried many kinds of 4k displays including u28e590d, u24e590d, p2716q etc, but none of them would wake up after sleep. the only resolution is to unplug and replug the thunderbolt (display port) cable to a different thunderbolt port.

those displays all work perfectly with 10.11 and 10.11.1.

 

Steps to Reproduce:

1: have a Mac Pro 2013, any configurations and install 10.11.2

2: plug a 4k display like u28e590d to thunderbolt port using mini-displayport cable.

3: let the Mac Pro go sleep

4: when press a key or click the mouse, the Mac Pro will wake up but the 4k display will not wake up.

 

anyone is experiencing the same problem?

Posted on Dec 9, 2015 1:25 AM

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Q: with 10.11.2, Mac Pro 2013 will not wake up 4k displays after sleep like before.

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  • by Sam.Axe,

    Sam.Axe Sam.Axe Dec 9, 2015 2:54 AM in response to Ruoyu
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    Dec 9, 2015 2:54 AM in response to Ruoyu

    Hi.

    same problems here :-(

     

    MacPro 2013 with D300

    4k Displays: Samsung 28e590d and Asus PA328Q.

     

    Can help anyone? This problem is very annoying !

     

    Andi from germany.

  • by andrewkendall,

    andrewkendall andrewkendall Dec 9, 2015 5:22 AM in response to Sam.Axe
    Level 1 (0 points)
    Dec 9, 2015 5:22 AM in response to Sam.Axe

    Same problem here with Mac Pro (Late 2013) also with D300.

     

    I have 2x Apple Thunderbolt Display (27-inch) which are working fine when waking from sleep, but Samsung U32D970Q 4K won't wake up.

     

    Started directly after installing 10.11.2.

  • by Sam.Axe,

    Sam.Axe Sam.Axe Dec 9, 2015 8:30 AM in response to Sam.Axe
    Level 1 (0 points)
    Dec 9, 2015 8:30 AM in response to Sam.Axe

    Nobody else affected by the problem ???

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 11:03 AM in response to Sam.Axe
    Level 1 (0 points)
    Dec 9, 2015 11:03 AM in response to Sam.Axe

    I am having this issue as well:

     

          Details Here     

  • by eludwig,

    eludwig eludwig Dec 9, 2015 11:23 AM in response to Ruoyu
    Level 1 (24 points)
    Dec 9, 2015 11:23 AM in response to Ruoyu

    I have had this problem with every version of 10.x since I bought my Dell UP2414Q (24" 4K) in June of 2014.

     

    It has always been intermittent without regard for the version of the OS. I have given up on sleeping it at all. I leave it on all day (w/ screensaver) and then push the power button once at night and once again in the morning. I leave my MacPro (late 2013) awake 24x7.

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 11:28 AM in response to eludwig
    Level 1 (0 points)
    Dec 9, 2015 11:28 AM in response to eludwig

    Unfortunately if I power off my monitor and power it back on, it doesn't come back any more as of 10.11.2. It used to before that

  • by eludwig,

    eludwig eludwig Dec 9, 2015 11:59 AM in response to Cody_G
    Level 1 (24 points)
    Dec 9, 2015 11:59 AM in response to Cody_G

    I hear you. These 4K issues are a big mess and a headache for all of us unlucky MacPro owners. What really irks is that some of these displays are listed by Apple as "supported", but obviously aren't.

     

    I originally bought my MacPro because I wanted desktop retina -- had I known that Apple was going to release the iMac 5K, I probably would have gone with that, seeing as I don't really need the brute power portion of the MacPro, but instead we are stuck out here floating in a "half-supported" world. Whose fault are these problems? Apple's or the display manufacturers or maybe even a poorly written spec. Who knows?

     

    Ugh...

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 12:06 PM in response to eludwig
    Level 1 (0 points)
    Dec 9, 2015 12:06 PM in response to eludwig

    If it makes you feel any better, it does it on my 1440p monitor as well, not just 4k.

  • by Ruoyu,

    Ruoyu Ruoyu Dec 9, 2015 12:14 PM in response to Cody_G
    Level 1 (0 points)
    Dec 9, 2015 12:14 PM in response to Cody_G

    Thank you for the reply, I found a temporary solution: unplug the cable and replug it into a DIFFERENT thunderbolt port.

    I can confirm this problem was solved since 10.10.3 and 10.11.2 brings it back.

    someone reported that pressing power button to awake Mac Pro will also turn on the display, but didn't work for me.

    I have submitted a bug report to Apple but don't know if they will do anything for us.

  • by Ruoyu,

    Ruoyu Ruoyu Dec 9, 2015 12:22 PM in response to Ruoyu
    Level 1 (0 points)
    Dec 9, 2015 12:22 PM in response to Ruoyu

    I just found another solution:

    (I have 6x 4k Displays, so I have been playing with them to find out a better solution for us)

    if we have:

    Magic touchpad 2, Magic mouse 2, magic keyboard 2 or a classic USB keyboard,

    WE CAN JUST PRESS THE POWER BUTTON TO WAKE UP THE MAC PRO, THE DISPLAY WILL BE TURNED ON.

    however, it didn't work with old Apple wireless mouse, keyboard and touchpad, I dont know why.

     

    to recap:

    solution 1: replug the mini display cable to a different thunderbolt port.

    solution 2: use power button to wake up the Mac

    I prefer the second solution

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 1:00 PM in response to Ruoyu
    Level 1 (0 points)
    Dec 9, 2015 1:00 PM in response to Ruoyu

    I have seen the first method work, but not all of the time.

     

    I'll give the second solution a try!

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 1:12 PM in response to Cody_G
    Level 1 (0 points)
    Dec 9, 2015 1:12 PM in response to Cody_G

    The power button did not work

  • by Ruoyu,

    Ruoyu Ruoyu Dec 9, 2015 2:00 PM in response to Cody_G
    Level 1 (0 points)
    Dec 9, 2015 2:00 PM in response to Cody_G

    I guess we might need to submit a bug report to Apple as this problem was solved since 10.10.3.

    I have done one.

    https://bugreport.apple.com

  • by Cody_G,

    Cody_G Cody_G Dec 9, 2015 2:36 PM in response to Ruoyu
    Level 1 (0 points)
    Dec 9, 2015 2:36 PM in response to Ruoyu

    I have filed a bug...

     

    Bug ID: 23828902

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