iMac 2019 issues

Discussion in 'iMac' started by Rumpot, Jul 1, 2019.

  1. Rumpot macrumors newbie

    Joined:
    May 25, 2012
    #1
    I have just received my iMac2019, 1TbSSd, Vega 48 and have a couple of issues.

    When I first updated to latest Mojave, it wouldn't even turn back on, but after a bout 3 hr it seems to boot itself and seems to be ok now. But it does take > 30 seconds to boot, is this normal for Mojave? My 2013 iMac using an 850evo on my BlackMagic dock would boot High Sierra in ~10 sec.

    Now the issue I have is it takes ~2 minutes to wake from sleep if at all.
    I think I have narrowed it down to the external monitor(s). When it does not wake if I unplug them, the iMac screen will wake.

    Some times while waking it will ping pong between the monitors, one screen will light up for a second as the others go dark, then does this indefinitely.

    My current connections are:
    usbc1 -> TB3-->TB2 apple adapter --> BlackMagicUltraDock --> Acer XR382CQK
    usbc2 --> Belkin USB-C to HDMI Adapter --> Samsung TV
    wired keyboard

    I have tried
    Reset the SMC
    Reset the NVRAM

    Is there anything else I could try? Any logs to check for what is happening?
     
  2. ventmore macrumors 6502a

    Joined:
    Jul 13, 2008
    #2
    The first thing I’d do is remove all the external docks and devices and try booting. If that helps, then add devices back 1 by 1, booting each time, to see which one is causing the slow boot.

    With that said......it would concern me a little if my machine had refused to boot for 3 hours, then just suddenly started to work again.
     
  3. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #3
    Thanks. Yes, it was concerning, now I'm just hoping that was my one gremlin for this machine.

    The slow boot >30 sec is without anything attached, what should the boot time be with this machine?
    The only issue left is the not waking from sleep when the external displays are attached.
     
  4. ventmore macrumors 6502a

    Joined:
    Jul 13, 2008
    #4
    I don’t have a 2019 iMac, but I can tell you that my 2015 MBP definitely takes longer to boot Mojave than it did High Sierra.

    I’ve just timed my machine, and it took 32 secs including typing my password. I have FileVault enabled.
     
  5. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #5
    Thanks for testing, ~30 sec seems standard for Mojave then, my buddy tested on his 2017MBP he got ~33 seconds.

    Any suggestions for what logs I can view to determine the wake from sleep issue?
    I've already done this:
    https://support.apple.com/en-us/HT204760
     
  6. ventmore macrumors 6502a

    Joined:
    Jul 13, 2008
    #6
    Do you have the same issue with just one screen attached?

    If so, is it the same no matter which screen is attached?

    You could check the system logs in console.app to see what’s happening during wake-up.
     
  7. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #7
    Yes, either screen, no screens attached and it'll wake up fine. I've never seen this before...

    It worked flawlessly on my 2013, the only difference is I have to use the usb-c to TB2 and usb-c to HDMI adapters.

    I'll check the system logs tonight, thanks.
     
  8. kis macrumors 68000

    Joined:
    Aug 10, 2007
    Location:
    Switzerland
    #8
    Get it exchanged. I got the exact same machine and have absolutely zero issues
     
  9. Rumpot, Jul 8, 2019
    Last edited: Jul 8, 2019

    Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #9
    The new one came in --boots fine and I can even reset the nvram.

    However the sleep issue still exists(this can't be normal - WakeTime: 123.471 sec) :
    18:01:34.590008 -0700 powerd Entering Sleep state due to 'Software Sleep pid=88':TCPKeepAlive=inactive
    18:01:39.593284 -0700 powerd
    18:01:39.593609 -0700 powerd
    18:02:31.007823 -0700 powerd
    18:02:31.031863 -0700 powerd [System: PrevIdle DeclUser SRPrevSleep kCPU kDisp]
    18:02:31.033612 -0700 powerd [System: PrevIdle DeclUser kDisp]
    18:02:31.383805 -0700 powerd Kernel Idle sleep preventers: IODisplayWrangler
    18:02:31.384200 -0700 powerd Display is turned on
    18:04:33.066859 -0700 powerd [System: PrevIdle PrevDisp DeclUser kDisp]
    18:04:33.383881 -0700 powerd Wake from Normal Sleep [CDNVA] due to XHC1/UserActivity Assertion:
    18:04:33.383974 -0700 powerd hibmode=3 standbydelay=86400
    18:04:33.384114 -0700 powerd WakeTime: 123.471 sec

    Any suggestions? Do I just need to set hibmode back to 0?

    Here is the log with no external Displays
    18:25:52.895901 -0700 powerd Entering Sleep state due to 'Software Sleep pid=88':TCPKeepAlive=inactive
    18:25:57.908244 -0700 powerd
    18:25:57.908456 -0700 powerd
    18:41:53.005154 -0700 powerd
    18:41:53.030046 -0700 powerd [System: PrevIdle DeclUser SRPrevSleep kCPU kDisp]
    18:41:53.033326 -0700 powerd [System: PrevIdle DeclUser kDisp]
    18:41:53.880106 -0700 powerd Kernel Idle sleep preventers: IODisplayWrangler
    18:41:53.882876 -0700 powerd Display is turned on
    18:41:54.861953 -0700 powerd Wake from Normal Sleep [CDNVA] due to XHC1/UserActivity Assertion:
    18:41:54.862055 -0700 powerd hibmode=3 standbydelay=86400
    18:41:54.862108 -0700 powerd WakeTime: 2.943 sec


    Here is the old log from old iMac Sierra(using same external displays):
    13:43:50.093040 -0700 powerd Kernel Idle sleep preventers: IODisplayWrangler
    13:43:50.093438 -0700 powerd Display is turned on
    13:43:50.592412 -0700 powerd DarkWake to FullWake [CDNVA] due to HID Activity:
    13:43:50.592564 -0700 powerd hibmode=0 standbydelay=10800
    13:43:50.593843 -0700 powerd
    13:43:50.976374 -0700 powerd
     
  10. kis macrumors 68000

    Joined:
    Aug 10, 2007
    Location:
    Switzerland
    #10
    That’s seriously weird. Did you do a restore when you got the new one or did you install from scratch?
     
  11. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #11
    I did nothing but create a test account(it came with latest mojave), hooked stuff up and started testing. Apple Care has not been to helpful, but I did finally get them to escalate it.

    When it says Display is turned on it's really not, all screens wake after the > 2 min wait
    18:02:31.384200 -0700 powerd Display is turned on
    18:04:33.066859 -0700 powerd [System: PrevIdle PrevDisp DeclUser kDisp]
    18:04:33.383881 -0700 powerd Wake from Normal Sleep [CDNVA] due to XHC1/UserActivity Assertion:
    18:04:33.383974 -0700 powerd hibmode=3 standbydelay=86400
    18:04:33.384114 -0700 powerd WakeTime: 123.471 sec
     
  12. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #12
    To follow up 16 days later. still not fixed.
    It has been escalated to engineering, but all they did is ask the same questions in a different way( with a 2 day turn around). There is a bug still in Mojave with some external screens off a dock. What an absolute horrible experience, especially after dropping ~4k on a new machine.

    Looks like I'll be shipping back this new iMac for a refund, support is pretty much useless.
     
  13. mikey8811 macrumors member

    Joined:
    Mar 23, 2019
    #13
    My experience too with a different issue culminating in my getting a refund. But yes, Apple support is pretty useless. The dragging on between the support agents and engineers is worse than dealing with bureaucracy.

    I wonder if it's possible to purchase Apple Care just for hardware sans the phone support, for less.
     
  14. robgendreau macrumors 68040

    Joined:
    Jul 13, 2008
    #14
    Aargh. Sleep/wake especially with external monitors, drives, etc just seems like something Apple can't solve...or won't. I ran Caffeine forever on my last iMac to prevent similar problems, including sudden ejection of drives. In dealing with my second monitor and 2019 iMac I got tipped that another cable would solve it, and it appeared to (USB-C Tbolt 3 to DisplayPort). The Dell supplied cable, ostensibly the same, caused problems.

    Even so, it seems have to reset NVRAM too often, and/or the SMC. It's like it has Alzheimers.
     
  15. Rumpot thread starter macrumors newbie

    Joined:
    May 25, 2012
    #15
    I'd keep an eye on it as I thought my issue was fixed by using a USB-C Tbolt 3 -->HDMI, worked until I rebooted. Then back to 2 min wakes.
    I don't have best confidence with Apple Engineering as I sent them the CaptureData that captures all the diagnostic information/logs, waited 2 days to hear back to have them ask "so what monitors are connected"?
    It's really frustrating to have the AppleCare "specialist" as a go between with engineering and wait 2 days to get asked the same questions
     

Share This Page

14 July 1, 2019