Groups > comp.sys.mac.hardware.misc > #2067

Re: External monitor not waking

From	MartinC <noreply@nospam.invalid>
Newsgroups	comp.sys.mac.misc, comp.sys.mac.hardware.misc
Subject	Re: External monitor not waking
Date	2018-04-26 13:27 +0200
Organization	A noiseless patient Spider
Message-ID	<pbsd3s$h9b$1@dont-email.me> (permalink)
References	<1nnszqn.1yxppaq10wk859N%dcohenspam@talktalk.net>

Cross-posted to 2 groups.

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Am 25.04.18 um 09:15 schrieb Daniel Cohen:

> Most of the time this works fine, but recently (not sure if it started
> when I went to 10.13.4 or whether it had happened on 10.13.3) the
> monitor sometimes refuses to wake up when I wake the computer from
> sleep. That is, the monitor insists on remaining in Power Save mode, and
> in fact says "entering power save mode" when the computer wakes.

This happens here with a MacPro 2013 and an EIZO monitor (Thunderbolt), 
about once or twice a month.

I did a google search for it and found that it happened quite frequently 
in the past to a lot of people. At that time EIZO claimed that it's a 
problem on the Apple side of Thunderbolt, and Apple claimed it's on the 
EIZO end of the cable. Since it went away for the majority, someone 
probably fixed something, somewhere, sometime.

Anyway, it does happen here rarely every now and then, and after some 
more troublesome attempts like re-booting, unplugging cables I 
eventually found out that a simple second "wake up call" to the monitor 
always fixes it.

So if it stays black, I just hit CTRL-SHIFT-EJECT (which triggers the 
screen energy saver) followed by "any key" to wake it up again.

This takes 2 seconds and never failed, so I actually just do it now once 
every two weeks without really thinking about it anymore...

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Thread

External monitor not waking dcohenspam@talktalk.net (Daniel Cohen) - 2018-04-25 08:15 +0100
  Re: External monitor not waking nospam <nospam@nospam.invalid> - 2018-04-25 05:22 -0400
    Re: External monitor not waking dcohenspam@talktalk.net (Daniel Cohen) - 2018-04-25 13:41 +0100
      Re: External monitor not waking nmassello@yahoo.com (Neill Massello) - 2018-04-25 08:23 -0600
        Re: External monitor not waking Jolly Roger <jollyroger@pobox.com> - 2018-04-25 14:46 +0000
      Re: External monitor not waking nospam <nospam@nospam.invalid> - 2018-04-25 11:51 -0400
        Re: External monitor not waking Jolly Roger <jollyroger@pobox.com> - 2018-04-25 16:19 +0000
          Re: External monitor not waking nospam <nospam@nospam.invalid> - 2018-04-25 12:23 -0400
            Re: External monitor not waking dcohenspam@talktalk.net (Daniel Cohen) - 2018-04-26 08:09 +0100
              Re: External monitor not waking nospam <nospam@nospam.invalid> - 2018-04-26 10:31 -0400
              Re: External monitor not waking Chris Ridd <chrisridd@mac.com> - 2018-04-29 11:20 +0100
                Re: External monitor not waking dcohenspam@talktalk.net (Daniel Cohen) - 2018-04-29 19:15 +0100
                Re: External monitor not waking Chris Ridd <chrisridd@mac.com> - 2018-04-30 17:35 +0100
    Re: External monitor not waking Wade Garrett <wade@cooler.net> - 2018-04-25 15:46 -0400
  Re: External monitor not waking Jolly Roger <jollyroger@pobox.com> - 2018-04-25 14:38 +0000
  Re: External monitor not waking MartinC <noreply@nospam.invalid> - 2018-04-26 13:27 +0200
    Re: External monitor not waking dcohenspam@talktalk.net (Daniel Cohen) - 2018-04-27 07:30 +0100

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