My Mac is a 2011 MacBookPro running OS 10.13.4. This is connected by Thunderbolt to a Belkin dock, which in turn is connected to a Dell
U2414H monitor.
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.
So far I have solved it by a mix of turning monitor on and off,
disconnecting power cable of monitor and reconnecting it, and restarting
the computer. But I haven't found a consistent set of steps to get it to work.
Any ideas for more diagnostic steps, or even a solution? As I said, this
is an occasional problem, usually the monitor becomes active as soon as
the computer wakes, but it occurs often enough to be troublesome.
the first thing to try is get rid of the belkin dock. belkin relabels
cheap chinese crap.
Daniel Cohen <dcohenspam@talktalk.net> wrote:
May be the ultimate solution, but definitely NOT the first thing.
You are suggesting I spend a great deal of money when the answer may be
something much simpler.
Connecting the display directly to the Mac, rather than through the
dock, should definitely have been one of the earliest diagnostic steps.
My Mac is a 2011 MacBookPro running OS 10.13.4. This is connected by Thunderbolt to a Belkin dock, which in turn is connected to a Dell
U2414H monitor.
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.
So far I have solved it by a mix of turning monitor on and off,
disconnecting power cable of monitor and reconnecting it, and restarting
the computer. But I haven't found a consistent set of steps to get it to work.
Any ideas for more diagnostic steps, or even a solution? As I said, this
is an occasional problem, usually the monitor becomes active as soon as
the computer wakes, but it occurs often enough to be troublesome.
May be the ultimate solution, but definitely NOT the first thing.
You are suggesting I spend a great deal of money when the answer may be something much simpler.
the first thing to try is get rid of the belkin dock. belkin relabels
cheap chinese crap.
May be the ultimate solution, but definitely NOT the first thing.
You are suggesting I spend a great deal of money when the answer may be something much simpler.
the first thing to try is get rid of the belkin dock. belkin relabels
cheap chinese crap.
May be the ultimate solution, but definitely NOT the first thing.
absolutely the first thing to try.
You are suggesting I spend a great deal of money when the answer may be
something much simpler.
what money?
according to what i found online, that display supports hdmi and minidisplayport.
And according to Dell, it comes with a DisplayPort cable in the box:
<http://www.dell.com/ed/business/p/dell-u2414h/pd>
you said your mac is a 2011 macbook pro, which has thunderbolt & mini-displayport in the same connector.
So he can connect it straight to the computer.
if it solves the problem, you know it's the belkin. if not, then
further investigation is needed.
Yep.
In article <1nntf75.wt7661j3i5vaN%dcohenspam@talktalk.net>, Daniel
Cohen <dcohenspam@talktalk.net> wrote:
the first thing to try is get rid of the belkin dock. belkin relabels
cheap chinese crap.
May be the ultimate solution, but definitely NOT the first thing.
absolutely the first thing to try.
You are suggesting I spend a great deal of money when the answer may be
something much simpler.
what money?
according to what i found online, that display supports hdmi and minidisplayport.
you said your mac is a 2011 macbook pro, which has thunderbolt & mini-displayport in the same connector.
if it solves the problem, you know it's the belkin. if not, then
further investigation is needed.
In article <1nnszqn.1yxppaq10wk859N%dcohenspam@talktalk.net>, Daniel
Cohen <dcohenspam@talktalk.net> wrote:
My Mac is a 2011 MacBookPro running OS 10.13.4. This is connected by
Thunderbolt to a Belkin dock, which in turn is connected to a Dell
U2414H monitor.
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.
So far I have solved it by a mix of turning monitor on and off,
disconnecting power cable of monitor and reconnecting it, and restarting
the computer. But I haven't found a consistent set of steps to get it to
work.
Any ideas for more diagnostic steps, or even a solution? As I said, this
is an occasional problem, usually the monitor becomes active as soon as
the computer wakes, but it occurs often enough to be troublesome.
the first thing to try is get rid of the belkin dock. belkin relabels
cheap chinese crap.
In article <fkbo3oFqc21U1@mid.individual.net>, Jolly Roger <jollyroger@pobox.com> wrote:
the first thing to try is get rid of the belkin dock. belkin relabels >> > cheap chinese crap.
May be the ultimate solution, but definitely NOT the first thing.
absolutely the first thing to try.
You are suggesting I spend a great deal of money when the answer may be >> something much simpler.
what money?
according to what i found online, that display supports hdmi and minidisplayport.
And according to Dell, it comes with a DisplayPort cable in the box:
<http://www.dell.com/ed/business/p/dell-u2414h/pd>
even better.
total cost: $0
you said your mac is a 2011 macbook pro, which has thunderbolt & mini-displayport in the same connector.
So he can connect it straight to the computer.
if it solves the problem, you know it's the belkin. if not, then
further investigation is needed.
Yep.
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.
You are suggesting I spend a great deal of money when the answer may be
something much simpler.
what money?
according to what i found online, that display supports hdmi and minidisplayport.
And according to Dell, it comes with a DisplayPort cable in the box:
<http://www.dell.com/ed/business/p/dell-u2414h/pd>
even better.
total cost: $0
Well, yes, for diagnosis, that's fine.
But it would mean not having my
external drives connected for a while, which would be a hassle.
If I find the issue annoys me enough (most of the time everything is
fine, but just from time to time it happens), that's what I will have to
try.
Any equipment can fail over the years,, though most fail early if they
are going to fail, so it could be the Belkin or the cables.
But it has been solid until recently, and I think the change occurred
after the upgrade to 10.13.4
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.
nospam <nospam@nospam.invalid> wrote:
In article <fkbo3oFqc21U1@mid.individual.net>, Jolly Roger
<jollyroger@pobox.com> wrote:
the first thing to try is get rid of the belkin dock. belkin relabels >>>>>> cheap chinese crap.
May be the ultimate solution, but definitely NOT the first thing.
absolutely the first thing to try.
You are suggesting I spend a great deal of money when the answer may be >>>>> something much simpler.
what money?
according to what i found online, that display supports hdmi and
minidisplayport.
And according to Dell, it comes with a DisplayPort cable in the box:
<http://www.dell.com/ed/business/p/dell-u2414h/pd>
even better.
total cost: $0
Well, yes, for diagnosis, that's fine. But it would mean not having my external drives connected for a while, which would be a hassle.
If I find the issue annoys me enough (most of the time everything is
fine, but just from time to time it happens), that's what I will have to
try.
Any equipment can fail over the years,, though most fail early if they
are going to fail, so it could be the Belkin or the cables.
But it has been solid until recently, and I think the change occurred
after the upgrade to 10.13.4
There were some extensive graphics subsystem changes in 10.13.4 to
support external GPUs, and I wonder if one of those changes has bitten you?
Chris Ridd <chrisridd@mac.com> wrote:
There were some extensive graphics subsystem changes in 10.13.4 to
support external GPUs, and I wonder if one of those changes has bitten you?
Could be. Do you know how I could test for that.
For the moment I am trying MartinC's suggestion, which is very easy if
it works.
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