Pink tint with new external monitor

You say both have the same resolution so no problem at all.

See the answer in context

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Does that 21.5" monitor also have a digital (Display Port, DVI or HDMI) input port..?

 

If so, then you should use one of the digital inputs instead of the old analog input.

If it has Display Port input, you should use a simple Mini DisplayPort to Display Port cable.

 

If it has DVI input, you should use a Mini DisplayPort to DVI adapter and a DVI cable.

 

If it has HDMI input, you should use a Mini DisplayPort to HDMI adapter and a HDMI cable.

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Ok, yes - both are Acers - same generation, connections,  just different screen-sizes.  The 21.5" has a DVI and VGA port. 

As such,  on the Mini (i7 Late 2012)  I have my 23' main monitor connected using:  HDMI>DVI.

 

I was running Tbolt(Mini DisplayPort to VGA on the 21.5" external. 

 

I gather then I need to try strictly going Mini DisplayPort to DVI for the external(2nd) monitor.

 

An update -  I did switch out the VGA cable i was using (a long run - abt. 25 ft) for a heavier-duty one and got

rid of the tint - yet instead of a clean duplication of the main display, i got a "ghosted" display of it - i.e. color

correct but somewhat blurred icons/text -  unfocused... still unusable.  So is it possible going DVI will eliminate that issue?  (Just asking since it entails yet another in a long history of cable purchases - in this case a long-run DVI for the remote monitor). 

 

Thanks for your help!

 

Mike

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Ahaa... OK your using a long cable.

 

Both (DVI & VGA) cables have the potential for signal deterioration and interference the longer they get. For that it is best to use the shortest and best sheilded cable that you can find for your setup.

 

Have a look at > VGA vs. DVI

 

or better yet > All About DVI

 

Both article's tend to suggest that a high quality VGA cable would be best for your setup, because a DVI run that long might require a powered signal booster.

 

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As for color, tent, brightness, contrast..?

 

It does take some time fussing around with both the OS X profiles and Monitor settings to get two display to look the same.

 

I know, because I have matching 21.5" Samsung's that sit right next to each other.

 

Start by using the same OS X Color Profile for both monitors and then fine tune using the monitor(s) menu(s).

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Hi, thanks for your links- much appreciated.  I should've thought about the longer-run possibly causing the degradation or anomalies --  i'm an audio guy and usually a 25-30 foot run isn't an issue -  Acutally i did wind up

ordering a long-run DVI cable ( a 25-foot with decent shielding) so i'll see how that goes -- figured it's worth a try and can always return it

if it fails and try a higher quality long VGA cable per the article(s).

Thanks again,

Mike

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You are welcome!

 

As for the color, tent, brightness, contrast thing...?

 

It does take some time fussing around with both the OS X profiles and Monitor settings to get two display to look the same.

 

I know, because I have matching 21.5" Samsung's sitting right next to each other.

 

Start by selecting the same OS X Color Profile for both monitors and then fine tune using the monitor(s) menu(s).

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Thanks, will take a look at that.. Actually other than that double-vision blur on everything on the remote monitor the color on both seems to match identically but there again, maybe a product of the cable being inferior...

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There is one other question on this if you don't mind.  I wonder if the fact that one is a larger screen-size and the other is a 21.5 size - would possibly make a difference as far as causing this blurred effect on the smaller monitor..  My thought was that so long as both monitors were able to handle identical resolution specs, the screen size was not an issue, that is, a 23 inch master monitor is connected via DVI>HDMI - and the 21.5 inch with the long-run cable to another room - is connected using the MiniDisplayport>VGA cable.  The latter one gets the color right but has a blurred image apperance.

 

Sorry to drag this one out...just trying to explore all considerations in my process of elimination

 

Thanks again!

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No Problem, sorry for not getting back sooner.

 

Yes running two different size monitors in Mirroring Mode, could very well be the problem that you are having.

 

Go to > OS X: How to use multiple displays with your Mac in Mountain Lion and earlier and expand the Video Mirroring section.

 

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Ahh thanks for that.  I was afraid of that possibility... Hmm, maybe have to try and see if i can return the 21 incher to match the 23 inch....  'always something...' !!

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Actually there's another option that came to mind - well, not sure if it is an option or not.  Is there such a thing as a video monitor switch box which would allow me to select between Monitor A and Monitor B - in other words, so it wouldn't really matter what kind of resolution each individual monitor had -  one could be 21 "  and the other a 24" - and all i would be doing is switching the video out to read either one or the other at a time --  then i wouldn't even need to use 'mirroring' AFAIK and it would solve my goal of being able to go into another room and use the display independent of the other one - and vice versa.

 

ANy idea if such a device exists and any reason that wouldn't logically work?

 

Thanks again - and sorry to keep dragging this topic out - just pausing to reflect before i go selling off the 21" monitor to buy a matching 24" one just to get an external monitor to give me the same clear signal as the main monitor. 

 

Regards,

 

Mike

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MIKEinMICH wrote:

 

ANy idea if such a device exists and any reason that wouldn't logically work?

 

Can't say for sure because I haven't personally tried any.

 

Plus then wouldn't you have to run both monitors VGA

 

I have always run dual monitors in Extended Desktop Mode (including a 17" iMac and a 21.5" external monitor) which allows you to choose a different resolution for each monitor.

 

1. What about putting the Display Icon on the Menu bar and then just selecting the correct Resolution for which ever monitor your working at...?

 

2. Or what about running the setup in Extended Desktop Mode and then moving either the open window or even the Menu Bar to the Monitor that you are working at....?

 

For more see > Using Dual Displays on Mac OS X: The Experience

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Try changing the refresh rate in the displays screen! It worked for me!

 

1. System preferences

2. Displays

3. Change resolution to scaled

4. Change refresh rate (I went from 75 to 60 Hertz).

 

Hope this helps anyone!

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最后更新：2017-09-17 18:44:40

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