My external monitor looks awful with the rMBP. What's wrong?

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
What's wrong? Do I need some sort of driver or something? This is a Westinghouse monitor set at 1920x1200. I'm connecting with HDMI.
 

calderone

macrumors 68040
Aug 28, 2009
3,693
148
Seattle
Screenshots rarely if ever capture display issues. Your screenshot looks fine to me.

Visually, what are you experiencing?
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
Screenshots rarely if ever capture display issues. Your screenshot looks fine to me.

Visually, what are you experiencing?
Pixellation, white halos around type, things like that. This display looked perfect hooked up to my last Rev G5. Now it looks like garbage. It hurts my eyes.
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
I would definitely start with the cable.
I tried another cable. That's not it. I just hooked the G5 back up to the monitor and it looks fine now at the exact same resolution. This is a bummer as this machine is meant to be my desktop replacement, but the way it looks hooked up to the monitor is not useable. :(
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
I tried another cable. That's not it. I just hooked the G5 back up to the monitor and it looks fine now at the exact same resolution. This is a bummer as this machine is meant to be my desktop replacement, but the way it looks hooked up to the monitor is not useable. :(
I just hooked the computer up to my HDTV, same problem. Maybe I got a bad HDMI port. Ugh, this is not fun.
 

IGregory

macrumors 6502a
Aug 5, 2012
669
5
Yeah, if I look at the screen shot on the rMBP's screen it looks fine too. Trust me when I tell you guys, it looks awful. There's ghosting all over the place. Maybe the cable is bad?
I think what you are seeing on your external monitor is the retina display effect. I have a 1080P PC desktop. After spending a week on my rMBP I went back to the desktop to transfer files. The difference between the two is clearly apparent. Other posters on this forum have reported the same. Don't expect your external monitor to look the same as the retina - it won't.

I am holding out waiting for the new Mac cinema display. I am hoping it will be retina. Your screenshot, absent retina, is otherwise normal.
 

ivan98

macrumors newbie
Jun 11, 2007
23
0

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
This issue is duplicated at:
https://discussions.apple.com/thread/4080525 shows even the 2012 MacBook Airs are affected.

Current workaround:
  • Any connection to external display made via mDP & HDMI is affected.
  • Any connection to external display made via DVI & VGA is not affected.
So I guess I'm not alone with this. WTF is the problem?
 

xxcysxx

macrumors 6502
Oct 12, 2011
264
0
i dont think hdmi cable or even the interface support anything over 1080p resolution. i know you are using a monitor. but the hdmi might be your culprit. if you want to do 1200 vertical then perhaps you want to use the display port interface since it can support higher resolution. like display port to dvi, but not display port to hdmi. just stay away from hdmi if you want more than 1080 resolution.

or if the hdmi is your prefer method since it carry audio in the same cable then you just have to deal with 1080p resolution.
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
i dont think hdmi cable or even the interface support anything over 1080p resolution. i know you are using a monitor. but the hdmi might be your culprit. if you want to do 1200 vertical then perhaps you want to use the display port interface since it can support higher resolution. like display port to dvi, but not display port to hdmi. just stay away from hdmi if you want more than 1080 resolution.

or if the hdmi is your prefer method since it carry audio in the same cable then you just have to deal with 1080p resolution.
I guess I'll have to try DVI.
 

terraphantm

macrumors 68040
Jun 27, 2009
3,741
557
Pennsylvania
i dont think hdmi cable or even the interface support anything over 1080p resolution. i know you are using a monitor. but the hdmi might be your culprit. if you want to do 1200 vertical then perhaps you want to use the display port interface since it can support higher resolution. like display port to dvi, but not display port to hdmi. just stay away from hdmi if you want more than 1080 resolution.

or if the hdmi is your prefer method since it carry audio in the same cable then you just have to deal with 1080p resolution.
False. I'm typing this on a 1900x1200 monitor over HDMI with my rMBP. The HDMI port on this can actually drive a 2560x1440 monitor as well - I've done it (admittedly, that only worked in Windows. OSX seems to artificially limit the port to 165MHz).

The picture is identical to what I got over displayport in both cases.
 

jedolley

macrumors 68000
Sep 18, 2009
1,780
6
Thunderbolt to DVI did the trick! Thanks everybody! It looks perfect now!
I'd still be concerned that there is an issue with your HDMI port. Prior to getting the TB Display I did HDMI to HDMI and HDMI to DVI on several monitors (some 1920x1200 and 1920x1080) and all the monitors looked fine and not as you described.
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
I'd still be concerned that there is an issue with your HDMI port. Prior to getting the TB Display I did HDMI to HDMI and HDMI to DVI on several monitors (some 1920x1200 and 1920x1080) and all the monitors looked fine and not as you described.
I'm not worried about it. I won't use it. If I need to, I can just go DVI to HDMI.
 

iLukeJoseph

macrumors 6502
Dec 20, 2011
263
0
i dont think hdmi cable or even the interface support anything over 1080p resolution. i know you are using a monitor. but the hdmi might be your culprit. if you want to do 1200 vertical then perhaps you want to use the display port interface since it can support higher resolution. like display port to dvi, but not display port to hdmi. just stay away from hdmi if you want more than 1080 resolution.

or if the hdmi is your prefer method since it carry audio in the same cable then you just have to deal with 1080p resolution.
Um dude, maybe I am misunderstanding what you're saying. But this is one of the worts technical posts I have ever read. HDMI can support much higher than 1080p. HDMI and DVI-D is actually the same on the video side.
 

jedolley

macrumors 68000
Sep 18, 2009
1,780
6
I'm not worried about it. I won't use it. If I need to, I can just go DVI to HDMI.
Regardless of whether you use it or not, it seems wrong that you'd be ok with a possibly bad HDMI port on a $2000+ Macbook. That's just me.
 

leekohler

macrumors G5
Original poster
Dec 22, 2004
14,164
21
Chicago, Illinois
Regardless of whether you use it or not, it seems wrong that you'd be ok with a possibly bad HDMI port on a $2000+ Macbook. That's just me.
If it were a problem for me, I'd worry about it. It's not. Besides, there are other threads about this and it seems the port is not the problem, but rather, drivers. Either way, I have what I need.
 

xxcysxx

macrumors 6502
Oct 12, 2011
264
0
i dont think hdmi cable or even the interface support anything over 1080p resolution. i know you are using a monitor. but the hdmi might be your culprit. if you want to do 1200 vertical then perhaps you want to use the display port interface since it can support higher resolution. like display port to dvi, but not display port to hdmi. just stay away from hdmi if you want more than 1080 resolution.

or if the hdmi is your prefer method since it carry audio in the same cable then you just have to deal with 1080p resolution.
actually, never mind on that. it turns out hdmi 1.4 does indeed support resolution up to 2160p.
 
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