5K light bleed (and lag)

BJB Productions

macrumors 65816
Original poster
Nov 10, 2008
1,305
131
Just got my Retina iMac and I'm terribly discouraged by issues already... Not only light bleed but it's also slower than my 2011 Macbook Pro with some tasks. It must be due to the amount of pixels that are being rendered.

Here's a pic of the light bleed:
 

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tillsbury

macrumors 65816
Dec 24, 2007
1,406
306
Don't know what to suggest re: performance. I've come from a maxed-out 2.6GHz retina MBP (2012) and this beats the pants off it...
 

redheeler

macrumors 604
Oct 17, 2014
7,398
6,965
Just got my Retina iMac and I'm terribly discouraged by issues already... Not only light bleed but it's also slower than my 2011 Macbook Pro with some tasks. It must be due to the amount of pixels that are being rendered.

Here's a pic of the light bleed:
Wow that's pretty bad... looks even worse than mine. Very common issue on these, every one seems to have a little backlight bleed.

Don't know what to suggest re: performance. I've come from a maxed-out 2.6GHz retina MBP (2012) and this beats the pants off it...
Same here ;)
 

Chuck Rodent

macrumors regular
Jan 9, 2014
109
44
That is pretty much what I saw on the 5k iMac in the Apple store when deciding whether to buy or not. Try it with a grey bar screen as well.
 

FredT2

macrumors 6502a
Mar 18, 2009
556
96
Just got my Retina iMac and I'm terribly discouraged by issues already... Not only light bleed but it's also slower than my 2011 Macbook Pro with some tasks. It must be due to the amount of pixels that are being rendered.

Here's a pic of the light bleed:
What are the test conditions that you set up to get the screen to look like that? If I set the screen brightness to maximum and display a black background, I see a very faint amount of light in one corner. With brightness at viewing level, I see no leakage at all. This might be the best display I've owned for uniformity and light bleed.
 

WilliamG

macrumors G3
Mar 29, 2008
8,990
2,400
Seattle
I'd be willing to bet all Retina iMacs have some light bleed. It's really not noticeable 99.9% of the time, in normal viewing environments. The only time I really notice it is if the lights are pretty much off in the room I use mine, and I crank the brightness to max and view a black screen or very dark material.
 

macmee

Suspended
Dec 13, 2008
835
1,089
Canada
Mine is also a gusher:




My SP3 is the same story. It's either harder to prevent leaks on high pixel displays, or manufacturers have gotten lazier because this never used to be a problem for me.
 

robgendreau

macrumors 68040
Jul 13, 2008
3,286
229
I've had a bit in other iMacs, and other 2560 panels.

Don't seem to have it on my current riMac.

Wonder what causes it? Definitely reason to get a replacement IMHO.
 

redheeler

macrumors 604
Oct 17, 2014
7,398
6,965
I've had a bit in other iMacs, and other 2560 panels.

Don't seem to have it on my current riMac.

Wonder what causes it? Definitely reason to get a replacement IMHO.
Are you sure you don't have any backlight bleed? Mine has some, enough to be noticeable unfortunately. Not that I haven't been contemplating getting a replacement, but a replacement is just as likely to have this same problem.
 

WilliamG

macrumors G3
Mar 29, 2008
8,990
2,400
Seattle
I've had a bit in other iMacs, and other 2560 panels.

Don't seem to have it on my current riMac.

Wonder what causes it? Definitely reason to get a replacement IMHO.
No it's not. Pretty much all of them do it (if not all). Some people are more sensitive to it than others, and some displays are worse than others.

99% of the time the issue isn't visible.
 

gsingham

macrumors 6502
Oct 20, 2013
259
42
the first screen looks really bad.

Macmee: You have got to be kidding, if thats the only amount of light bleed then you should seriously be happy with it.

After waiting 2 weeks, I got my iMac full specs retina and light bleed in the right top and bottom. Also what seems like marks under the screen panel most obvious when I drag windows left and right. eg.) safari with a white background. I'm not sure what it is.

http://tinypic.com/view.php?pic=1057adg&s=8#.VFmQModURMA

Heres at full brightness

No lag whatsoever though. Great with maximum scaling and smooth at retina setting of 2560
 

macmee

Suspended
Dec 13, 2008
835
1,089
Canada
the first screen looks really bad.

Macmee: You have got to be kidding, if thats the only amount of light bleed then you should seriously be happy with it.

After waiting 2 weeks, I got my iMac full specs retina and light bleed in the right top and bottom. Also what seems like marks under the screen panel most obvious when I drag windows left and right. eg.) safari with a white background. I'm not sure what it is.

http://tinypic.com/view.php?pic=1057adg&s=8#.VFmQModURMA

Heres at full brightness

No lag whatsoever though. Great with maximum scaling and smooth at retina setting of 2560
I'm not returning it or anything, I just mean for the price we paid it's a damn shame there's this bleed, which I never experienced on lower resolution monitors from apple in the past, or on the rmbp.

Mostly it's annoying to me that some of us spent $4k on these and they were made in China and have faults in the displays, pretty lame.
 

gsingham

macrumors 6502
Oct 20, 2013
259
42
I'm not returning it or anything, I just mean for the price we paid it's a damn shame there's this bleed, which I never experienced on lower resolution monitors from apple in the past, or on the rmbp.

Mostly it's annoying to me that some of us spent $4k on these and they were made in China and have faults in the displays, pretty lame.
agree. mine came up to about $5300 australian dollars. I would expect near perfection. When I first heard assembled in USA I was so glad and then found out they were being shipped out of china.

I have requested a new set and they have agreed. I was insistent that someone verify the screen was free from all deformities before sending it out to me.
 

Serban

Suspended
Jan 8, 2013
5,160
920
agree. mine came up to about $5300 australian dollars. I would expect near perfection. When I first heard assembled in USA I was so glad and then found out they were being shipped out of china.

I have requested a new set and they have agreed. I was insistent that someone verify the screen was free from all deformities before sending it out to me.
where you made this requested thing regarding the screen?
 

leenak

macrumors 68020
Mar 10, 2011
2,412
50
agree. mine came up to about $5300 australian dollars. I would expect near perfection. When I first heard assembled in USA I was so glad and then found out they were being shipped out of china.

I have requested a new set and they have agreed. I was insistent that someone verify the screen was free from all deformities before sending it out to me.
I know Americans! I would probably rather have Chinese do it ;)
 

rainydays

macrumors 6502a
Nov 6, 2006
886
0
Mostly it's annoying to me that some of us spent $4k on these and they were made in China and have faults in the displays, pretty lame.
The fact that something is made in China doesn't say anything about the quality. If Apple were to demand and pay for a certain quality then they would get it.
I have high quality gear that was made in China. It's not like they are bad at what they do, only that they often do not get the chance.
 

crashoverride77

macrumors 65816
Jan 27, 2014
1,234
203
Just got my Retina iMac and I'm terribly discouraged by issues already... Not only light bleed but it's also slower than my 2011 Macbook Pro with some tasks. It must be due to the amount of pixels that are being rendered.

Here's a pic of the light bleed:
Im sure the camera exaggerates a bit but that black light bleeding on the right picture is the worst I have ever seen. I replaced my late 2012 rMBP (perfect screen) with the late 2013 rMBP and that had some bad backlight bleeding but nothing compared to yours. Mine was even noticable at 50% brightness so I took a picture and got the screen replaced at the genius bar, for free. I'm glad I took a picture since it's impossible to show them in the brightly lit Apple stores. The genius immediately, after seeing the picture, said that the bleed was too excessive. They will probably die when they see yours. Wow
Again all LCD normally have light leake in some form but yours is just insane. Exchange now
 

BJB Productions

macrumors 65816
Original poster
Nov 10, 2008
1,305
131
Those pics I posted were on a black background, 50% brightness. I'm actually returning the unit. Between the backlight issues and the lag, it's not worth it to me. The machine cost way too much to have these kinds of issues.
 

crashoverride77

macrumors 65816
Jan 27, 2014
1,234
203
Those pics I posted were on a black background, 50% brightness. I'm actually returning the unit. Between the backlight issues and the lag, it's not worth it to me. The machine cost way too much to have these kinds of issues.
With 50% only, WOW. Than its 's by far the worst one I have ever seen, in regards to backlight bleeding. Get your exchange and don't forget to bring those pictures into the shop since it's hard to show them there.
I exchanged my iPad air 2 today for excessive backlight bleeding and they done an exchange after I showed them a picture (below), no questions asked. Their service as usual was amazing, I imagine especially when you will go with a very expensive 5k iMac.
The lag might be some optimisation problem in Yosemite, similar to when the first rMBP were released. They also lagged in the beginning but I'm not sure how bad your lag is, maybe it is a hardware defect.
 

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