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MacBook Pro Retina + DP + Dell = OS X driver issues!

netnothing

netnothing

macrumors 68040
Mar 13, 2007
3,806
415
NH
Just picked up a Dell U2713HM and surprisingly, after hooking up to my Mac Pro or my MacBook Air, both running Mavericks and using the Mini DP to DP cable.....the display defaults to RGB....not YcBcR.

It does still show up as Television in Sys Info.....can't imagine that is bad though right? As long as the Dell menu says RGB?

Will the 59 Hz cause any issues?

DELL U2713HM:
Resolution: 2560 x 1440 @ 59 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Connection Type: DisplayPort
Television: Yes

-Kevin
 
Last edited:
grandM

grandM

macrumors 68000
Oct 14, 2013
1,508
298
kbmb said:
Just picked up a Dell U2713HM and surprisingly, after hooking up to my Mac Pro or my MacBook Air, both running Mavericks and using the Mini DP to DP cable.....the display defaults to RGB....not YcBcR.

It does still show up as Television in Sys Info.....can't imagine that is bad though right? As long as the Dell menu says RGB?

Will the 59 Hz cause any issues?

DELL U2713HM:
Resolution: 2560 x 1440 @ 59 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Connection Type: DisplayPort
Television: Yes

-Kevin
Click to expand...

I 'm seeing the same on my setup
Totally confused: must I run the hack or not
 
netnothing

netnothing

macrumors 68040
Mar 13, 2007
3,806
415
NH
grandM said:
I 'm seeing the same on my setup
Totally confused: must I run the hack or not
Click to expand...

I haven't run anything.....figure if it's RGB then it's good enough for me. Haven't noticed any issues with it listed as TV.

-Kevin
 
grandM

grandM

macrumors 68000
Oct 14, 2013
1,508
298
kbmb said:
I haven't run anything.....figure if it's RGB then it's good enough for me. Haven't noticed any issues with it listed as TV.

-Kevin
Click to expand...
I ran it
Screen looks even better now
Well could be imagining it :d
 
netnothing

netnothing

macrumors 68040
Mar 13, 2007
3,806
415
NH
grandM said:
I ran it
Screen looks even better now
Well could be imagining it :d
Click to expand...

I guess I should have said I'm not running anything. I did try the hack, but didn't notice a difference. I'm pretty sure the only thing the hack does is force RGB mode.....which if the display is already in that mode, then it shouldn't make a difference.

-Kevin
 
N

nevioth

macrumors newbie
Jun 25, 2014
1
0
u2713hm / mbpr

I just got a dell u2713hm and am not able to use it at all with my macbook pro and dp / map cable. The monitor is not getting any signal from the macbook.

the monitor works, dvi to dp is getting the (low-res) signal through, but i really hoped to use the dp-mdp cable since i can't afford to shell out another 100eur for a dual link dvi adapter

Does anyone know what to do? :(
 
U

UnexpectedHuman

macrumors member
Jul 5, 2009
35
25
Europe
I had something like this with when I set up my laptop with an ASUS PB278. It turned out that the macOS video drivers insist on sending YCbCr rather than RGB.

The fix for me was to follow the instructions here:

http://www.mathewinkson.com/2013/03...ix-the-picture-quality-of-an-external-monitor

Under the latest OS, you will need to disable SIP to install the patched EDID override file (google csrutil enable/disable). I only needed to disable SIP while making the modification - I reenabled it afterwards.

The irony was that I had made the same fix on my (much) older laptop, but had completely forgotten that it needed to be done...
 
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