Q: How can I tell whether I have a LG or Samsung screen on my MacBook Pro with Retina display?

It installed Xcode developer tools, something that doesn't ship with OS X normally. It's directly from Apple, no worries!

It installed Xcode developer tools, something that doesn't ship with OS X normally. It's directly from Apple, no worries!

Hi all, i am new to a mac. I have the 15 inch retina. I typed the comand into the terminal app -

1.) the result with:

ioreg -lw0 | grep \"EDID\" | sed "/[^<]*</s///" | xxd -p -r | strings -6

came back with no results

2.) the results with:

ioreg -lw0 | grep "EDID" | sed "/[^<]*</s///" | xxd -p -r

were as follows :

????????0?!xo??UL?%

                   PT?@?4p0 6K??Color LCD

I still have no idea what make my screen is. Any help would be much appreciated :-)

I have the exact same issue.

I am wondering, did Apple remove this so people with LG screens would stop returning their rMBP?

I just purchased the macbook pro retina 13". I tried to check the screen (LG or Samsung) using the directions in this thread but it is still not clear which screen it is.... Any other ideas? Strings?

Here it also don't work

I can confirm that using OS X Mavericks (10.9.1), the below command in fact does display the info needed to descern what TFT you have in your notebook: That's what shows up when I run the command, and given the LSN in the beginning, thankfully I have a Samsung TFT!

ioreg -lw0 | grep "EDID" | sed "/[^<]*</s///" | xxd -p -r | strings -6

Color LCD

LSN154YL01-A01

DLM341503S4FF0QAS

Color LCD

That's what shows up when I run the command, and given the LSN in the beginning, thankfully I have a Samsung TFT!

I have a new MBPr that showed up yesterdy. When I run the commany I don't get any string. Shows me this,

p -r | strings -6

@.`0 6

Color LCD

q8-@X,E

S4Z120######

VX2450 SERIES

Trying Googling "VX2450 SERIES".  Surprise!

Yea....thats my external 23" LED thats hooked up via firewire => DVI

Hehe.  I can confirm that using OS X Mavericks (10.9.2), the below command in fact does not display the info needed to descern what TFT I have in my notebook: That's what shows up when I run the command, so I have no idea which display I have.

ioreg -lw0 | grep "EDID" | sed "/[^<]*</s///" | xxd -p -r | strings -6

Color LCD

That's what shows up when I run the command, so I have no idea which display I have.

I have got the following result:

Color LCD

2A1092WH6JL

What does it mean?

Mine says

     Color LCD

     LP154WT1-SJE1

     DCN417500HHFD4NA6

     Color LCD

Ugh, I was hoping for Samsung but got LG.  I thought the color, contrast, non-dark "blacks," maybe other things seemed horrible which is why I even wondered and then checked.  Very sad same price and no choice.

^So what, LG isn't necessarily bad, depending on how recent your rMBP is & what panel batch it's using, it may in fact have better qualities overall. There's no such thing as SG being better forever, for a period LG had some qualities that made it worse overall, then for a period that switched to SG*. Follow some of the major threads on panel analysis, read through all of them as much as possible, then you'll have a much better perspective. Unsubscribed from this thread now, so apologies in advance for no follow-up responses.

*& for some folks it was the opposite the whole time, because of the things they value most in a display

Thank you, jedlh.  Further research confirmed your statements and calibration tweaked/improved a couple of the features which had concerned me.  The black still is not as black as I hoped, though.