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M4800: not all are built the same (LVDS vs. eDP)

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Hi guy!

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Today i will talk about M4800.

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Multi-Prototype:

May be all people don't know or don't care: "M4800 have 2 prototype of Motherboard" <--- it's the dead point that i discovery.Β 

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Prototype 1:Β Dell Motherboard LVDS TRPM M4800Β (full lucky):

+ use LVDS for internal Display (with max resolusion is Full HD)

+ can disable Switch Graphics (run only Quadro/Firepro) full performance, full external port.

+ if don't want Quardo/Firepro can run with optimus.

---> Replace Wifi + upgrade WWAN/mSata SSD ----> a monster of Workstation Mobile.

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Prototype 2: Dell Motherboard EDP TRPM M4800:

+ use eDP for internal Display - eDP full HD / HD+ (not so lucky):

+ can not disable Switch Graphics. (black screen)

+ cannot export sigal to HDMI/DP/VGA

+ internal Display use intelHD 4600

+ Quadro/Firepro can use for any Software use Cuda/OpenGL for render/editor. (can disable Quadro/Firepro by DSDT).

---> Replace wifi + upgrade WWAN/mSata SSD ----> a monstar too ( but smaller than Prototype 1).

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i'm not sure but may be Prototype 3 for 4K display use DP (don't have intelHD4600):

+ use DP for internal Display - that may be good if can inject monitor by some key or may be bad because don't have intelHD 4600

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How check:

Use Ubuntu Live:

command is: Xrandr

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<image updating>

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Check VBIOS

<image updating>

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Use Aida64 report

<image updating>

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Prototype 1: install OSX very very easy.

Prototype 2 (is my M4800): very very easy with enable Switch Graphics. (not talk about it).

let's talking about disbale Switch Graphics! - big issuse with black screen.

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.... updating......

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next day i will update more. ...

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more image, more infomation, and more about same hardware (M6800, Zbook 15 Dream Color, 8570w Dream Corlor, ROG 120Hz 3D screen ... ).

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thanks for watching.

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I have the 4K screen, Β can get both HDMI / and external DP port to work using the Nvidia Web Drivers, but never the internal display. Β I want to tackle this by trying to modify the NVDA configuration but cannot get the correct configuration.

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Hi, as I see, you have Dell M4800 with no Switchable graphics option.Β 
Could you post your BIOS version or Service Tag NO of your mobile workstation?
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On my M4800 I have Switchable Graphics option, I use latest version of BIOS, it is A16 from here

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OK. I think, that BIOS A16 and also the older versions are the same for both types of M4800 motherborad.

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So now, how the Mac OS works on your M4800? It is possible to run only with external monitor? And your internal 4k display doesn't work?

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Hi!

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I have just that same issue. My M4800 doesn't have Nvidia Optimus option and I have the QHD+ screen. Sgilbert, could you get the internal screen to work? Β Thank you!

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