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Dell Precision M4800 (i7-4800MQ) Help


Hamish Claxton

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Im stuck.

 

I followed rampage's method 3 for the 900 series Nvidia for DSDT injection. because there is no mention of the K1100M.

 

This method has inject nvidia = false in clover config, I don't know if that is correct.
 

I have not found out yet how to set the boot-display-port number.

 

When I try to boot with the injected DSDT and remove the nv_disable=1, then i get BLACK screen.

 

Ill keep looking for the boot display port option.

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So from your signature you have the 1920x1080 display on the m4800,  I have the QHD+ display and I believe this is connected through eDP port only so I cannot use Intel Graphics.

 

Am I missing something.  In one of the above posts I saw someone with this laptop and the QHD+ display working on built-in.  

 

I am trying the clover injection, and I can change the boot-display, but everytime it boots to black screen.

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Here are the results from
xrandr --listproviders
 
Providers: number : 1
Provider 0: id: 0x2d9 cap: 0x1, Source Output crtcs: 4 outputs: 8 associated providers: 0 name:NVIDIA-0
 
Here are the results from
xrandr
 
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 16384 x 16384
VGA-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
   3840x2160      60.0*+   48.0  
DP-5 disconnected (normal left inverted right x axis y axis)
DP-6 disconnected (normal left inverted right x axis y axis)

 

+ xrandr --listproviders say DP-4 connect to your internal display

+ Can  eDP  support with QHD+ display ? I don't think so.

Why QHD+ system do not have intelHD (optimus enable):

+ intel HD 4600 can not support with QHD+ resolusion -> the main reason for Dell disable optimus.

+ nvidia K1100M can support with 4 display 4k 

 

i sure your system easyer more than my system because Real Mac not support with eDP ( only support with LVDS, HDMI, DP, DVI ).

 

my connector is eDP :

920678_974956989237013_60921175462317786

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It appears that Linux Mint provides a different output than Ubuntu Live.

 

Here is my xrandr output from Ubuntu Live

 

Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 8192 x 8192

DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
eDP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
   3840x2160     60.00*+  48.02  
   1920x1200     59.88  
   1920x1080     59.96  
   1600x1200     59.87  
   1680x1050     59.95  
   1400x1050     59.98  
   1280x1024     59.89  
   1280x960      59.94  
   1152x864      59.96  
   1024x768      59.92  
   800x600       59.86  
   640x480       59.38  
   720x400       59.55  
   640x400       59.95  
   640x350       59.77  
DP-3 disconnected (normal left inverted right x axis y axis)
VGA-1 disconnected (normal left inverted right x axis y axis)
 
 
Here is my List providers from Ubuntu Live
 
Providers: number : 1
Provider 0: id: 0x68 cap: 0x1, Source Output crtcs: 4 outputs: 5 associated providers: 0 name:nouveau
 
 
So I also have my display connected to the eDP port as you do.
 
Any thoughts, I don't know if there is a way for mac to use eDP port, with nvidia. If I connect to HDMI everything is working, or if I disable nvidia I can get my laptop screen to have picture, just not accelerated graphics everything is choppy and only at low resolution.
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If you disable nVidia discrete GPU, I guess you fallback on the integrated Intel HD GPU. i7-4710MQ is Haswell CPU with HD4600 integrated graphics, so you will gain graphics acceleration by:

  1. forcing your HD4600 id from mobile 0416 to desktop 0412 (DSDT patch or Clover overwriting for instance)
  2. use Rehabman's Fake PCI id kexts (use FakePCIID + FakePCI_Intel_HD_Graphics + FakePCI_Intel_HDMI_audio kexts)
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My mistake I forgot to mention that you need to specify the correct Azul frame buffer too. In the case of a laptop, the correct AzulFB to use is usually 0x0a260006, i.e. #12. If you boot with Chameleon/Enoch, you may experiment with boot loader option IntelAzulFB=xx where xx is in the range 0 to 15. With Clover, you specify the FB with parameter ig-platform-id in hexadecimal string.

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