Arch Linux

thoth

Member

Registered: 2010-01-10

Posts: 79

Multi-head nvidia and intel at the same time

I have an MSI GS70 with two monitors connected to the two display ports.  In ubuntu xenial with the nvidia proprietary drivers I have all three working just fine, with no configuration from me (I'll paste the xorg.conf I found in /etc/X11 below).  Now when I boot arch with this same xorg.conf the intel card (and the laptop monitor) show me the gdm login screen, but when I log in the the intel card turns off and the two external monitors turn on.  If I delete /etc/X11/xorg.conf then the external monitors stay dark and the laptop screen stays on.  Here is the xorg.conf from xenial:

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    BusID "PCI:0@0:2:0"
    Option "AccelMethod" "None"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:1@0:0:0"
    Option "ConstrainCursor" "off"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "on"
    Option "IgnoreDisplayDevices" "CRT"
EndSection

xrandr from when the xorg.conf is being used:

$ xrandr -q
Screen 0: minimum 8 x 8, current 2048 x 1280, maximum 16384 x 16384
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected primary 1024x1280+1024+0 left (normal left inverted right x axis y axis) 376mm x 301mm
   1280x1024     60.02*+  75.02  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
DP-2 connected 1024x1280+0+0 left (normal left inverted right x axis y axis) 376mm x 301mm
   1280x1024     60.02*+  75.02  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
DP-3 disconnected (normal left inverted right x axis y axis)

Any clue as to how I can get both to work?  I feel like I've tried all the combinations the wiki mentions, both with bumblebeed and without.  Of note, in xenial I am not using bumblebeed, the laptop no longer has a battery and is always plugged in so power management is not an issue.6