Xorg setup for 2 video cards and 1 monitor

nesk · 2016-10-21 13:29:20

Hi,
My hardware setup is 2 video cards (1 integrated Intel, 1 discrete Nvidia). Intel is connected to a monitor via HDMI, Nvidia is connected to the same monitor via DVI. There's also internal monitor wired to Intel via eDP-1 output (you can see it in outputs below).
What I want to be able to do is to have 2 available outputs in ARandR so I can e.g. switch X output from (Intel->HDMI) to (Nvidia->DVI) and then manually choose input port on the hardware monitor.
I'm starting X with just startx - disabled lightdm to eliminate it as a factor.
After reading Multihead article here's Xorg config I'm currently at. Some options are adopted from nvidia-xconfig output. I have 2 entries for monitors, because I want it to run at 144Hz when signal is from Nvidia and at 60Hz when signal is from Intel (Intel card can't output 144Hz).

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "ServerLayout"
	Identifier "layout"
	Screen 0 "Screen0_nvidia" 0 0
	# Inactive "IntelHD5500"
	Screen 1 "Screen1_intel" RightOf "Screen0_nvidia"
	Option "Xinerama" "0"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor144Hz"
    VendorName     "Unknown"
    ModelName      "AOC G2460"
    HorizSync       30.0 - 160.0
    VertRefresh     50.0 - 146.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "MonitorAuto"
    Option         "DPMS"
EndSection

Section "Device"
	Identifier "GTX1060"
	Driver "nvidia"
	VendorName "NVIDIA Corporation"
	BoardName "GeForce GTX 1060 6GB"	
	BusID "PCI:2:0:0"
EndSection

Section "Device"
	Identifier "IntelHD5500"
	Driver "modesetting"
	BusID "PCI:0:2:0"
EndSection

Section "Screen"
    Identifier     "Screen0_nvidia"
    Device         "GTX1060"
    Monitor        "Monitor144Hz"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "1920x1080_144 +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1_intel"
    Device         "IntelHD5500"
    Monitor        "MonitorAuto"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

lspci:

[username@arch ~]$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
02:00.0 VGA compatible controller: NVIDIA Corporation GP106 [GeForce GTX 1060] (rev a1)

It behaves as follows:

On Arch boot video output (with tty2 login) goes to Intel->HDMI
I log in to tty2, run startx, HDMI screen goes black (but there's a HDMI signal - monitor does not power down)
After switching input port to DVI on the monitor I see my usual Openbox session

The problem is that ARandR shows only DVI-D-0 as selectable output. Here's what xrandr shows:

[username@arch ~]$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x1b9 cap: 0x1, Source Output crtcs: 4 outputs: 8 associated providers: 0 name:NVIDIA-0
[username@arch ~]$ xrandr --screen 0
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00 + 144.00*  119.98    99.93  
   1680x1050     59.88  
   1440x900      59.90  
   1280x1024     75.02    60.02  
   1280x720      59.86  
   1024x768     119.99   100.00    75.03    70.07    60.00  
   800x600      119.97   100.00    75.00    72.19    60.32    56.25  
   640x480      120.01    99.99    75.00    72.81    59.94  
HDMI-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 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
[username@arch ~]$ xrandr --screen 1
Screen 1: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192
eDP-1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 173mm
   1366x768      60.07*+  48.04  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   800x600       60.00    60.32    56.25  
   700x525       59.98  
   640x512       60.02  
   640x480       60.00    59.94  
   512x384       60.00  
   400x300       60.32    56.34  
   320x240       60.05  
HDMI-1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+  50.00    59.94  
   1920x1080i    60.00    50.00    59.94  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x720      60.00    50.00    59.94  
   1024x768     119.99    99.97    75.03    70.07    60.00  
   832x624       74.55  
   800x600      119.97    99.99    72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480      119.99   100.00    75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)

So apparently outputs to Intel are "active", but I get only blank screen on them.

I'm probably missing some basic understanding of X. What should be fixed with this config to be able to switch X outputs between (Intel->HDMI) and (Nvidia->DVI)?

Last edited by nesk (2016-10-21 13:30:23)

Arch Linux

#1 2016-10-21 13:29:20

Xorg setup for 2 video cards and 1 monitor

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