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#1 2017-02-25 01:04:49

arandr
Member
Registered: 2017-02-25
Posts: 1

Cannot run X.org on both graphics cards.

Hi, I have a problem with configuration two graphics cards, 4 monitors. I can run X.org on first or 2nd graphics card, but when I try run both graphics cards, all monitors are on, but X.org run only on one graphics. Interestingly that when I press ctrl+alt+f2, new terminal open in monitors 2nd graphics.

Xrandr sees only one graphics outs.


02:06.0 VGA compatible controller: NVIDIA Corporation NV34GL [Quadro NVS 280 PCI] (rev a1)
	Subsystem: NVIDIA Corporation Device 019f
	Kernel driver in use: nouveau
--
03:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTX 550 Ti] (rev a1)
	Subsystem: ASUSTeK Computer Inc. Device 83c2
	Kernel driver in use: nouveau

xorg.conf:

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
   Identifier  "Monitor0"
   HorizSync   30-94
   VertRefresh 48-85
EndSection

Section "Monitor"
   Identifier  "Monitor1"
   HorizSync   30-94
   VertRefresh 48-85
EndSection

Section "Device"
    Identifier             "Card0"
    Driver                 "nouveau"
    BusID                  "PCI:2:6:0"
EndSection

Section "Device"
    Identifier             "Card1"
    Driver                 "nouveau"
    BusID                  "PCI:3:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Card0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Card1"
    Monitor        "Monitor1"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "ServerLayout"
    Identifier  "X.org configured"
    Screen	0   "Screen0"
    Screen	1   "Screen1" RightOf "Screen0"
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
EndSection

Please help.
PS. Sorry for my bad english, and thanks in advance.

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#2 2017-02-25 13:38:53

seth
Member
Registered: 2012-09-03
Posts: 50,012

Re: Cannot run X.org on both graphics cards.

Are you intentionally using nouveau rather than the nvidia blob?
Please paste the xorg log.

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