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View Full Version : [ubuntu] Use MultiGPU(Onboard Intel, Nvidia) with Ubuntu 15.10



keso2
January 22nd, 2016, 07:20 PM
Hi there,

I'm new in Ubuntu and a can't fix a problem with my PC.

I have a PC with a Nvidia GeForce GTX 670 and an Intel I7-3770k CPU. My Graphiccard has only two Ports. One is a HDMI on which I connected my Samsung Monitor and the second is a DVI-I with my EIZO screen. The last screen is also a Samsung and is connected to the VGA Port on the mainboard.

I tried different things but nothing worked:
--The Bios has no setting that deaktivates the CPU GPU and it worked under Windows.
--The Installation of the NVIDIA 352.63 driver didn't help. It locates only the 2 Nvidia connected Screens.
--The X.Org Driver found the third screen but marks it as "Unknown Display" and the it's still black.
--I tried the command nvidia-xconfig --multigpu=on but nothing happened.

Output from my xorg.conf


# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 352.63 (buildmeister@swio-display-x64-rhel04-11) Sat Nov 7 22:00:19 PST 2015

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 352.21 (buildd@lgw01-37) Thu Jul 23 11:50:49 UTC 2015

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

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"
VendorName "Unknown"
ModelName "Eizo CG21"
HorizSync 31.0 - 76.0
VertRefresh 59.0 - 61.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 670"
EndSection

Section "Screen"

# Removed Option "MultiGPU" "on"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-0"
Option "metamodes" "GPU-77d22017-02bf-9d25-3574-889912a5ea32.DVI-I-1: nvidia-auto-select +0+0, GPU-77d22017-02bf-9d25-3574-889912a5ea32.HDMI-0: nvidia-auto-select +1600+0"
Option "BaseMosaic" "on"
Option "MultiGPU" "on"
Option "SLI" "on"
SubSection "Display"
Depth 24
EndSubSection
EndSection



Output from lspci

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 Display controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Z77 Express Chipset LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 670] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
03:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)



I hope someone can help me. Thanks