我正在尝试将外部 HDMI 显示器插入我的笔记本电脑，但未检测到...
系统：Ubuntu 14.04 处理器：Intel® Core™ i7-6820HQ CPU @ 2.70GHz × 8 显卡：Quadro M2000M/PCIe/SSE2
输出xrandr：
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 16384 x 16384
DP-0 disconnected primary (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)
eDP1 connected 3840x2160+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
3840x2160 60.0*+
2048x1536 60.0
1920x1440 60.0
1856x1392 60.0
1792x1344 60.0
1920x1200 60.0
1920x1080 59.9
1600x1200 60.0
1680x1050 60.0 59.9
1600x1024 60.2
1400x1050 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
输出sudo lshw -C display：
*-display
description: VGA compatible controller
product: GM107GLM [Quadro M2000M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:133 memory:c3000000-c3ffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:4000(size=128) memory:c4000000-c407ffff
*-display
description: VGA compatible controller
product: HD Graphics 530
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915_bpo latency=0
resources: irq:131 memory:c2000000-c2ffffff memory:60000000-6fffffff ioport:5000(size=64)
我的xorg.conf：
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
任何帮助，将不胜感激。谢谢！