![连接到 HDMI 端口的双显示器在 Dell Vostro 3750 上未检测到](https://linux22.com/image/1041465/%E8%BF%9E%E6%8E%A5%E5%88%B0%20HDMI%20%E7%AB%AF%E5%8F%A3%E7%9A%84%E5%8F%8C%E6%98%BE%E7%A4%BA%E5%99%A8%E5%9C%A8%20Dell%20Vostro%203750%20%E4%B8%8A%E6%9C%AA%E6%A3%80%E6%B5%8B%E5%88%B0.png)
我正在使用配备 2 个显示器的 Dell Vostro 3750 笔记本电脑。操作系统 Kubuntu 13.04
我连接了 1 个显示器,VGA 接口,工作正常。但另一个连接到 HDMI 端口的显示器无法被检测到。我将 HDMI 显示器连接到我朋友的 Windows 7 笔记本电脑,工作正常。但只有在 Ubuntu 上它才不工作。
lspci -v
输出
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 525M] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell Device 04c6
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f0000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 4000 [size=128]
Expansion ROM at f1000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [b4] Vendor Specific Information: Len=14 <?>
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Kernel driver in use: nvidia
Kernel modules: nvidia_current_updates, nvidia, nouveau, nvidiafb
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device 04c6
Flags: bus master, fast devsel, latency 0, IRQ 51
Memory at f1400000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
xrandr
输出
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767
LVDS1 connected (normal left inverted right x axis y axis)
640x480 59.9
VGA1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 298mm
1920x1080 60.0*+
1680x1050 60.0
1600x900 60.0
1280x1024 75.0 60.0
1280x800 59.8
1152x864 75.0
1280x720 60.0
1024x768 75.1 60.0
832x624 74.6
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
任何帮助,将不胜感激。
答案1
选择Applications
-> System Tools
-> System Settings
->Displays
它应该会显示两台显示器和一台笔记本电脑。
单击笔记本电脑并选择Off
。选择其他两台显示器并选择On
。单击Apply
。
http://s24.postimg.org/p1w3tyo5h/Screenshot_from_2013_04_28_09_36_06.png