Ubuntu 12.04 双显示器以前可用但现在不可用

Ubuntu 12.04 双显示器以前可用但现在不可用

我正在使用NVIDIA GT218但无法看到我的显示器"Display Settings",以下信息可能会有所帮助

# lspci 
00:02.0 Display controller: Intel Corporation Device 041e (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)

主显示器已连接并且GT218正在工作但没有显示Intel,有趣的是Ctrl+Alt+F1 to F6 (tty displays)正在工作Intel但没有显示NVIDIA

# lshw -c video
  *-display               
       description: VGA compatible controller
       product: GT218 [GeForce 210]
       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:16 memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:f7000000-f707ffff
  *-display
       description: Display controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 06
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm bus_master cap_list
       configuration: driver=i915 latency=0
       resources: irq:47 memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64)

/etc/X11/xorg.conf是空白

nvidia-设置不显示两个显示器arandr

# xrandr
Screen 0: minimum 8 x 8, current 1440 x 900, maximum 8192 x 8192
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1440x900+0+0 (normal left inverted right x axis y axis) 410mm x 256mm
   1440x900       59.9*+   75.0  
   1280x1024      75.0     60.0  
   1024x768       75.0     70.1     60.0  
   800x600        75.0     72.2     60.3     56.2  
   640x480        75.0     72.8     59.9  
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)

目前,第二显示器(英特尔)只是空白的,并且仅打开 tty 控制台。

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