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未检测到笔记本电脑内置显示器，双 GPU

tag-icon • tag-icon drivers ati display hardware
未检测到笔记本电脑内置显示器，双 GPU

我的笔记本电脑的内置显示器似乎无法被 Ubuntu 识别。屏幕虽然亮着但还是黑屏。通过 HDMI 连接的外接显示器工作正常。启动时插入也没关系。

我的笔记本电脑是三星 670Z5E（AMD HD8850M + 集成英特尔 GPU）。它运行 Ubuntu 14.04 和 Windows 8.1。我从 AMD 网站安装了专有驱动程序和 Catalyst 控制中心，但没什么区别。

可能存在什么问题？

结果如下lshw -c display：

  *-display               
       description: Display controller
       product: Venus XT [Radeon HD 8870M / R9 M270X/M370X]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:50 memory:e0000000-efffffff memory:f7d00000-f7d3ffff ioport:e000(size=256) memory:f7d40000-f7d5ffff
  *-display
       description: VGA compatible controller
       product: 3rd Gen Core processor Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:47 memory:f7800000-f7bfffff memory:d0000000-dfffffff ioport:f000(size=64)

和xrandr -q：

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
   1280x1024      60.0*+   75.0  
   1152x864       75.0  
   1024x768       75.1     72.0     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     60.0  
   720x400        70.1  
DP1 disconnected (normal left inverted right x axis y axis)

编辑：这里是xorg.conf：

Section "ServerLayout"
    Identifier "amd-layout"
    Screen 0 "amd-screen" 0 0
EndSection

Section "Device"
    Identifier "intel"
    Driver "intel"
    Option "AccelMethod" "uxa"
    BusID "PCI:0@0:2:0"
EndSection

Section "Device"
    Identifier "amd-device"
    Driver "fglrx"
    BusID "PCI:1:0:0"
EndSection

Section "Monitor"
    Identifier "amd-monitor"
    Option "VendorName" "ATI Proprietary Driver"
    Option "ModelName" "Generic Autodetecting Monitor"
    Option "DPMS" "true"
EndSection

Section "Screen"
    Identifier "amd-screen"
    Device "amd-device"
    Monitor "amd-monitor"
    DefaultDepth 24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

答案1

我设法通过从 UEFI 切换到 UEFI/BIOS 解决了这个问题。

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