问题
这是xrandr的结果：
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
LVDS2 connected 1024x768+0+0 (normal left inverted right x axis y axis) 293mm x 164mm
1366x768 60.0 +
1360x768 59.8 60.0
1024x768 60.0*
800x600 60.3 56.2
640x480 59.9
VGA2 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0*
800x600 60.3 56.2
848x480 60.0
640x480 59.9
DP1 disconnected (normal left inverted right x axis y axis)
lspci -v (仅关于vga的部分)：
01:00.0 VGA compatible controller: NVIDIA Corporation G98M [GeForce G105M] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 142e
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 f1080000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nvidia, nouveau, nvidiafb
最后xorg.conf (现在移除)：
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 295.40 (buildmeister@swio-display-x86-rhel47-06.nvidia.com) Thu Apr 5 22:40:54 PDT 2012
Section"ServerLayout"
Identifier"Layout0"
Screen 0"Screen0" 0 0
InputDevice"Keyboard0""CoreKeyboard"
InputDevice"Mouse0""CorePointer"
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"Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option"DPMS"
EndSection
Section"Device"
Identifier"Device0"
Driver"nvidia"
VendorName"NVIDIA Corporation"
EndSection
Section"Screen"
Identifier"Screen0"
Device"Device0"
Monitor"Monitor0"
DefaultDepth 24
SubSection"Display"
Depth 24
EndSubSection
EndSection
nvidia设置错误：
![nvidia-settings error][2]
lshw -C video:
*-display
description: VGA compatible controller
product: G98M [GeForce G105M]
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=nouveau latency=0
resources: irq:16 memory:f0000000-f0ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:4000(size=128) memory:f1080000-f10fffff
*-display
description: Display controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:45 memory:f1400000-f17fffff memory:e0000000-efffffff ioport:50f0(size=8)
答案1
你的问题是，你有2个显卡：GeForce G105M和intel集成显卡，是"Nvidia混合显卡"，它是Linux下的噩梦。
唯一的解决方案是，禁用其中一个GPU，然后为另一个GPU安装正确的驱动程序。