您好，更新 Nvidia GTX 970 驱动程序后我遇到了问题。
硬件配置：内存 16GB 类型：DDR3 intel i7 4430 K SSD 2x GoodRam w RAID 0 madadm Nvidia GeForce GTX 970 显示设备：DFP-4 (DFP-4)、Samsung S22B300 (DFP-0) 运行不正常 DFP-4 未知显示器（这是 Philips 220WS）
出现错误之前一切都很好内核 3.13.0.-39 和 NVIDIA 驱动程序版本：343.36 驱动程序更改 NVIDIA 驱动程序版本：346.47 从现在开始，无论我做什么，我的 xrandr 都看不到我的第二台显示器，我只得到这个并且无法设置正确的分辨率。
我尝试过降级驱动程序（之前清除 nvidia），我使用手册和互联网手动制作了 X11/xorg.conf
nvidia-settings 看不到除 800x600 以外的其他分辨率，并且 hz 值较低，如 63+
xrandr -q
Screen 0: minimum 8 x 8, current 2720 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
1920x1080 60.0*+ 50.0
1680x1050 60.0
1600x900 60.0
1440x900 59.9
1280x1024 75.0 60.0
1280x800 59.8
1280x720 60.0 50.0
1152x864 75.0
1024x768 75.0 70.1 60.0
800x600 75.0 72.2 60.3 56.2
720x576 50.0
720x480 59.9
640x480 75.0 72.8 59.9
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected 800x600+1920+480 (normal left inverted right x axis y axis) 0mm x 0mm
800x600 60.3*+
Unknown-0 disconnected (normal left inverted right x axis y axis)
我的 xorg.conf
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 346.47 (buildmeister@swio-display-x86-rhel47-01) Thu Feb 19 19:18:25 PST 2015
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
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"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Samsung S22B300"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Philips"
HorizSync 30.0 - 81.0
VertRefresh 50.0 - 60.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 970"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-0"
Option "metamodes" "DVI-I-1: 1920x1080 +0+0"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device0"
Monitor "Monitor1"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-4"
Option "metamodes" "DVI-D-0: 1600x900_60 +1920+0 {viewportin=1600x900}"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
重启后，无论如何它总是回到 800x600。
请帮忙，无法恢复。现在我使用的是 346.47 驱动程序