Xorg 服务器配置失败 - 未检测到屏幕

Question

我在 ubuntu 12.04（使用 nvidia 420M GT 卡）上的 Xorg 服务器存在严重问题。

在家里，我使用连接到笔记本电脑 HDMI 端口的外接显示器 - 外接显示器用作扩展。但是当我离开家去上班时，我不再使用它，但我的 xorg 的配置文件保持原样，然后发生了一些不好的事情。例如 - 每次在断开外部显示器后启动时，我都会得到一些非默认字体并且比平时更大 + 一些窗口出现关于不兼容分辨率模式的错误。

但是今天我尝试在没有额外显示器的情况下正常启动，但 xorg 服务器出现故障，我无法启动到 GUI。我收到这个

[   101.830] 
X.Org X Server 1.11.3
Release Date: 2011-12-16
[   101.831] X Protocol Version 11, Revision 0
[   101.831] Build Operating System: Linux 2.6.42-26-generic x86_64 Ubuntu
[   101.831] Current Operating System: Linux ICANSEEYOU 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64
[   101.831] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=1384cee0-6a71-4b83-b0d3-1338db925168 ro recovery nomodeset
[   101.831] Build Date: 16 July 2012  08:06:31PM
[   101.832] xorg-server 2:1.11.4-0ubuntu10.6 (For technical support please see http://www.ubuntu.com/support) 
[   101.832] Current version of pixman: 0.24.4
[   101.832]    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[   101.832] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   101.834] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Jul 23 09:48:40 2012
[   101.834] (==) Using config file: "/etc/X11/xorg.conf"
[   101.834] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   101.834] Parse error on line 7 of section ServerLayout in file /etc/X11/xorg.conf
    " -reen0" is not a valid keyword in this section.
[   101.835] (EE) Problem parsing the config file
[   101.835] (EE) Error parsing the config file
[   101.835] 
Fatal server error:
[   101.835] no screens found
[   101.836] 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
[   101.836] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   101.836] 
[   101.836]  ddxSigGiveUp: Closing log
[   101.836] Server terminated with error (1). Closing log file.

我还收到错误，提示已检测到屏幕，但没有一个屏幕具有正确的配置文件，但随后我尝试将 xorg 重置为其默认值（在故障安全模式下）

sudo dpkg-reconfigure xserver-xorg

（我没有输出形式），现在我坚持这个。老实说 - 我在尝试登录failsafe模式时遇到此错误，并在尝试正常启动时获取 ubuntu 启动图像。

这是我的配置文件xorg.conf：

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 295.33  (buildd@allspice)  Fri Mar 30 13:37:33 UTC 2012


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" -1920 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      "LGD"
    HorizSync       30.0 - 75.0
    VertRefresh     60.0
    Option         "DPMS"
EndSection

Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Acer P215H"
    HorizSync       31.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 420M"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 420M"
    BusID          "PCI:1:0:0"
    Screen          1
EndSection

Section "Screen"

# Removed Option "TwinView" "0"
# Removed Option "TwinViewXineramaInfoOrder" "DFP-0"
# Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0"
# Removed Option "TwinView" "1"
# Removed Option "metamodes" "DFP-0: nvidia-auto-select +1920+0, DFP-1: nvidia-auto-select +0+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinViewXineramaInfoOrder" "DFP-1"
    Option         "TwinView" "0"
    Option         "metamodes" "nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "DFP-1: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

这是我的 xorg.conf.failsafe

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "vesa"
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
EndSection

Answer 1

好了，我已经重新安装了xserver-xorg与apt-get再删除~/.config/monitors.xml文件，现在一切工作正常。:)

（监视器文件就像连接外部显示器后的工件，它以某种方式存储设置并在您切换回一种显示模式时导致问题http://ubuntuforums.org/showthread.php?t=1917220）