我最近从我的 ubuntu 14.04.2 笔记本电脑中删除了 fglrx 驱动程序，因为我注意到它对电池寿命不太好。
但重新启动后，我看到了这个屏幕（加载 ubuntu 徽标之后）：
尝试执行命令时
startx
我明白了：
内容/etc/x11/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
内容/var/log/Xorg.0.log
[ 158.865]
X.Org X Server 1.16.0
Release Date: 2014-07-16
[ 158.867] X Protocol Version 11, Revision 0
[ 158.868] Build Operating System: Linux 3.2.0-70-generic x86_64 Ubuntu
[ 158.871] Current Operating System: Linux 7h3 3.16.0-34-generic #47~14.04.1-Ubuntu SMP Fri Apr 10 17:49:16 UTC 2015 x86_64
[ 158.871] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=13222574-b16d-4bf4-97ee-19702a7c2746 ro quiet splash vt.handoff=7
[ 158.875] Build Date: 12 February 2015 02:46:23PM
[ 158.877] xorg-server 2:1.16.0-1ubuntu1.3 (For technical support please see http://www.ubuntu.com/support)
[ 158.877] Current version of pixman: 0.30.2
[ 158.880] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 158.880] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 158.886] (==) Log file: "/var/log/Xorg.0.log", Time: Sat May 2 18:06:29 2015
[ 158.887] (==) Using config file: "/etc/X11/xorg.conf"
[ 158.888] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 158.888] (==) ServerLayout "amd-layout"
[ 158.888] (**) |-->Screen "amd-screen" (0)
[ 158.888] (**) | |-->Monitor "amd-monitor"
[ 158.889] (**) | |-->Device "amd-device"
[ 158.889] (==) Automatically adding devices
[ 158.889] (==) Automatically enabling devices
[ 158.889] (==) Automatically adding GPU devices
[ 158.889] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 158.889] Entry deleted from font path.
[ 158.889] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 158.889] Entry deleted from font path.
[ 158.889] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 158.889] Entry deleted from font path.
[ 158.889] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 158.889] Entry deleted from font path.
[ 158.889] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 158.889] Entry deleted from font path.
[ 158.889] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/Type1,
built-ins
[ 158.889] (==) ModulePath set to "/usr/lib/x86_64-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[ 158.889] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 158.889] (II) Loader magic: 0x7fd7740c2d80
[ 158.889] (II) Module ABI versions:
[ 158.889] X.Org ANSI C Emulation: 0.4
[ 158.889] X.Org Video Driver: 18.0
[ 158.889] X.Org XInput driver : 21.0
[ 158.889] X.Org Server Extension : 8.0
[ 158.889] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 158.891] (--) PCI:*(0:0:2:0) 8086:0166:1028:05b8 rev 9, Mem @ 0xc1000000/4194304, 0xb0000000/268435456, I/O @ 0x00004000/64
[ 158.891] (--) PCI: (0:1:0:0) 1002:6601:1028:05b8 rev 0, Mem @ 0xa0000000/268435456, 0xc0000000/262144, I/O @ 0x00003000/256, BIOS @ 0x????????/131072
[ 158.891] (II) LoadModule: "glx"
[ 158.892] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so
[ 158.892] (II) Module glx: vendor="Advanced Micro Devices, Inc."
[ 158.892] compiled for 6.9.0, module version = 1.0.0
[ 158.892] (II) LoadModule: "fglrx"
[ 158.892] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so
[ 158.922] (II) Module fglrx: vendor="FireGL - AMD Technologies Inc."
[ 158.922] compiled for 1.4.99.906, module version = 14.20.7
[ 158.922] Module class: X.Org Video Driver
[ 158.922] (II) Loading sub module "fglrxdrm"
[ 158.922] (II) LoadModule: "fglrxdrm"
[ 158.922] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/linux/libfglrxdrm.so
[ 158.922] (II) Module fglrxdrm: vendor="FireGL - AMD Technologies Inc."
[ 158.922] compiled for 1.4.99.906, module version = 14.20.7
[ 158.922] (II) AMD Proprietary Linux Driver Version Identifier:14.20.7
[ 158.922] (II) AMD Proprietary Linux Driver Release Identifier: UNSUPPORTED-14.201.1006.1002
[ 158.922] (II) AMD Proprietary Linux Driver Build Date: Sep 2 2014 10:14:55
[ 158.922] (--) using VT number 8
[ 159.008] (WW) Falling back to old probe method for fglrx
[ 159.018] (II) Loading PCS database from /etc/ati/amdpcsdb /etc/ati/amdpcsdb.default
[ 159.021] ukiDynamicMajor: found major device number 250
[ 159.021] ukiDynamicMajor: found major device number 250
[ 159.021] ukiOpenByBusid: Searching for BusID PCI:1:0:0
[ 159.021] ukiOpenDevice: node name is /dev/ati/card0
[ 159.022] ukiOpenDevice: open result is 9, (OK)
[ 159.022] ukiOpenByBusid: ukiOpenMinor returns 9
[ 159.022] ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0
[ 159.094] (--) Chipset Supported AMD Graphics Processor (0x6601) found
[ 159.094] (II) fglrx: intel VGA device detected, load intel driver.
[ 159.094] (II) LoadModule: "intel"
[ 159.094] (WW) Warning, couldn't open module intel
[ 159.094] (II) UnloadModule: "intel"
[ 159.094] (II) Unloading intel
[ 159.094] (EE) Failed to load module "intel" (module does not exist, 0)
[ 159.094] (WW) fglrx: Fail to load intel driver!
[ 159.095] (II) fglrx(0): pEnt->device->identifier=0x7fd77416acf0
[ 159.095] (II) fglrx(0): === [xdl_xs116_atiddxPreInit] === begin
[ 159.095] (EE)
[ 159.095] (EE) Backtrace:
[ 159.096] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7fd773e3af76]
[ 159.096] (EE) 1: /usr/bin/X (0x7fd773c84000+0x1bb179) [0x7fd773e3f179]
[ 159.096] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fd7719be000+0x36eb0) [0x7fd7719f4eb0]
[ 159.096] (EE) 3: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so (xdl_xs116_atiddxPxPreInit+0xeb) [0x7fd76ed6588b]
[ 159.096] (EE) 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so (xdl_xs116_atiddxPreInit+0x226b) [0x7fd76ed40d4b]
[ 159.097] (EE) 5: /usr/bin/X (InitOutput+0xabb) [0x7fd773d1e3ab]
[ 159.097] (EE) 6: /usr/bin/X (0x7fd773c84000+0x5b51a) [0x7fd773cdf51a]
[ 159.097] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7fd7719dfec5]
[ 159.097] (EE) 8: /usr/bin/X (0x7fd773c84000+0x45a8e) [0x7fd773cc9a8e]
[ 159.097] (EE)
[ 159.097] (EE) Segmentation fault at address 0x38
[ 159.097] (EE)
Fatal server error:
[ 159.097] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 159.097] (EE)
[ 159.097] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 159.097] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 159.097] (EE)
[ 159.223] (EE) Server terminated with error (1). Closing log file.
先感谢您 ：）
答案1
尝试以下命令：
sudo dpkg-reconfigure lighdm
将出现一个屏幕，要求您在显示管理器之间进行选择（如果您有多个）。
