我刚刚将我的ubuntu（升级raring到saucy）现在无法登录GNOME。与虚拟控制台（例如Ctrl- Alt- ）相反。我将其设置为自动登录。但现在它要求输入密码。我输入密码，按，屏幕闪烁，我又回到了登录屏幕。然后我查看了F1Enter/var/log/Xorg.0.log：
[ 33.956] Initializing built-in extension DRI2
[ 33.956] (II) LoadModule: "glx"
[ 33.956] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 33.956] (II) Module glx: vendor="X.Org Foundation"
[ 33.956] compiled for 1.14.3, module version = 1.0.0
[ 33.956] ABI class: X.Org Server Extension, version 7.0
[ 33.956] (==) AIGLX enabled
[ 33.956] Loading extension GLX
[ 33.956] (==) Matched fglrx as autoconfigured driver 0
[ 33.956] (==) Matched ati as autoconfigured driver 1
[ 33.956] (==) Matched fglrx as autoconfigured driver 2
[ 33.956] (==) Matched ati as autoconfigured driver 3
[ 33.956] (==) Matched vesa as autoconfigured driver 4
[ 33.956] (==) Matched modesetting as autoconfigured driver 5
[ 33.956] (==) Matched fbdev as autoconfigured driver 6
[ 33.956] (==) Assigned the driver to the xf86ConfigLayout
[ 33.956] (II) LoadModule: "fglrx"
[ 33.957] (WW) Warning, couldn't open module fglrx
[ 33.957] (II) UnloadModule: "fglrx"
[ 33.957] (II) Unloading fglrx
[ 33.957] (EE) Failed to load module "fglrx" (module does not exist, 0)
[ 33.957] (II) LoadModule: "ati"
[ 33.957] (WW) Warning, couldn't open module ati
[ 33.957] (II) UnloadModule: "ati"
[ 33.957] (II) Unloading ati
[ 33.957] (EE) Failed to load module "ati" (module does not exist, 0)
[ 33.957] (II) LoadModule: "vesa"
[ 33.957] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 33.957] (II) Module vesa: vendor="X.Org Foundation"
[ 33.957] compiled for 1.14.1, module version = 2.3.2
[ 33.957] Module class: X.Org Video Driver
[ 33.957] ABI class: X.Org Video Driver, version 14.1
[ 33.957] (II) LoadModule: "modesetting"
[ 33.957] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 33.957] (II) Module modesetting: vendor="X.Org Foundation"
[ 33.957] compiled for 1.14.1, module version = 0.8.0
[ 33.957] Module class: X.Org Video Driver
[ 33.957] ABI class: X.Org Video Driver, version 14.1
[ 33.957] (II) LoadModule: "fbdev"
[ 33.957] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 33.958] (II) Module fbdev: vendor="X.Org Foundation"
[ 33.958] compiled for 1.14.1, module version = 0.4.3
[ 33.958] Module class: X.Org Video Driver
[ 33.958] ABI class: X.Org Video Driver, version 14.1
[ 33.958] (==) Matched fglrx as autoconfigured driver 0
[ 33.958] (==) Matched ati as autoconfigured driver 1
[ 33.958] (==) Matched fglrx as autoconfigured driver 2
[ 33.958] (==) Matched ati as autoconfigured driver 3
[ 33.958] (==) Matched vesa as autoconfigured driver 4
[ 33.958] (==) Matched modesetting as autoconfigured driver 5
[ 33.958] (==) Matched fbdev as autoconfigured driver 6
[ 33.958] (==) Assigned the driver to the xf86ConfigLayout
[ 33.958] (II) LoadModule: "fglrx"
[ 33.958] (WW) Warning, couldn't open module fglrx
[ 33.958] (II) UnloadModule: "fglrx"
[ 33.958] (II) Unloading fglrx
[ 33.958] (EE) Failed to load module "fglrx" (module does not exist, 0)
[ 33.958] (II) LoadModule: "ati"
[ 33.958] (WW) Warning, couldn't open module ati
[ 33.958] (II) UnloadModule: "ati"
[ 33.958] (II) Unloading ati
[ 33.958] (EE) Failed to load module "ati" (module does not exist, 0)
[ 33.958] (II) LoadModule: "vesa"
[ 33.958] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 33.958] (II) Module vesa: vendor="X.Org Foundation"
[ 33.958] compiled for 1.14.1, module version = 2.3.2
[ 33.958] Module class: X.Org Video Driver
[ 33.958] ABI class: X.Org Video Driver, version 14.1
[ 33.958] (II) UnloadModule: "vesa"
[ 33.958] (II) Unloading vesa
[ 33.958] (II) Failed to load module "vesa" (already loaded, 0)
[ 33.958] (II) LoadModule: "modesetting"
[ 33.959] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 33.959] (II) Module modesetting: vendor="X.Org Foundation"
[ 33.959] compiled for 1.14.1, module version = 0.8.0
[ 33.959] Module class: X.Org Video Driver
[ 33.959] ABI class: X.Org Video Driver, version 14.1
[ 33.959] (II) UnloadModule: "modesetting"
[ 33.959] (II) Unloading modesetting
[ 33.959] (II) Failed to load module "modesetting" (already loaded, 0)
[ 33.959] (II) LoadModule: "fbdev"
[ 33.959] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 33.959] (II) Module fbdev: vendor="X.Org Foundation"
[ 33.959] compiled for 1.14.1, module version = 0.4.3
[ 33.959] Module class: X.Org Video Driver
[ 33.959] ABI class: X.Org Video Driver, version 14.1
[ 33.959] (II) UnloadModule: "fbdev"
[ 33.959] (II) Unloading fbdev
[ 33.959] (II) Failed to load module "fbdev" (already loaded, 0)
[ 33.959] (II) VESA: driver for VESA chipsets: vesa
[ 33.959] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 33.959] (II) FBDEV: driver for framebuffer: fbdev
[ 33.959] (++) using VT number 7
如果我安装fglrx，它读：
[ 37.152] Initializing built-in extension DRI2
[ 37.152] (II) LoadModule: "glx"
[ 37.152] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so
[ 37.152] (II) Module glx: vendor="Advanced Micro Devices, Inc."
[ 37.152] compiled for 6.9.0, module version = 1.0.0
[ 37.152] Loading extension GLX
[ 37.153] (==) Matched fglrx as autoconfigured driver 0
[ 37.153] (==) Matched ati as autoconfigured driver 1
[ 37.153] (==) Matched vesa as autoconfigured driver 2
[ 37.153] (==) Matched modesetting as autoconfigured driver 3
[ 37.153] (==) Matched fbdev as autoconfigured driver 4
[ 37.153] (==) Assigned the driver to the xf86ConfigLayout
[ 37.153] (II) LoadModule: "fglrx"
[ 37.153] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so
[ 37.168] (II) Module fglrx: vendor="FireGL - AMD Technologies Inc."
[ 37.168] compiled for 1.4.99.906, module version = 13.10.10
[ 37.168] Module class: X.Org Video Driver
[ 37.168] (II) Loading sub module "fglrxdrm"
[ 37.168] (II) LoadModule: "fglrxdrm"
[ 37.168] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/linux/libfglrxdrm.so
[ 37.169] (II) Module fglrxdrm: vendor="FireGL - AMD Technologies Inc."
[ 37.169] compiled for 1.4.99.906, module version = 13.10.10
[ 37.169] (II) LoadModule: "ati"
[ 37.169] (WW) Warning, couldn't open module ati
[ 37.169] (II) UnloadModule: "ati"
[ 37.169] (II) Unloading ati
[ 37.169] (EE) Failed to load module "ati" (module does not exist, 0)
[ 37.169] (II) LoadModule: "vesa"
[ 37.169] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 37.169] (II) Module vesa: vendor="X.Org Foundation"
[ 37.169] compiled for 1.14.1, module version = 2.3.2
[ 37.169] Module class: X.Org Video Driver
[ 37.169] ABI class: X.Org Video Driver, version 14.1
[ 37.169] (II) LoadModule: "modesetting"
[ 37.170] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 37.170] (II) Module modesetting: vendor="X.Org Foundation"
[ 37.170] compiled for 1.14.1, module version = 0.8.0
[ 37.170] Module class: X.Org Video Driver
[ 37.170] ABI class: X.Org Video Driver, version 14.1
[ 37.170] (II) LoadModule: "fbdev"
[ 37.170] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 37.170] (II) Module fbdev: vendor="X.Org Foundation"
[ 37.170] compiled for 1.14.1, module version = 0.4.3
[ 37.170] Module class: X.Org Video Driver
[ 37.170] ABI class: X.Org Video Driver, version 14.1
[ 37.170] (==) Matched fglrx as autoconfigured driver 0
[ 37.170] (==) Matched ati as autoconfigured driver 1
[ 37.170] (==) Matched vesa as autoconfigured driver 2
[ 37.170] (==) Matched modesetting as autoconfigured driver 3
[ 37.170] (==) Matched fbdev as autoconfigured driver 4
[ 37.170] (==) Assigned the driver to the xf86ConfigLayout
[ 37.170] (II) LoadModule: "fglrx"
[ 37.170] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/drivers/fglrx_drv.so
[ 37.170] (II) Module fglrx: vendor="FireGL - AMD Technologies Inc."
[ 37.170] compiled for 1.4.99.906, module version = 13.10.10
[ 37.170] Module class: X.Org Video Driver
[ 37.170] (II) LoadModule: "ati"
[ 37.170] (WW) Warning, couldn't open module ati
[ 37.170] (II) UnloadModule: "ati"
[ 37.171] (II) Unloading ati
[ 37.171] (EE) Failed to load module "ati" (module does not exist, 0)
[ 37.171] (II) LoadModule: "vesa"
[ 37.171] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 37.171] (II) Module vesa: vendor="X.Org Foundation"
[ 37.171] compiled for 1.14.1, module version = 2.3.2
[ 37.171] Module class: X.Org Video Driver
[ 37.171] ABI class: X.Org Video Driver, version 14.1
[ 37.171] (II) UnloadModule: "vesa"
[ 37.171] (II) Unloading vesa
[ 37.171] (II) Failed to load module "vesa" (already loaded, 0)
[ 37.171] (II) LoadModule: "modesetting"
[ 37.171] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 37.171] (II) Module modesetting: vendor="X.Org Foundation"
[ 37.171] compiled for 1.14.1, module version = 0.8.0
[ 37.171] Module class: X.Org Video Driver
[ 37.171] ABI class: X.Org Video Driver, version 14.1
[ 37.171] (II) UnloadModule: "modesetting"
[ 37.171] (II) Unloading modesetting
[ 37.171] (II) Failed to load module "modesetting" (already loaded, 0)
[ 37.171] (II) LoadModule: "fbdev"
[ 37.171] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 37.171] (II) Module fbdev: vendor="X.Org Foundation"
[ 37.171] compiled for 1.14.1, module version = 0.4.3
[ 37.171] Module class: X.Org Video Driver
[ 37.171] ABI class: X.Org Video Driver, version 14.1
[ 37.171] (II) UnloadModule: "fbdev"
[ 37.171] (II) Unloading fbdev
[ 37.171] (II) Failed to load module "fbdev" (already loaded, 0)
[ 37.171] (II) AMD Proprietary Linux Driver Version Identifier:13.10.10
[ 37.171] (II) AMD Proprietary Linux Driver Release Identifier: UNSUPPORTED-13.101
[ 37.171] (II) AMD Proprietary Linux Driver Build Date: May 23 2013 15:49:35
[ 37.171] (II) VESA: driver for VESA chipsets: vesa
[ 37.171] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 37.171] (II) FBDEV: driver for framebuffer: fbdev
[ 37.171] (++) using VT number 7
我安装/删除软件包的次数比这还多。有一次它说：
(EE) Failed to load /usr/lib64/xorg/modules/libglamoregl.so: /usr/lib64/xorg/modules/libglamoregl.so: undefined symbol: _glapi_tls_Context
另外还有init: not found：~/.xsession-errors
/usr/sbin/lightdm-session: 5: exec: init: not found
事实上，我没什么主意了。你呢？:)
更新型多巴胺我在另一台机器上遇到了同样的问题。
答案1
有人弄乱了 PATH。
编辑您的.profile并添加到末尾：
PATH="/sbin:/usr/sbin:$PATH"
然后重新启动 lightdm：
sudo service lightdm restart
这可能是 darkhole 所说的错误
答案2
请发布您的所有 .xsession-errors 文件。也许这是此处提到的错误：https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1228079
您是否使用 pbis-open 将 PC 加入域？
答案3
我认为我通过删除 .dmrc 已经解决了这个问题。
实际上，由于认为存在配置错误，我从主目录中删除了很多点文件。.dmrc 是我最后删除的文件之一。