登录需要很长时间吗？

Question

升级到10.04之后，Ubuntu在输入凭据后需要很长时间(1-2分钟)登录。对话框中的大多数内容都是“检查凭据”。我怎么去调试这里发生的事情呢？这是一个非常快速的系统，但显然有些东西在登录时挂起或没有响应。

这是我的:0-greeter.log。有什么想法吗？

Window manager warning: Failed to read saved session file /var/lib/gdm/.config/metacity/sessions/1046b54d5b8b97fbb2128498129581685800000016580008.ms: Failed to open file '/var/lib/gdm/.config/metacity/sessions/1046b54d5b8b97fbb2128498129581685800000016580008.ms': No such file or directory
** (process:1742): DEBUG: Greeter session pid=1742 display=:0.0 xauthority=/var/run/gdm/auth-for-gdm-pWDXxn/database

(gnome-power-manager:1745): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:2273: signal `proxy-status' is invalid for instance `0x21f5160'

** (gnome-power-manager:1745): WARNING **: Either HAL or DBUS are not working!

** (gnome-power-manager:1745): WARNING **: proxy failed

** (gnome-power-manager:1745): WARNING **: failed to get Computer root object

** (gnome-power-manager:1745): WARNING **: proxy NULL!!
gdm-simple-greeter[1742]: Gtk-WARNING: /build/buildd/gtk+2.0-2.20.1/gtk/gtkwidget.c:5636: widget not within a GtkWindow
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xe00046 (Login Wind)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xe00046 (Login Wind)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.

(gnome-settings-daemon:1666): Gdk-CRITICAL **: gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xe00046 (Login Wind)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.
Window manager warning: CurrentTime used to choose focus window; focus window may not be correct.
Window manager warning: Got a request to focus the no_focus_window with a timestamp of 0.  This shouldn't happen!

(gnome-power-manager:1745): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

Answer 1

这里有一些很棒的小窍门，我希望我能做的不仅仅是提高选票。然而，我发现的真正的问题是这个错误https://bugs.launchpad.net/ubuntu/+source/samba/+bug/584428。

为了解决这个问题，我在/etc/pam.d/common中注释掉了这一行

auth optional pam_smbpass.so migrate

我不明白这为什么会造成问题；我从未在这台机器上使用samba进行登录身份验证。

Answer 2

首先，尝试仔细阅读/var/log/gdm/:0-greeter.log。看看您是否可以通过遵循/var/log/auth.log中的时间戳来发现延迟。

Answer 3

想法1:听起来可能与DNS超时有关？

• 验证您的网络设置，并确保您可以平分/etc/resolv.conf中列出的任何DNS服务器。
• 尝试做一些将名称解析为IP的事情，比如ping www.google.com。

如果他们不工作，或需要很长时间，这可能是问题所在。

想法2:这台机器是使用诸如LDAP或NIS之类的外部设备来获取auth凭证吗？如果是这样的话，它可能在等待来自外部机器的响应。