每当我登录时，屏幕都会变黑，我会看到一小段类似终端的文本，然后它会将我带回到登录屏幕（Ubuntu 12.04）。我可以通过命令行输入并登录。来宾帐户可以找到。我认为发生这种情况是因为我编辑了一些与 Xorg 相关的文件，试图让外接显示器与我的笔记本电脑配合使用。我从论坛帖子中复制粘贴，所以我不记得文件或我在文件中放了什么。无法再次找到论坛帖子，并且我的 bash 历史记录未从该会话记录下来。
我尝试重新安装 Xorg 和 ubuntu-desktop、nvidia，重置我能找到的所有配置……我真的不知道该怎么办。这是我的 /.xsession-errors：
/usr/sbin/lightdm-session: 11: /home/seth/.profile: -s: not found
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing vpswitch options...done
Initializing snap options...done
Initializing mousepoll options...done
Initializing resize options...done
Initializing place options...done
Initializing move options...done
Initializing wall options...done
Initializing grid options...done
I/O warning : failed to load external entity "/home/seth/.compiz/session/108fa6ea48f8a973b9133850948930576700000017740033"
Initializing session options...done
Initializing gnomecompat options...done
** Message: applet now removed from the notification area
Initializing animation options...done
Initializing fade options...done
Initializing unitymtgrabhandles options...done
Initializing workarounds options...done
Initializing scale options...done
compiz (expo) - Warn: failed to bind image to texture
Initializing expo options...done
Initializing ezoom options...done
** Message: using fallback from indicator to GtkStatusIcon
(compiz:1846): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed
Initializing unityshell options...done
Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory
Please ask your system administrator to enable user sharing.
Setting Update "main_menu_key"
Setting Update "run_key"
Setting Update "launcher_hide_mode"
Setting Update "edge_responsiveness"
Setting Update "launcher_capture_mouse"
** Message: moving back from GtkStatusIcon to indicator
compiz (decor) - Warn: failed to bind pixmap to texture
** (zeitgeist-datahub:2128): WARNING **: zeitgeist-datahub.vala:227: Unable to get name "org.gnome.zeitgeist.datahub" on the bus!
failed to create drawable
compiz (core) - Warn: glXCreatePixmap failed
compiz (core) - Warn: Couldn't bind background pixmap 0x1e00001 to texture
compiz (decor) - Warn: failed to bind pixmap to texture
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
compiz (decor) - Warn: failed to bind pixmap to texture
compiz (decor) - Warn: failed to bind pixmap to texture
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user.
[2348:2352:12678840568:ERROR:gpu_watchdog_thread.cc(231)] The GPU process hung. Terminating after 10000 ms.
[2256:2283:14450711755:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14450726175:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14450746028:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14464521342:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14464541249:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14690775186:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14690795231:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14704543843:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14704566717:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14766138587:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14857232694:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14930901403:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14930965542:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14944566814:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:14944592215:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15170929788:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15170947382:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15184585015:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15184605475:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15366189036:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15410983381:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15411569689:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15431632431:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15431674438:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15457304356:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15656020938:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15656042383:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15674651268:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:15674671786:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16052544301:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16057387653:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16157122849:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16157123851:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16157125473:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16157126544:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
[2256:2283:16157129682:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107
如果有人能帮助我，我将永远感激
答案1
我在运行 Ubuntu 12.04 时遇到了非常类似的问题。不知道我做了什么导致它，但我登录我的帐户时它会立即将我踢回到登录屏幕。我也可以登录到 Guest 帐户，但不能登录我的帐户。最后，我的 .xsession-errors 文件中出现了相同的 compiz 错误。
读完这篇文章后：ubuntu12.04无法登录我决定尝试重命名 .Xauthority、.Xauthority-c 和 .Xauthority-l 文件，这样 X 就无法识别它们了。之后我就可以登录了。检查了我的主目录，并生成了一个新的 .Xauthority 文件。希望这能有所帮助！