登录 Ubuntu 后，我可以看到我的桌面大约 1-2 秒，然后我会自动注销。这是 的一部分/var/log/syslog，可能包含这种情况的解决方案：
Dec 4 09:15:21 dlakomski nautilus-deskto[4134]: Can not get _NET_WORKAREA
Dec 4 09:15:21 dlakomski nautilus-deskto[4134]: Can not determine workarea, guessing at layout
Dec 4 09:15:21 dlakomski dropbox.desktop[4149]: dropbox: load fq extension '/home/dlakomski/.dropbox-dist/dropbox-lnx.x86_64-62.4.103/tornado.speedups.cpython-35m-x86_64-linux-gnu.so'
Dec 4 09:15:21 dlakomski dropbox.desktop[4149]: dropbox: load fq extension '/home/dlakomski/.dropbox-dist/dropbox-lnx.x86_64-62.4.103/cpuid.compiled._cpuid.cpython-35m-x86_64-linux-gnu.so'
Dec 4 09:15:21 dlakomski gnome-shell[4183]: Telepathy is not available, chat integration will be disabled.
Dec 4 09:15:21 dlakomski dropbox.desktop[4149]: dropbox: load fq extension '/home/dlakomski/.dropbox-dist/dropbox-lnx.x86_64-62.4.103/linuxffi.resolv.compiled._linuxffi_resolv.cpython-35m-x86_64-linux-gnu.so'
Dec 4 09:15:21 dlakomski gnome-shell[4183]: type name …