昨天，我正在配置 Java 路径以进行安装Netbeans 阿帕奇然后我就去睡觉了。今天，当我尝试使用正确的用户名和密码登录时，屏幕卡住了，再次显示登录。我尝试了所有答案：
由于与 nvidia 驱动程序不兼容，我的 Ubuntu 陷入了登录循环[重复]
结果 sudo cat .xsession-errors是：
Xsession: X session started for root at Sat Feb 9 16:49:52 CET 2019
dbus-update-activation-environment: systemd --user not found, ignoring --systemd argument
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting XAUTHORITY=/home/alaeddine/.Xauthority
localuser:root being added to access control list
dbus-update-activation-environment: systemd --user not found, ignoring --systemd argument
dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
dbus-update-activation-environment: systemd --user not found, ignoring --systemd argument
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
dbus-update-activation-environment: systemd --user not found, ignoring --systemd argument
dbus-update-activation-environment: setting SUDO_GID=1000
dbus-update-activation-environment: setting MAIL=/var/mail/root
dbus-update-activation-environment: setting USER=root
dbus-update-activation-environment: setting HOME=/home/alaeddine
dbus-update-activation-environment: setting QT4_IM_MODULE=xim
dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-1YeMPItkMC,guid=70b8a7d6bd2d984b274e80eb5c5ef6a2
dbus-update-activation-environment: setting SUDO_UID=1000
dbus-update-activation-environment: setting IM_CONFIG_PHASE=1
dbus-update-activation-environment: setting LOGNAME=root
dbus-update-activation-environment: setting GTK_IM_MODULE=ibus
dbus-update-activation-environment: setting TERM=linux
dbus-update-activation-environment: setting USERNAME=root
dbus-update-activation-environment: setting WINDOWPATH=2
dbus-update-activation-environment: setting PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting LANG=en_US.UTF-8
dbus-update-activation-environment: setting XAUTHORITY=/home/alaeddine/.Xauthority
dbus-update-activation-environment: setting XMODIFIERS=@im=ibus
dbus-update-activation-environment: setting SUDO_COMMAND=/usr/bin/startx
dbus-update-activation-environment: setting SHELL=/bin/bash
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
dbus-update-activation-environment: setting SUDO_USER=alaeddine
dbus-update-activation-environment: setting GPG_AGENT_INFO=/home/alaeddine/.gnupg/S.gpg-agent:0:1
dbus-update-activation-environment: setting QT_IM_MODULE=ibus
dbus-update-activation-environment: setting JAVA_HOME=/usr/lib/jvm/jdk-11.0.2
dbus-update-activation-environment: setting PWD=/home/alaeddine
dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/share/gnome:/usr/local/share/:/usr/share/
dbus-update-activation-environment: setting CLUTTER_IM_MODULE=xim