Linux basic 14:ubuntu use issue sticker

2018.04.14 the Taskbar and menu bar on Ubuntu desktop are gone.

Possible causes:

It is also because of the installation of fbterm and supporting software such as FCITX after the appearance of this phenomenon, judgment may be related to this. Online data shows that there may be a misuse of the unity plugin that led to the removal of Ubuntu.

Workaround:

Reinstall the Unity plugin and reset to the default state.

sudo apt-get Install Unity

Setsid Unity

Purpose of Setsid: Setsid is used to execute unity programs in a new session, that is, to allow unity to execute in the background and not rely on the current terminal's environment.

At this point, the taskbar and the menu bar appear on the desktop, and the icon basically reverts to the default state when Ubuntu was installed.

Unity--reset-icons

sudo reboot

At this point, the desktop and windows are completely back to normal.

2018.04.14 Ubuntu Desktop Login screen mouse and keyboard out of control, cannot enter characters, cannot click.

Possible causes:

Since this is the case with the installation of Fbterm and the accompanying FCITX software, the judgment may be related to this. The information on the Internet indicates that it is possible that the xserver-xorg was deleted by mistake.

Workaround:

Reinstall the Xserver-xorg software.

Because at this time can not be logged into the system through Xwindow, and can not be switched to the console via CTRL+ALT+F1, etc., can only be powered off after the USB stick boot.

(1) in the U disk system, the problem of the Ubuntu system first set to boot to the console.

sudo mount-t ext4/dev/xxxx/media/xxxxxxxx

sudo chroot//media/xxxxxxxxxx

sudo systemctl set-default multi-user.target

(2) Restart the problematic Ubuntu system and install the xserver-xorg.

sudo apt-get install xserver-xorg

sudo reboot

After restarting, the mouse and keyboard can operate normally in the login window.

Linux basic 14:ubuntu use issue sticker