锁屏后要两次解锁

反馈与建议 常见问题
1

待机后，划动鼠标可以看到桌面，单击时进入解锁屏，第一次是Kylin的解锁，第二次是好像是Gnome, 很麻烦，有没有办法关掉一个？

2

终端输入以下命令：
$ dpkg -l | grep screensaver
输出什么？

3

uubird@uubird-Rev-1-0:~$ dpkg -l | grep screensaver
rc gnome-screensaver 3.6.1-7ubuntu6 amd64 GNOME screen saver and locker
ii ukui-screensaver 1.0.3-0ubuntu1 amd64 UKUI screen saver and locker
ii ukui-screensaver-common 1.0.3-0ubuntu1 all UKUI screen saver and locker (common files)
ii xscreensaver 5.36-1ubuntu1 amd64 Screensaver daemon and frontend for X11
ii xscreensaver-data 5.36-1ubuntu1 amd64 Screen saver modules for screensaver frontends
ii xscreensaver-data-extra 5.36-1ubuntu1 amd64 Extra screen saver modules for screensaver frontends
ii xscreensaver-gl 5.36-1ubuntu1 amd64 GL(Mesa) screen saver modules for screensaver frontends
ii xscreensaver-gl-extra 5.36-1ubuntu1 amd64 Extra GL(Mesa) screen saver modules for screensaver frontends

4

ii mate-screensaver 1.18.1-2ubuntu0 amd64 MATE screen saver and locker
ii mate-screensaver-common 1.18.1-2ubuntu0 all MATE screen saver and locker (common files)
ii ukui-screensaver 1.0.3-0ubuntu1 amd64 UKUI screen saver and locker
ii ukui-screensaver-common 1.0.3-0ubuntu1 all UKUI screen saver and locker (common files)
ii xscreensaver 5.36-1ubuntu1 amd64 Screensaver daemon and frontend for X11
ii xscreensaver-data 5.36-1ubuntu1 amd64 Screen saver modules for screensaver frontends
ii xscreensaver-data-extra 5.36-1ubuntu1 amd64 Extra screen saver modules for screensaver frontends
ii xscreensaver-gl 5.36-1ubuntu1 amd64 GL(Mesa) screen saver modules for screensaver frontends
ii xscreensaver-gl-extra 5.36-1ubuntu1 amd64 Extra GL(Mesa) screen saver modules for screensaver frontends

是不是太多了，都不知道应该保留哪一个。怎么保留？