wayland是下一代linux图形系统，具体网上搜。
我不用debian不清楚相关操作，都思路只有一个，删除wayland相关的包即可。

what's that? how?

你电脑上装了一个低版本的wayland，升级成最新版本，或者卸载它

i just install some software and driver in my debian. i do not know if these act will effect the yong. the recent change of my system are as follows: install nvidia driver (dkms), openjdk-6-jre (for xmind),  xmind,qcad,draftsight, wineqq of longene, texlive and texstudio,wps,libreoffice,mplayer and smplayer.

dgod：你用的什么版本？回到原帖

the latest version in 5-7. now, new problem is happen. yong can not start!  when i type "yong -d" in console, it echo the mesg:
yong: /home/dgod/yong/im/ybus-wayland.c:995:ybus_wayland_init: 断言 "p_wl_keyboard_interface!=((void *)0)" failed. what should i do now?

你用的什么版本？