Xlib: connection to ":0.0" refused by server

[路人甲]

su 執行 kedit 結果
=======
debian:/etc/apt# kedit sources.list
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

kedit: cannot connect to X server :0.0
=======
知道用 kdesu kedit 可以解決，
但不想用 kdesu，不知是否還有解法？

[訪客]

用 sudo