Created attachment 143116 [details]
dmesg > dmesg.0115
Fcitx UI hangout but XFCE kept working.
OS: Xubuntu 18.04
Nvidia GT 430
Linux 965P-DS4 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux