Hi Yifan and Xiaoguang, thank you for the coredump instructions. In messages.txt I found: 2021-04-01T15:27:12.182457+02:00 localhost gnome-shell[19543]: (EE) Segmentation fault at address 0x18 2021-04-01T15:27:12.182584+02:00 localhost gnome-shell[19543]: Fatal server error: 2021-04-01T15:27:12.182648+02:00 localhost gnome-shell[19543]: (EE) Caught signal 11 (Segmentation fault). Server aborting 2021-04-01T15:27:13.063372+02:00 localhost systemd-coredump[19869]: Process 19543 (Xwayland) of user 1000 dumped core. I also tried with English(US) keyboard, there was no difference. I was not able to login with option Gnome. I also tried without my external MS 600 USB keyboard, there was no difference, I was not able to login with option Gnome. I uploaded most recent supportconfig and most recent core dump.