Ubuntu&Miix 320 2 in 1

[mahesh]

installed Ubuntu 18.10, lenovo 10.1" ideapad Miix 320 2 in 1.
all working ok, except for microSD card and webcams.
i'm not interested in webcams, but i need to work with micro SD card.
with micro SD card inserted system boot, after login screen got black screen without cursor.
how can i solve this ?