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Finally I resolved the problem!!!!!!!:p
should to install gdm3,
maybe when i removed libasound2 alsa-utils alsa-oss,it removed also some other packet.
code:
apt-get update
apt-get install gdm3

I installed x-window-system then I typed startx.
but I find this996

Hi,I need help!!! plz

apt-get --purge remove libasound2 alsa-utils alsa-oss
after I uninstalled this program which i installed before, and i rebooted the system.

Now I can not use PC with...