The KDE login page does not appear/open.
Only the debian linux login page is
vailable. So,I couldn't use the packages.
How the problem can be solved?
With Debian I assume you mean the console based(command line) login screen.
This could have been due to various reasons:
1) Low disk space in the home directory and/or root directory
Solution: Login through the debian console and delete some large files using rm command. Restart the laptop.
2) Filesystem permissions altered
Solution: Login through the console and run this at the home directory "sudo chown -R $USER.$USER . "
Restart the laptop.
3) Issue with X server
Solution: Login through console and run 'startx' command, see if you get the KDE login screen
This also does not work. After typing this in the command line, the message is "No such file or directory".
So, please tell me what will be the next step.