How to solve login problem in Ubuntu 15.04?

Question

linux

Hello! I decided to install Ubuntu instead of windows 7, on my buggy hardware. In the installation of operating systems, I am a complete layman. In general, I wrote an iso image to a USB flash drive, booted from a USB flash drive, went to the Ubuntu installation, chose the item to erase the disk and install Ubuntu (the item to connect to the Internet was not ticked, although Wi-Fi was connected) Everything was installed, I pressed the restart button. And here is this terrible login window, I entered the password, everything is correct, but some kind of black window flies out with letters that I don’t have time to read, I can’t take a picture of it. Once again, I'm back to logging in, guest logging works exactly the same. This is my first time installing Ubuntu and the OS in general. Tell me what to do, the option to roll back will not work, because windows RIP

Answer 1

The easiest and fastest way is to rearrange the OS again, pay attention when it asks you to come up with a user password.
Maybe check Caps or input language?

Answer 2

You are most likely entering incorrect information.

Answer 3

ctrl+alt+f1?
tail -n 200 /var/log/lightdm/lightdm.log or whatever ubunta has now, gdm else
tail -n 200 /var/log/Xorg.0.log or even cat /var/log/Xorg.0. log | grep EE

Answer 4

It looks like a problem with the video card - I don't remember exactly, I had something related to ksm and dpmi. Look in the direction "black screen in ubuntu" - there you need to set some parameter for the kernel.