Cannot Login Zorin OS after Reboot

General Help
1

I am using Zorin for the past few months but suddenly after an update my entire screen turned black and when I rebooted my PC, I was welcomed with a black screen. This is really frustrating and I want to recover my Data instantly.

I have some of my PC info stored hoping that can help in finding the solution.

perry@platypus:~$ sudo lshw -c display
[sudo] password for perry:       
  *-display                 
       description: VGA compatible controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:147 memory:a1000000-a1ffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:4000(size=128) memory:c0000-dffff

perry@platupus:~$ neofetch
        `osssssssssssssssssssso`           perry@platypus 
       .osssssssssssssssssssssso.          ---------------- 
      .+oooooooooooooooooooooooo+.         OS: Zorin OS 16.1 x86_64 
                                           Host: MS-7C82 1.0 
                                           Kernel: 5.15.0-41-generic 
  `::::::::::::::::::::::.         .:`     Uptime: 49 mins 
 `+ssssssssssssssssss+:.`     `.:+ssso`    Packages: 2419 (dpkg), 71 (flatpak), 13 (snap) 
.ossssssssssssssso/.       `-+ossssssso.   Shell: bash 5.0.17 
ssssssssssssso/-`      `-/osssssssssssss   Resolution: 1080x1920, 1920x1080 
.ossssssso/-`      .-/ossssssssssssssso.   DE: GNOME 
 `+sss+:.      `.:+ssssssssssssssssss+`    WM: Mutter 
  `:.         .::::::::::::::::::::::`     WM Theme: ZorinBlue-Light 
                                           Theme: ZorinBlue-Light [GTK2/3] 
                                           Icons: ZorinBlue-Light [GTK2/3] 
      .+oooooooooooooooooooooooo+.         Terminal: gnome-terminal 
       -osssssssssssssssssssssso-          CPU: Intel i9-10900K (20) @ 5.300GHz 
        `osssssssssssssssssssso`           GPU: NVIDIA 01:00.0 NVIDIA Corporation Device 2488 
                                           Memory: 4325MiB / 40057MiB
2 Likes
2

Hi, Sorry to hear about your experience

Main Causes and Reason for your Problem are :-

Sometimes after an upgrade, your system might not bring you to the desktop after logging in. If you try logging in and you just see a black screen, or Ubuntu brings you back to the login screen, you're experiencing a login loop. There are several causes for login loops:

  • Configuration files in your home directory are not compatible with new versions of software
  • The display/login manager is not working correctly
  • The NVIDIA driver has been updated and is causing an issue
  • The AMD radeon driver is being loaded and causing issues

Each cause has a different solution, and certain items (such as NVIDIA) might not be applicable to your system. In most cases, you can switch to a full-screen terminal (called a TTY) to log in and fix the issue.

5 Likes
3

How to fix this Issue?

3 Likes
4

Press Ctrl + Alt + F5 on your login screen to switch to tty enter login:-

Remove the old configuration files using

sudo adduser test
sudo systemctl reboot

mv ~/.config ~/.config.old
mv ~/.local ~/.local.old
mv ~/.cache ~/.cache.old
mv ~/.nvidia-settings-rc ~/.nvidia-settings-rc.old
mv ~/.nv ~/.nv.old
sudo systemctl reboot

Then remove the xorg.conf files

mv /etc/X11/xorg.conf /etc/X11/xorg.conf.old

/usr/share/X11/xorg.conf.d
5 Likes
5

Most of the Commands did not return anything back, Just sent me back to a new command line ???

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6

That Means the Commands were executed.

5 Likes
7

Now Reinstall the login manager :smile:

sudo apt install --reinstall gdm3 ubuntu-desktop gnome-shell
sudo systemctl reboot
5 Likes
8

Do not log in right now, there are some more commands to go :joy:

5 Likes
9

Got back my Login manager :smile:

4 Likes
10

Do the same Procedure to return to the tty screen and login.

5 Likes
11

For NVIDIA Drivers

sudo apt purge ~nnvidia
sudo apt autoremove
sudo apt clean

sudo apt update
sudo apt full-upgrade
sudo apt install system76-driver-nvidia
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12

For Radeon

sudo update-initramfs -c -k all
sudo shutdown -r now

sudo apt update
sudo apt full-upgrade
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13

Now what??

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14

Reboot and see if it works :smile:

5 Likes
15

Still a black Screen After Login :sob: :cry:
I can only see the taskbar

4 Likes
16

Try

sudo update-grub

in the terminal

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17

ctrl + alt +t

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18

nothing!!!

3 Likes
19

Also Try,

sudo apt install --reinstall zorin-os-desktop
5 Likes
20

It worked, I got my screen back But, the load is very slow!

2 Likes