Public bug reported:

The bug looks like this 
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/2143801
Interesting fact: blindly I type password, open terminal and type `reboot` and 
password; and reboot happen.
When bug happen I connected by ssh and did `ubuntu-bug nvidia-kernel-common-580 
--save broken_uubntu_bug.log`.

My workaround using ssh:
```
$ ubuntu-drivers devices 
== /sys/devices/pci0000:00/0000:00:03.1/0000:07:00.0 ==
modalias : pci:v000010DEd00002489sv000017AAsd0000C977bc03sc00i00
vendor   : NVIDIA Corporation
model    : GA104 [GeForce RTX 3060 Ti Lite Hash Rate]
driver   : nvidia-driver-580 - distro non-free
driver   : nvidia-driver-595-server - distro non-free
driver   : nvidia-driver-580-open - distro non-free
driver   : nvidia-driver-580-server-open - distro non-free
driver   : nvidia-driver-580-server - distro non-free
driver   : nvidia-driver-595-open - distro non-free recommended
driver   : nvidia-driver-595 - distro non-free
driver   : nvidia-driver-595-server-open - distro non-free
driver   : xserver-xorg-video-nouveau - distro free builtin
$ sudo apt purge nvidia-driver* && sudo apt autoremove
$ sudo reboot
$ sudo apt install nvidia-utils-580
```
After this workaround I can see login. After login I can remove version 580 and 
install version 595 again. And then 595 version works.

I did this bug report from recovered system.

Interesting point. Before and after recovering driver version is the same. 
Before recovering:
```
$ nvidia-smi
Tue May 26 11:00:45 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 595.71.05              Driver Version: 595.71.05      CUDA 
Version: 13.2     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile 
Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  
Compute M. |
|                                         |                        |            
   MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3060 Ti     Off |   00000000:07:00.0 Off |            
      N/A |
| 33%   29C    P8              8W /  200W |     206MiB /   8192MiB |      0%    
  Default |
|                                         |                        |            
      N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                    
          |
|  GPU   GI   CI              PID   Type   Process name                        
GPU Memory |
|        ID   ID                                                               
Usage      |
|=========================================================================================|
|    0   N/A  N/A            3446      G   /usr/bin/gnome-shell                 
   166MiB |
|    0   N/A  N/A            5127      G   /usr/bin/Xwayland                    
     3MiB |
+-----------------------------------------------------------------------------------------+
```
After recovering:
```
$ nvidia-smi
Tue May 26 12:56:27 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 595.71.05              Driver Version: 595.71.05      CUDA 
Version: 13.2     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile 
Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  
Compute M. |
|                                         |                        |            
   MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce RTX 3060 Ti     Off |   00000000:07:00.0  On |            
      N/A |
| 33%   34C    P8             17W /  200W |     206MiB /   8192MiB |      0%    
  Default |
|                                         |                        |            
      N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                    
          |
|  GPU   GI   CI              PID   Type   Process name                        
GPU Memory |
|        ID   ID                                                               
Usage      |
|=========================================================================================|
|    0   N/A  N/A            3393      G   /usr/bin/gnome-shell                 
   167MiB |
|    0   N/A  N/A            4839      G   /usr/bin/Xwayland                    
     3MiB |
+-----------------------------------------------------------------------------------------+
```

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: nvidia-driver-595-open 595.71.05-0ubuntu0.26.04.1
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue May 26 13:51:50 2026
InstallationDate: Installed on 2024-08-19 (645 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
SourcePackage: nvidia-graphics-drivers-595
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: nvidia-graphics-drivers-595 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolute wayland-session

** Attachment added: "photo of display when problem"
   
https://bugs.launchpad.net/bugs/2154254/+attachment/5973579/+files/Nvidia%20gray%20screen%20instead%20of%20GDM.webp

-- 
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https://bugs.launchpad.net/bugs/2154254

Title:
  Nvidia gray screen instead of GDM

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