Ubuntu 20.04: system gets stuck on boot when using gdm3

Spread the love
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Everything was working fine until today. I tried to boot my laptop and got stuck. Alt+Enter shows the following:
PCIe Bus Error (1)
PCIe Bus Error (2)
and it hangs here. If I switch to lightdm then I can boot normally, but Wi-Fi doesn’t work (doesn’t see any networks). Anyway, lightdm seems like a workaround, so I want to fix gdm3. What I’ve tried:

Re-install gdm3. After that I can manually start the service with sudo systemctl start gdm3, switch to it with sudo dpkg-reconfigure gdm3. Unfortunately, after reboot I’m still facing the same issue
Add pci=nomsi before booting. This hangs the system even earlier (Alt+Enter does nothing)
Add pci=noaer before booting. This gets rid (or just hides?) of the PCIe bus error, but it hangs at the exact same place (gdm.service)

What puzzles me the most is that it was working yesterday without any problems. Not sure if this is helpful, but I tried to boot to Ubuntu 20.04 USB image and it worked. Gdm3 service was running, Wi-Fi works as well.
Let me know if any additional info is needed.

X ITM Cloud News

Marisa

Leave a Reply

Next Post

I can't find a driver for Radeon HD 7750 with suppor of DisplayPort 1.2 and MST for Ubuntu 20.04

Sat Sep 12 , 2020
Spread the love          I can’t find a driver for Radeon HD 7750 for Ubuntu 20.04 64 bit, that supports DisplayPort 1.2 and MST. Though my monitors use MST, they are duplicates, and there’s no way I can find to extend them from the main monitor. X ITM Cloud News
X- ITM

Cloud Computing – Consultancy – Development – Hosting – APIs – Legacy Systems

X-ITM Technology helps our customers across the entire enterprise technology stack with differentiated industry solutions. We modernize IT, optimize data architectures, and make everything secure, scalable and orchestrated across public, private and hybrid clouds.

This image has an empty alt attribute; its file name is x-itmdc.jpg

The enterprise technology stack includes ITO; Cloud and Security Services; Applications and Industry IP; Data, Analytics and Engineering Services; and Advisory.

Watch an animation of  X-ITM‘s Enterprise Technology Stack

We combine years of experience running mission-critical systems with the latest digital innovations to deliver better business outcomes and new levels of performance, competitiveness and experiences for our customers and their stakeholders.

X-ITM invests in three key drivers of growth: People, Customers and Operational Execution.

The company’s global scale, talent and innovation platforms serve 6,000 private and public-sector clients in 70 countries.

X-ITM’s extensive partner network helps drive collaboration and leverage technology independence. The company has established more than 200 industry-leading global Partner Network relationships, including 15 strategic partners: Amazon Web Services, AT&T, Dell Technologies, Google Cloud, HCL, HP, HPE, IBM, Micro Focus, Microsoft, Oracle, PwC, SAP, ServiceNow and VMware

.

X ITM