π ~1 min read
Table of contents
Symptom & Impact
System boots to a blank screen, blocking graphical login.
Environment & Reproduction
Ubuntu 16.04 desktop with proprietary NVIDIA driver installation.
Root Cause Analysis
Driver and kernel module mismatch or conflicting nouveau settings.
Quick Triage
Switch to TTY and inspect Xorg logs and nvidia module status.
Step-by-Step Diagnosis
Check loaded modules, blacklist config, and display manager startup.

Solution – Primary Fix
Purge bad driver, install compatible version, and rebuild initramfs.
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Solution – Alternative Approaches
Temporarily use nouveau driver until stable proprietary package is available.
Verification & Acceptance Criteria
Graphical session starts and hardware acceleration functions correctly.
Rollback Plan
Revert to previous driver snapshot and kernel combination.
Prevention & Hardening
Validate GPU driver compatibility matrix before deployment.
Related Errors & Cross-Refs
LightDM login loops and Xorg module errors may appear together.
Related tutorial: View the step-by-step tutorial for Ubuntu 16.04 LTS.
View all Ubuntu 16.04 LTS tutorials on the Tutorials Hub β
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
Ubuntu NVIDIA driver installation and troubleshooting notes.
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