Comment 4 for bug 513423

Please run apport-collect 513423 to attach the logs we need to this bug to help you troubleshoot it. Most likely what is happening is a KMS driver is claiming your device, and you'd want to use blacklist=driver (nouveau, radeon, or i915) to stop it which will stop fbcon from loading for it. Or if you want to continue using it video=device:resolution if its a resolution specific problem. More information on what you are trying to accomplish would help as well. To blacklist vga16fb you would boot with blacklist=vga16fb.