Ubuntu
update-manager package

  1. Bug #197581
  2. Comment #13

Comment 13 for bug 197581

Revision history for this message
Jean-Baptiste Lallement (jibel) wrote : Re: update-manager crashed with RuntimeError in <module>() : RuntimeError: could not open display

Thanks for your feedback. Because update-manager is a GUI application it needs an xserver and the environment variable DISPLAY determines how it should connect to that server. There is no DISPLAY set by default on a tty and update-manager is not intended to be launched from a tty unless you know what you are doing.
So I'm closing this report because it's not a bug in Ubuntu. Thanks.