Lucid upgrade makes Mythbuntu my default session

[Jeroen T. Vermeulen]

After upgrading to Lucid, my default session was suddenly Mythbuntu. So my first impressions after the upgrade were:

 * The logo page says "mythbuntu" instead of "ubuntu"—puzzling but given the new branding, not a clear indication that something is wrong.

 * My session comes up as a black screen with no usable features except a clock in an otherwise empty task bar. No icons, no menus.

Explicitly picking "Gnome session" as the login session gets around it, though this isn't exactly obvious.

I'm not sure why this happened. Maybe I installed and un-installed mythtv at some point in the past, or maybe it's because I un-installed compiz to get around graphics driver problems, and so may have had to remove the main ubuntu dependencies package as well. This was a complete upgrade, not the known "partial upgrade" issue.

[Gabe Gorelick (gabegorelick)]

Did you have the mythbuntu packages installed before the update, or were they just installed when you updated to Lucid? Probably what happened is the update-manager saw you had the mythbuntu packages installed and then thought that you wanted a mythbuntu session. If you don't want mythbuntu, you can uninstall it, or there should be a way to change it so that gnome is your default session.

[MarcRandolph (mrand)]

Jeroen, could you please read over https://bugs.launchpad.net/bugs/550237 and report back if this describes your problem. If the version of plymouth installed on your machine isn't at least the version described there, could you please update and report back?

[Jeroen T. Vermeulen (jtv)]

I don't think I ever had mythtv installed on this machine; certainly not mythbuntu. This does look like the same thing as bug 550237 to me. I got around it by picking a different session type on login though, rather than by uninstalling packages. And I get Ubuntu branding now, not Mythbuntu. None of plymouth-theme-ubuntu-text, lubuntu-plymouth-theme, or
mythbuntu-default-settings was on my system though. (I may have removed the mythbuntu package myself earlier on).

@Marc: no need to paste bug URLs; just write "bug" followed by the bug number and Launchpad will linkify it for you.

[Gabe Gorelick (gabegorelick)]

Glad this is fixed. I'm gonna mark this as a duplicate of bug 550237, which appears to be fixed now, since they do look the same. If you disagree, feel free to unmark. Thanks.