Jonathan_Goodwin
May 13th, 2016, 10:00 AM
Yesterday, I upgraded from 14.04 LTS to 16.04 LTS in hopes of better OpenGL support for my Haswell based laptop (oops).
Ubuntu boots. The background screen with icons on top right appear. I can successfully login as myself or guest. Once logged in, the screen blinks, and clears to the Ubuntu background screen, and nothing else appears (no launchpad, no top icons, etc.). I can do Ctl-Alt-F1 to use the console. I can also right click and open up a console window. All windows that I open (e.g., the console window and Gedit) have no title bar (and therefore no close,minimize, maximize buttons).
After hours of research and experimentation, none of the various proposed apt-get options fixed anything: -f install, update, dist-upgrade, install --reinstall ubuntu-desktop unity.
Also unhelpful was: dconf reset -f /org/compiz/
One command that does make the title bars appear (until re-loading Unity or re-booting) was: "rm -rf ~/.config". However, it does not re-engage Unity.
Experiments running various programs yielded error messages that might be related to this problem. For example, running "update-manager" from the console window spit out three PyGIWarnings related to Gtk, Dbusmenu and Unity, which look like this:
PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
Similarly, running another program generates an import error related to Python GI trying to load the _gtk shared object and failing to find Undefined symbol FT_Reference_Face.
It makes me wonder if multiple versions of Python, Python Gobject Introspection and/or Gtk, some from 14.04 or earlier and a different set for 16.04, are confusing each other. Perhaps such shared object loading problems could also cause Unity to fail to launch properly, since it too depends on Gtk. I know too little about how they play together to risk un-installing packages willy-nilly.
I would appreciate any suggestions. Thank you
Ubuntu boots. The background screen with icons on top right appear. I can successfully login as myself or guest. Once logged in, the screen blinks, and clears to the Ubuntu background screen, and nothing else appears (no launchpad, no top icons, etc.). I can do Ctl-Alt-F1 to use the console. I can also right click and open up a console window. All windows that I open (e.g., the console window and Gedit) have no title bar (and therefore no close,minimize, maximize buttons).
After hours of research and experimentation, none of the various proposed apt-get options fixed anything: -f install, update, dist-upgrade, install --reinstall ubuntu-desktop unity.
Also unhelpful was: dconf reset -f /org/compiz/
One command that does make the title bars appear (until re-loading Unity or re-booting) was: "rm -rf ~/.config". However, it does not re-engage Unity.
Experiments running various programs yielded error messages that might be related to this problem. For example, running "update-manager" from the console window spit out three PyGIWarnings related to Gtk, Dbusmenu and Unity, which look like this:
PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
Similarly, running another program generates an import error related to Python GI trying to load the _gtk shared object and failing to find Undefined symbol FT_Reference_Face.
It makes me wonder if multiple versions of Python, Python Gobject Introspection and/or Gtk, some from 14.04 or earlier and a different set for 16.04, are confusing each other. Perhaps such shared object loading problems could also cause Unity to fail to launch properly, since it too depends on Gtk. I know too little about how they play together to risk un-installing packages willy-nilly.
I would appreciate any suggestions. Thank you