A piece of good news: I did get a working desktop when booting from the 14.10 installer, for the same architecture.
-- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1437765 Title: No desktop after upgrade to 14.10 Status in unity package in Ubuntu: New Bug description: After upgrading my desktop machine from 14.04 to 14.10, I no longer have a desktop. The login screen works, but after logging in, I get just the backdrop image and a mouse pointer. Nothing else. The pointer responds to mouse movements, and I can switch to a text console using ctrl-alt-F<n>, which is how I installed KDE in order to file this bug. But I can no longer open a terminal with ctrl-alt-T, or switch workspaces with ctrl-alt-<arrow>. My .xsession-errors after logging in showed: X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 155 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 22 Current serial number in output stream: 22 openConnection: connect: No such file or directory cannot connect to brltty at :0 Script for ibus started at run_im. Script for auto started at run_im. Script for default started at run_im. upstart: hud main process (2389) terminated with status 1 upstart: unity-settings-daemon main process (2393) terminated with status 1 upstart: unity7 main process (2405) terminated with status 1 upstart: gnome-session (Unity) main process (2411) terminated with status 1 upstart: unity-panel-service main process (2422) terminated with status 1 upstart: indicator-keyboard main process (2496) terminated with status 1 upstart: indicator-printers main process (2502) terminated with status 1 upstart: upstart-dbus-session-bridge main process (2366) terminated with status 1 upstart: indicator-bluetooth main process (2485) killed by TERM signal upstart: indicator-power main process (2486) killed by TERM signal upstart: indicator-datetime main process (2494) killed by TERM signal upstart: indicator-sound main process (2501) killed by TERM signal upstart: indicator-session main process (2503) killed by TERM signal upstart: indicator-application main process (2536) killed by TERM signal upstart: Disconnected from notified D-Bus bus This is quite a slow machine, so normally it'd take a while to complete a graphical login. But now, when I log in and immediately switch to a graphical console to run "top," it doesn't show much going on. External filesystem volumes are not auto-mounted under /media the way they usually are. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: unity 7.3.1+14.10.20141016-0ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7 Uname: Linux 3.16.0-33-generic i686 NonfreeKernelModules: fglrx ApportVersion: 2.14.7-0ubuntu8.2 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CurrentDesktop: KDE Date: Sun Mar 29 09:23:52 2015 InstallationDate: Installed on 2012-11-25 (853 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2) SourcePackage: unity UpgradeStatus: Upgraded to utopic on 2015-03-28 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1437765/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp