The two consecutive test results sound like the desktop shell is being restarted after the first attempt fails.
Compiz requires hardware 3D acceleration (GPU) to be available through the X11 server. The X11 server does not require hardware 3D acceleration to run, which explains why the X server is running but not Compiz. The error messages reported in the attachments to this bug indicate the 3D acceleration is not working at the driver level, for whatever reason. The error described initially in this bug report resembles bug #1346096. Perhaps the same solution suggested there will solve this problem as well? -- 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/1359299 Title: utopic 3.16.0-9 iso boots to desktop no unity Status in “unity” package in Ubuntu: Confirmed Bug description: Intel Core 2 Duo 3 gHz 4 gb Lenovo Think Centre. Boots 3.16.0-6 amd64 fine, runs compiz 3D fine. Today's amd64 iso download, 20 August, boots to desktop & cursor. No unity. Did ubuntu-bug from command line on the booted iso, saved report. Booted 3.10.0-6 and ran ubuntu-bug apport on the saved file. Planet Ubuntu asked for results on 3.16.0-9 so this is my result. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-9-generic 3.16.0-9.14 ProcVersionSignature: Ubuntu 3.16.0-9.14-generic 3.16.1 Uname: Linux 3.16.0-9-generic x86_64 ApportVersion: 2.14.6-0ubuntu2 Architecture: amd64 CasperVersion: 1.341 Date: Wed Aug 20 16:57:57 2014 LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140820) ProcEnviron: TERM=linux PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=/utopic-desktop-amd64.iso noprompt noeject SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/10/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 5CKT69AUS dmi.board.name: LENOVO dmi.chassis.vendor: LENOVO dmi.chassis.version: NONE dmi.modalias: dmi:bvnLENOVO:bvr5CKT69AUS:bd01/10/2011:svnLENOVO:pn6234A1U:pvrThinkCentreM58p:rvnLENOVO:rnLENOVO:rvrNONE:cvnLENOVO:ct3:cvrNONE: dmi.product.name: 6234A1U dmi.product.version: ThinkCentre M58p dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1359299/+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