Nicolas Jungers, to advise, you don't have to apport-collect further unless specifically requested to do so (also, it doesn't provide any useful data when you are booted into a mainline kernel).
Despite this, have you had a chance to review the dmesg.log? ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1406810/+attachment/4751582/+files/ProcEnviron.txt ** Attachment removed: "JournalErrors.txt" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1406810/+attachment/4751581/+files/JournalErrors.txt -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1406810 Title: [iMac11,1] Unable to boot Status in xorg package in Ubuntu: Incomplete Bug description: I'm unable to boot. WORKAROUND: Use kernel parameter: nomodeset The causes a sluggish display and an inability to wake up the screen after going to sleep. --- .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity DistUpgraded: Fresh install DistroCodename: trusty DistroRelease: Ubuntu 14.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV770/M98L [Mobility Radeon HD 4850] [1002:944a] (prog-if 00 [VGA controller]) Subsystem: Apple Inc. Device [106b:00b5] InstallationDate: Installed on 2015-01-01 (440 days ago) InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3) MachineType: Apple Inc. iMac11,1 Package: xorg 1:7.7+1ubuntu8.1 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-79-generic root=UUID=f19c8f84-1553-4a36-889a-acfb8a13da9a ro ProcVersionSignature: Ubuntu 3.13.0-79.123-generic 3.13.11-ckt33 Tags: trusty ubuntu compiz-0.9 Uname: Linux 3.13.0-79-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video _MarkForUpload: True dmi.bios.date: 03/17/10 dmi.bios.vendor: Apple Inc. dmi.bios.version: IM111.88Z.0034.B02.1003171314 dmi.board.name: Mac-F2268DAE dmi.board.vendor: Apple Inc. dmi.chassis.type: 13 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F2268DAE dmi.modalias: dmi:bvnAppleInc.:bvrIM111.88Z.0034.B02.1003171314:bd03/17/10:svnAppleInc.:pniMac11,1:pvr1.0:rvnAppleInc.:rnMac-F2268DAE:rvr:cvnAppleInc.:ct13:cvrMac-F2268DAE: dmi.product.name: iMac11,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1~ubuntu14.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.6 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.6 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.6 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Wed Mar 16 19:43:11 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.15.1-0ubuntu2.7 xserver.video_driver: radeon --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes InstallationDate: Installed on 2016-08-31 (29 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160408) Package: linux (not installed) Tags: xenial Uname: Linux 4.8.0-040800rc8-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1406810/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
