apport information ** Description changed:
With a 27in 5k ( new as of two weeks ago) I'm unable to boot. The applies to both the live installer and a system installed on disk. I just get a blank screen. It gives a blank screen event if the "quiet" is removed from the kernel parameters. The system has a 250G SSD. I'm using the Kubutu live installer for Wily off a USB stick. WORKAROUND: Use kernel parameters: acpi=off nomodeset --- ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: KDE DistroRelease: Ubuntu 15.10 InstallationDate: Installed on 2015-12-08 (9 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Package: linux (not installed) Tags: wily Uname: Linux 4.4.0-040400rc5-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True + --- + ApportVersion: 2.19.1-0ubuntu5 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: toivo 1330 F.... pulseaudio + /dev/snd/controlC1: toivo 1330 F.... pulseaudio + DistroRelease: Ubuntu 15.10 + InstallationDate: Installed on 2015-12-08 (14 days ago) + InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) + MachineType: Apple Inc. iMac17,1 + Package: linux (not installed) + ProcEnviron: + LANGUAGE=en_AU:en + TERM=xterm + PATH=(custom, no user) + LANG=en_AU.UTF-8 + SHELL=/usr/bin/zsh + ProcFB: 0 EFI VGA + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-21-generic.efi.signed root=UUID=0751bb9a-8e2b-439a-aca9-e29cf2dadb77 ro persistent acpi=off nomodeset + ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 + PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-4.2.0-21-generic N/A + linux-backports-modules-4.2.0-21-generic N/A + linux-firmware 1.149.3 + RfKill: + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no + Tags: wily + UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' + Uname: Linux 4.2.0-21-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 10/09/2015 + dmi.bios.vendor: Apple Inc. + dmi.bios.version: IM171.88Z.0105.B04.1510091442 + dmi.board.name: Mac-65CE76090165799A + dmi.board.vendor: Apple Inc. + dmi.board.version: iMac17,1 + dmi.chassis.type: 9 + dmi.chassis.vendor: Apple Inc. + dmi.chassis.version: Mac-65CE76090165799A + dmi.modalias: dmi:bvnAppleInc.:bvrIM171.88Z.0105.B04.1510091442:bd10/09/2015:svnAppleInc.:pniMac17,1:pvr1.0:rvnAppleInc.:rnMac-65CE76090165799A:rvriMac17,1:cvnAppleInc.:ct9:cvrMac-65CE76090165799A: + dmi.product.name: iMac17,1 + dmi.product.version: 1.0 + dmi.sys.vendor: Apple Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1525615/+attachment/4538685/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1525615 Title: Ubuntu not booting on iMac 5K with ACPI enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1525615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
