apport information ** Tags added: apport-collected
** Description changed: With a 27in 5k ( new as of two weeks ago) I'm unable to boot the kernel without parameter "acpi=off:", it also needs "nomodeset" into order to get a working system. The applies to both the live installer and a system installed on disk. With out the parameters 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. + --- + 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 ** Attachment added: "JournalErrors.txt" https://bugs.launchpad.net/bugs/1525615/+attachment/4536170/+files/JournalErrors.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1525615 Title: Ubuntu not booting on iMac 5K with ACPI enabled Status in linux package in Ubuntu: Incomplete Bug description: With a 27in 5k ( new as of two weeks ago) I'm unable to boot the kernel without parameter "acpi=off:", it also needs "nomodeset" into order to get a working system. The applies to both the live installer and a system installed on disk. With out the parameters 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. --- 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1525615/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp