apport information ** Tags added: apport-collected artful
** Description changed: Dear community! I have installed Ubuntu 17.10 (also tried 17.04 and 16.04), and the system gets a black screen on boot with all tested Ubuntu versions. Also ping and ssh to the host does not work. The fan's are running, the screen is black and nothing more. When i insert in Grub nomodeset, the system can boot. I have also tested Kernel 4.14 and 4.15RC7. Hardware Information: 00:02.0 Display controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Blackcomb [Radeon HD 6970M/6990M] Thanks for help or any hint. Best regards, Hans + --- + ApportVersion: 2.20.7-0ubuntu3.7 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: christian 1756 F.... pulseaudio + /dev/snd/controlC1: christian 1756 F.... pulseaudio + DistroRelease: Ubuntu 17.10 + HibernationDevice: RESUME=/dev/mapper/storage-swap + InstallationDate: Installed on 2018-01-15 (0 days ago) + InstallationMedia: Ubuntu-Server 17.10 "Artful Aardvark" - Release amd64 (20180108.1) + MachineType: Apple Inc. iMac12,2 + Package: linux (not installed) + ProcEnviron: + LANGUAGE= + TERM=xterm-256color + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/bin/bash + ProcFB: 0 EFI VGA + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-25-generic.efi.signed root=/dev/mapper/storage-root ro rootflags=subvol=@ nomodeset + ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-4.13.0-25-generic N/A + linux-backports-modules-4.13.0-25-generic N/A + linux-firmware 1.169.1 + Tags: artful + Uname: Linux 4.13.0-25-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 08/08/17 + dmi.bios.vendor: Apple Inc. + dmi.bios.version: IM121.88Z.004D.B00.1708080012 + dmi.board.name: Mac-942B59F58194171B + dmi.board.vendor: Apple Inc. + dmi.board.version: iMac12,2 + dmi.chassis.type: 13 + dmi.chassis.vendor: Apple Inc. + dmi.chassis.version: Mac-942B59F58194171B + dmi.modalias: dmi:bvnAppleInc.:bvrIM121.88Z.004D.B00.1708080012:bd08/08/17:svnAppleInc.:pniMac12,2:pvr1.0:rvnAppleInc.:rnMac-942B59F58194171B:rvriMac12,2:cvnAppleInc.:ct13:cvrMac-942B59F58194171B: + dmi.product.family: iMac + dmi.product.name: iMac12,2 + dmi.product.version: 1.0 + dmi.sys.vendor: Apple Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1743427/+attachment/5037460/+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/1743427 Title: Black screen with iMac 2011 and ATI Radeon 6970M To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs