** Description changed: - Dear community! + Using Ubuntu 16.04 through 17.10, when I boot the screen is black, ping + and ssh to the host does not work, and the fan is running. Same problem + with kernel 4.14 and 4.15RC7. - 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. + WORKAROUND: Use kernel parameter: + nomodeset - 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 + 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 + 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. + 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 + 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.
** Tags added: kernel-bug-exists-upstream-4.15-rc7 xenial zesty -- 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
