This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1743427 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/1743427 Title: Black screen with iMac 2011 and ATI Radeon 6970M Status in linux package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743427/+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