I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the latest kernel that did not have this issue.
Can you test the following kernels and report back? v4.8 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8/ v4.9-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc1/ v4.9-rc4 http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc4 You don't have to test every kernel, just up until the kernel that first has this bug. ** Also affects: linux (Ubuntu Zesty) Importance: Medium Status: Confirmed ** Changed in: linux (Ubuntu Zesty) Importance: Medium => High ** Tags added: performing-bisect ** Tags added: zesty -- 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/1648524 Title: [AMD]Power-off/reboot stalls = no tty on Kernel 4.9.0.x Status in linux package in Ubuntu: Confirmed Status in linux source package in Zesty: Confirmed Bug description: I’m able to build and run custom Kernel if and only if I don’t shutdown or reboot. Otherwise, the process ends in a dead screen CRTL+ALT+xyz has no effect. Works fine up to Kernel 4.8.12. Apport is not showing anything. --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 InstallationDate: Installed on 2016-12-04 (4 days ago) InstallationMedia: Ubuntu-Kylin 16.10 "Yakkety Yak" - Alpha amd64 (20161010) Package: linux (not installed) Tags: yakkety Uname: Linux 4.8.12-040812-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: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: yy 1973 F.... pulseaudio /dev/snd/controlC0: yy 1973 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=59eb0b0f-016e-4fe4-85c5-6ec5d5e83bab InstallationDate: Installed on 2016-12-04 (4 days ago) InstallationMedia: Ubuntu-Kylin 16.10 "Yakkety Yak" - Alpha amd64 (20161010) MachineType: HP 24-b019 Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.9.0-9-generic root=/dev/mapper/ubuntu--kylin--vg-root ro locale=zh_CN quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.9.0-9.10-generic 4.9.0-rc8 RelatedPackageVersions: linux-restricted-modules-4.9.0-9-generic N/A linux-backports-modules-4.9.0-9-generic N/A linux-firmware 1.161.1 Tags: yakkety Uname: Linux 4.9.0-9-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 03/25/2016 dmi.bios.vendor: AMI dmi.bios.version: F.02 dmi.board.asset.tag: 8CC6351M4W dmi.board.name: 81B8 dmi.board.vendor: HP dmi.board.version: 0100 dmi.chassis.asset.tag: 8CC6351M4W dmi.chassis.type: 13 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnAMI:bvrF.02:bd03/25/2016:svnHP:pn24-b019:pvr:rvnHP:rn81B8:rvr0100:cvnHP:ct13:cvr: dmi.product.name: 24-b019 dmi.sys.vendor: HP --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 InstallationDate: Installed on 2016-12-04 (4 days ago) InstallationMedia: Ubuntu-Kylin 16.10 "Yakkety Yak" - Alpha amd64 (20161010) Package: linux (not installed) Tags: yakkety Uname: Linux 4.9.0-040900rc8-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: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: yy 1917 F.... pulseaudio /dev/snd/controlC0: yy 1917 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=59eb0b0f-016e-4fe4-85c5-6ec5d5e83bab InstallationDate: Installed on 2016-12-04 (4 days ago) InstallationMedia: Ubuntu-Kylin 16.10 "Yakkety Yak" - Alpha amd64 (20161010) MachineType: HP 24-b019 Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.9.0-10-generic root=/dev/mapper/ubuntu--kylin--vg-root ro locale=zh_CN quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.9.0-10.11-generic 4.9.0-rc8 RelatedPackageVersions: linux-restricted-modules-4.9.0-10-generic N/A linux-backports-modules-4.9.0-10-generic N/A linux-firmware 1.161.1 Tags: yakkety Uname: Linux 4.9.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 03/25/2016 dmi.bios.vendor: AMI dmi.bios.version: F.02 dmi.board.asset.tag: 8CC6351M4W dmi.board.name: 81B8 dmi.board.vendor: HP dmi.board.version: 0100 dmi.chassis.asset.tag: 8CC6351M4W dmi.chassis.type: 13 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnAMI:bvrF.02:bd03/25/2016:svnHP:pn24-b019:pvr:rvnHP:rn81B8:rvr0100:cvnHP:ct13:cvr: dmi.product.name: 24-b019 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1648524/+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