** Summary changed: - black screen before login on 5.4 kernel + [amdgpu] black screen before login on 5.4 kernel
** Tags added: amdgpu ** Summary changed: - [amdgpu] black screen before login on 5.4 kernel + [amdgpu] black screen before login on 5.4 kernel, but iommu=soft fixes it ** Package changed: gdm3 (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1876835 Title: [amdgpu] black screen before login on 5.4 kernel, but iommu=soft fixes it Status in linux package in Ubuntu: New Bug description: Black screen after grub menu, selected kernel 5.4.0-29-generic and can't login, have to shut down laptop by pressing power button, or Alt + SysRq + REISUB(O), and when those dont work a hard power off. I have installed linux-signed-oem-5.6 and ppa.launchpad.net/oibaf /graphics-drivers/ubuntu as a workaround the this problem ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gdm3 3.34.1-1ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue May 5 01:25:40 2020 InstallationDate: Installed on 2020-05-03 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.gdm3.custom.conf: 2020-05-04T14:16:57.900775 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1876835/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp