Updating MESA or Linux kernel does not solve the issue. I'll take this issue to AMD developers working on AMD DC support.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1837945 Title: AMD RX 570 Black Screen at boot Status in xserver-xorg-video-amdgpu package in Ubuntu: Incomplete Bug description: Ubuntu 19.04 Problem: Booting from live media OR installed ubuntu fails with a blank, black screen and total system hang. How to reproduce: Using AMDGpu driver and AMD 4th Gen GCN GPU, try to boot Ubuntu 19.04 (or 18.04) Resolution: Manually updating kernel to 5.1 and adding the "amdgpu.dc=0" kernel boot parameter seems to fix the problem. inxi -SGxxx Output: System: Host: ---- Kernel: 5.1.0-050100-generic x86_64 bits: 64 compiler: gcc v: 8.3.0 Desktop: Gnome 3.32.1 wm: gnome-shell dm: GDM3 3.32.0 Distro: Ubuntu 19.04 (Disco Dingo) Graphics: Device-1: AMD Ellesmere [Radeon RX 470/480/570/570X/580/580X] driver: amdgpu v: kernel bus ID: 07:00.0 chip ID: 1002:67df Display: x11 server: X.Org 1.20.4 driver: ati,fbdev unloaded: modesetting,radeon,vesa compositor: gnome-shell resolution: 1920x1080~60Hz OpenGL: renderer: Radeon RX 570 Series (POLARIS10 DRM 3.30.0 5.1.0-050100-generic LLVM 8.0.0) v: 4.5 Mesa 19.0.2 direct render: Yes --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu27.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME DistUpgraded: Fresh install DistroCodename: disco DistroRelease: Ubuntu 19.04 DistroVariant: ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X] [1002:67df] (rev ef) (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] [1002:0b31] InstallationDate: Installed on 2019-07-26 (0 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: System manufacturer System Product Name Package: xserver-xorg-video-amdgpu 19.0.1-1 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-21-generic root=UUID=d779e62a-1fa2-404f-97a3-5649f11998c2 ro quiet splash amdgpu.dc=0 vt.handoff=1 ProcVersionSignature: Ubuntu 5.0.0-21.22-generic 5.0.15 Tags: disco ubuntu Uname: Linux 5.0.0-21-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/18/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5007 dmi.board.asset.tag: Default string dmi.board.name: PRIME A320M-K dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5007:bd06/18/2019:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEA320M-K:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.97-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.2-1ubuntu1.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.4-1ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20180925-2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-amdgpu/+bug/1837945/+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
