Can you please try again on kernel 5.8 and gather another log? The problem with the log in comment #6 is that it ends too early -- when the system suspends. And doesn't show anything about trying to resume from suspend. This is a common issue with these kinds of bugs. To make it more likely that a complete log is written please hit these keys after resuming from suspend (when the display isn't coming on):
Alt + SysRq + S and then reboot. Or you can do it all in one: (Holding Alt+SysRq) R,E,I,S,U,B https://en.wikipedia.org/wiki/Magic_SysRq_key -- 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/1890863 Title: [amdgpu] Display does not come on after suspend Status in linux package in Ubuntu: Incomplete Bug description: After coming out of suspend the display is not receiving any data and stays in power saving mode. Only power cycling the system brings it back. Unsure whether this is related to amdgpu or something else. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Aug 8 12:51:28 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT] [1002:731f] (rev c4) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT] [1458:2314] InstallationDate: Installed on 2020-01-08 (212 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200106) MachineType: System manufacturer System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=d1ce6274-5a98-4eab-93b4-393469cec0d9 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/05/2020 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2603 dmi.board.asset.tag: Default string dmi.board.name: TUF GAMING X570-PLUS (WI-FI) 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.:bvr2603:bd08/05/2020:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnTUFGAMINGX570-PLUS(WI-FI):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 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 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/linux/+bug/1890863/+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