@kaihengfegn I guess I need this one: linux-image- unsigned-5.4.0-050400rc7-generic_5.4.0-050400rc7.201911102031_amd64.deb
as well as the corresponding headers and modules. but what does "unsigned" mean? -- 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/1848900 Title: [amdgpu] Blank display with Eoan Ermine live DVD on Ryzen 3 2200G Status in linux package in Ubuntu: Confirmed Status in xserver-xorg-video-amdgpu package in Ubuntu: Confirmed Bug description: Regression with Ryzen 3 2200G, UEFI Asrock B450 Pro4 motherboard and 55-75 Hz monitor. Booting Xubuntu 19.10 live iso with safe graphics options did give a stable desktop display, but xubuntu@xubuntu:~$ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080 default connected 1920x1080+0+0 0mm x 0mm 1920x1080 77.00* xubuntu@xubuntu:~$ The monitor is only supposed to have a maximum vertical refresh rate of 75 Hz. Xrandr reports 77 Hz as the only choice. The monitor reports 60 Hz, not that I trust the monitor. Swapping monitors and running many reboots the situation seems to be... Old versions of Ubuntu (Bionic and Dingo) can handle the hardware. Standard boot sometimes gives a blank screen. Standard boot sometimes gives a badly pixelated display (Ctl-Alt-F6, Ctl-Alt-F7 temporarily improves it). Connecting a 144 Hz monitor convinces something (the firmware?) that fast refreshes are OK on a slow monitor, or at least it fails to reread and abide by the slow monitor's limitations when swapping back. Something, I don't know what, convinces the computer to run the display at 60 Hz, sometimes. The motherboard has three video ports; DP, HDMI and VGA (using an onboard DP? to VGA converter chip). The fast monitor has DP, HDMI and VGA ports, but I only experimented with the DP connection. The slow monitor has VGA and DVI-D ports. I experimented with VGA to VGA and HDMI via a passive adapter to DVI. When running in the badly pixelated mode xorg seems to think that the VGA port is "DP-1". ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: xorg 1:7.7+19ubuntu12 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperVersion: 1.427 CompositorRunning: None CurrentDesktop: XFCE Date: Sun Oct 20 00:17:34 2019 DistUpgraded: Fresh install DistroCodename: eoan DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1002:15dd] (rev c8) (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1002:15dd] LiveMediaBuild: Xubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed quiet splash nomodeset --- SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/02/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P3.40 dmi.board.name: B450 Pro4 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.40:bd07/02/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnB450Pro4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.99-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 xserver.bootTime: Sat Oct 19 23:52:52 2019 xserver.configfile: default xserver.errors: open /dev/dri/card0: No such file or directory open /dev/dri/card0: No such file or directory Screen 0 deleted because of no matching config section. xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.20.5+git20191008-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1848900/+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