It sounds like the same issue as this. Next time it happens, try running: grep . /sys/class/drm/*/modes
to see what modes are available from the kernel. It's also suspicious that only Ubuntu 20.04 has been mentioned which makes me think this might have been fixed in later releases already. Please install 22.04 when you can: https://ubuntu.com/download/desktop -- 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/1879402 Title: [amdgpu] Proper monitor resolution/refresh rate not available Status in linux package in Ubuntu: Confirmed Status in xserver-xorg-video-amdgpu package in Ubuntu: New Bug description: I'm currently (in Ubuntu 20.04) stuck with this low resolution: 640x480 59.94*, what I want to have is the monitor specs: 1080p and 144 Hz. This problem appeared after plugging in my old monitor after 2 years again, it's a philips 272G5DYEB. Things that I unsuccesfully tried to get a proper resolution: -Use different GPUs from different vendors: 1050 ti and 5700 xt. Use different drivers: propritary and open source -Change resolution via xrandr addmode/newmode (leads to "no signal" from monitor) -Using "GRUB_GFXMODE" config in grub (no change) -Searching through logs, only useleful thing I found was in the Xorg log: [ 12.117] (II) AMDGPU(0): EDID for output DisplayPort-0 [ 12.117] (II) AMDGPU(0): Printing probed modes for output DisplayPort-0 [ 12.117] (II) AMDGPU(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) -In Windows the resolution works fine -Both GPUs work fine with a different monitor I'm not sure how to proceed here nor do I know where the problem lies. I assume this to be a bug in Ubuntu because a bunch of different GPUs/drivers lead to this problem making it unlikely to be a driver problem. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 Uname: Linux 5.4.0-050400-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon May 18 22:16:58 2020 DistUpgraded: 2020-05-09 15:39:17,760 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process “./xorg_fix_proprietary.py” (No such file or directory) (8)) 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 c1) (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT] [1002:0b36] InstallationDate: Installed on 2019-11-26 (173 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Micro-Star International Co., Ltd. MS-7A34 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-050400-generic root=UUID=f3ec722e-f50e-43cf-8e55-3cbdb22a0592 ro drm.debug=0xe plymouth:debug SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to focal on 2020-05-09 (9 days ago) dmi.bios.date: 11/29/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.LQ dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B350 PC MATE (MS-7A34) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.LQ:bd11/29/2019:svnMicro-StarInternationalCo.,Ltd.:pnMS-7A34:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnB350PCMATE(MS-7A34):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0: dmi.product.family: To be filled by O.E.M. dmi.product.name: MS-7A34 dmi.product.sku: To be filled by O.E.M. dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101+git2005070630.c997ba~oibaf~f version.libgl1-mesa-dri: libgl1-mesa-dri 20.2~git2005181337.b5accb~oibaf~f version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2 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 xserver.bootTime: Tue Nov 26 22:01:15 2019 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.20.5+git20191008-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1879402/+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
