It seems you don't have Ubuntu kernel installed. So ubuntu-bug doesn't work. Perhaps apport-collect doesn't work either. Known steps to reproduce takes several hours.
Please add number of last working kernel. Also did you test v5.11-rc2? There could be useful information in system logs. You could look folder /var/log where dmesg.0 and Xorg.0.log.old are probably most useful files. -- 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/1909895 Title: display standby not wakeable Status in linux package in Ubuntu: Confirmed Bug description: Hello! And all the best for 2021. I am quite new to this, so please excuse if I am not getting it right. I am sleeping with music by night. Since I changed to kernel 5.10.4 my system cannot be "woken up" from display standby any more. I have a two minutes timer of inactivity to turn my display off. Everything works as expected when the display is in the standby state for a couple of hours. But when it is in this state for over 6 hours it cannot be woken up again. The screen stays black, the display stays in standby mode. In the background it seems the system works fine. I can change the volume of the still running music, can even alt-F4 close the music player (Audacious). I am running Ubuntu 20.04.1 LTS linux 5.10.4-051004-generic Kernel 5.10.4 Only some of the methods shown below this posts worked on my system for gathering more data, ubuntu-bug linux brought an error about a non existent package, cat /proc/version_sig... brought an error about file or folder not found. lspci-vnvn.log is attached. System specs: AMD 2400G using APU for display output, mesa drivers libegl-mesa 21.0~git2012200730.f9ceab~oibaf~f X370 chipset mainboard (biostar) 16GB RAM DDR4 2933 Please let me know if you need more data and how to gather it. Thank you! Rev --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2019-08-28 (494 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash Tags: focal Uname: Linux 5.10.4-051004-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: Upgraded to focal on 2020-04-24 (255 days ago) UserGroups: adm audio cdrom dialout dip fax lpadmin plugdev sambashare saned scanner sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1909895/+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