If "all apps crashed" then it's probably the display server... Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps:
1. Look in /var/crash for crash files and if found run: ubuntu-bug YOURFILE.crash Then tell us the ID of the newly-created bug. 2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us. 3. If step 2 also failed then apply the workaround from bug 994921, reboot, reproduce the crash, and retry step 1. Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself. ** Changed in: xorg-server (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1927767 Title: All apps crashed in my X11 session, then terminal console crashed, reboot failed Status in xorg-server package in Ubuntu: Incomplete Bug description: The reboot failed with many services that could not stop. I think there may have been a crash in the network stack. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-16-generic 5.11.0-16.17 ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12 Uname: Linux 5.11.0-16-generic x86_64 ApportVersion: 2.20.11-0ubuntu65 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: tim 4093 F.... pulseaudio /dev/snd/controlC2: tim 4093 F.... pulseaudio /dev/snd/controlC0: tim 4093 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sat May 8 03:07:12 2021 InstallationDate: Installed on 2020-11-22 (166 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) MachineType: Gigabyte Technology Co., Ltd. X570 AORUS ELITE WIFI ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.11.0-16-generic root=/dev/mapper/vgubuntu-root ro quiet splash acpi_enforce_resources=lax mitigations=off crashkernel=192M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.11.0-16-generic N/A linux-backports-modules-5.11.0-16-generic N/A linux-firmware 1.197 SourcePackage: linux StagingDrivers: ashmem_linux UpgradeStatus: Upgraded to hirsute on 2021-04-23 (14 days ago) dmi.bios.date: 03/25/2021 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: F33g dmi.board.asset.tag: Default string dmi.board.name: X570 AORUS ELITE WIFI dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrF33g:bd03/25/2021:br5.17:svnGigabyteTechnologyCo.,Ltd.:pnX570AORUSELITEWIFI:pvr-CF:rvnGigabyteTechnologyCo.,Ltd.:rnX570AORUSELITEWIFI:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: X570 MB dmi.product.name: X570 AORUS ELITE WIFI dmi.product.sku: Default string dmi.product.version: -CF dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1927767/+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