Public bug reported: I'll add detail later likely package should be xserver-xorg-video-nouveau
I've had this issue before on eoan on hp dx6120 i believe but cannot find bug report (likely not filed as that box was i386 & support was being dropped when I noticed it; ie. pre-release) ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: linux-image-5.8.0-18-generic 5.8.0-18.19 ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4 Uname: Linux 5.8.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu45 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: guiverc 1095 F.... pulseaudio /dev/snd/controlC0: guiverc 1095 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: LXQt CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted Date: Thu Sep 17 11:13:50 2020 InstallationDate: Installed on 2021-09-17 (-365 days ago) InstallationMedia: Lubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200916) IwConfig: lo no wireless extensions. eno1 no wireless extensions. Lsusb: Bus 002 Device 003: ID 046d:c534 Logitech, Inc. Unifying Receiver Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. OptiPlex 990 ProcFB: 0 nouveaudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-18-generic root=UUID=c29a66dc-4cfc-4dc1-9fe7-3c9d8a8ab4a1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.8.0-18-generic N/A linux-backports-modules-5.8.0-18-generic N/A linux-firmware 1.190 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/05/2017 dmi.bios.release: 4.6 dmi.bios.vendor: Dell Inc. dmi.bios.version: A20 dmi.board.name: 06D7TR dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA20:bd05/05/2017:br4.6:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn06D7TR:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 990 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: amd64 apport-bug groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1895905 Title: lubuntu groovy; flashing of sddm greeter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs