Thanks for the bug report. Your kernel log appears to be flooded with errors about PCI device 8086:2f03 which is the "PCI Express Root Port 1". That doesn't really tell us what the problem is, except that it's either a hardware or kernel problem. I'm guessing it might be related to the nouveau kernel driver.
Please reboot into the grub menu (tap Esc before Ubuntu starts), and try booting an older kernel if you have one. If you don't have one then please try some older and newer kernels like: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.103/ https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11.4/ ** Summary changed: - Xorg freeze + Xorg freeze when using nouveau ** Tags added: nouveau ** Package changed: xorg-server (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/1917974 Title: Xorg freeze when using nouveau Status in linux package in Ubuntu: Incomplete Bug description: I had been using the recommended nvidia driver (nvidia-driver-460). I recently changed to xserver-xorg-video-nouveau for the following reasons: 1) The resolution configuration was not saved. It is, every power off and power on the resolution restarted to low resolution. 2) The syslog file in /var/log/ constantly was filled with logs (may be with a rate of 1 GB per hour), then, I was enforced to install busybox-syslogd to stop the logging and continue with activities. 3) When using xserver-xorg-video-nouveau, in contrast with nvidia- driver-460, i didn't had to reset the resolution configuration, which was great, but now the screen is constantly freezing and i had to use alt+SysRq+REISUB two times in a day ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-44-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Mar 5 22:59:16 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a week GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Today GraphicsCard: NVIDIA Corporation GP108 [GeForce GT 1030] [10de:1d01] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd GP108 [GeForce GT 1030] [1458:375c] InstallationDate: Installed on 2021-02-27 (7 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) MachineType: Default string Default string ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-44-generic root=UUID=28228923-7b88-4688-b9fd-157d9ebc22df ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/03/2020 dmi.bios.release: 5.11 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5.11 dmi.board.asset.tag: Default string dmi.board.name: X99-k9 dmi.board.vendor: MACHINIST dmi.board.version: V1.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.11:bd06/03/2020:br5.11:svnDefaultstring:pnDefaultstring:pvrDefaultstring:rvnMACHINIST:rnX99-k9:rvrV1.0:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: Default string dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Default string version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1917974/+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