This is going to confuse the situation but your kernel log CurrentDmesg.txt shows the kernel keeps crashing in the video4linux webcam code. I don't *think* that's related to this bug, but it is filling your kernel log with crash reports.
As for this bug... 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. ** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) ** Also affects: nvidia-graphics-drivers-435 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-435 (Ubuntu) Status: New => Incomplete ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete ** Tags added: nvidia -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1899766 Title: Xorg freeze after selecting large cursor Status in nvidia-graphics-drivers-435 package in Ubuntu: Incomplete Status in xorg-server package in Ubuntu: Incomplete Bug description: After selecting the largest cursor in accessibility settings, the whole system froze. I had to use Magic SysRq to reboot the system. After reboot, the login screen was OK but after logging in it would immediately freeze again. Workaround: from login screen, switch to a VT with Ctrl-F2, log in and run dconf reset /org/gnome/desktop/interface/cursor-size I was playing with the cursor size because I see different cursor sizes in different apps and it was annoying me. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60 Uname: Linux 5.4.0-48-generic x86_64 NonfreeKernelModules: lkp_Ubuntu_5_4_0_48_52_generic_72 nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 435.21 Sun Aug 25 08:17:57 CDT 2019 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2) ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Oct 14 11:25:23 2020 DistUpgraded: 2020-05-02 16:08:06,720 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: This is the first time GraphicsCard: Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller]) Subsystem: Dell UHD Graphics 630 (Mobile) [1028:087d] Subsystem: Dell GP107GLM [Quadro P2000 Mobile] [1028:087d] InstallationDate: Installed on 2018-12-11 (672 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: Dell Inc. Precision 5530 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-48-generic root=/dev/mapper/ubuntu--vg-root ro mem_sleep_default=deep resume=/dev/disk/by-uuid/01f98d09-5f44-4469-904b-c976fbd46d96 quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to focal on 2020-05-02 (164 days ago) dmi.bios.date: 07/09/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.17.1 dmi.board.name: 0FP2W2 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.17.1:bd07/09/2020:svnDellInc.:pnPrecision5530:pvr:rvnDellInc.:rn0FP2W2:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 5530 dmi.product.sku: 087D dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4 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/nvidia-graphics-drivers-435/+bug/1899766/+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