Your kernel log is showing a crash in the Nvidia kernel driver which may or may not be related: [27603.845573] gpu_i2c_master_xfer+0xf5/0x23b [i2c_nvidia_gpu]
Also, if the mouse moves then that means Xorg is still working. It's only Gnome Shell that has stopped responding. Please start by following these instructions: 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) => gnome-shell (Ubuntu) ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1855938 Title: Screen freezes and only mouse moves Status in gnome-shell package in Ubuntu: Incomplete Bug description: The screen freezes but the mouse can be moved. SSH access works. This is on Legion Y545, Ubuntu 19.10 Nvidia Geforce 1660Ti Intel 9750h Symptoms: This only happens when: Nvidia-Prime is selected as "on-demand" And maybe most likely after the laptop comes out of sleep. xserver-xorg-video-intel is the latest :: 2:2.99.917+git20190815-1 If I choose prime-select "nvidia", this never happens. Makes me believe this has to do with intel video drivers. Error trace: GpuWatchdog[22171]: segfault at 0 ip 000056163556379d sp 00007fdeb6dd8480 error 6 in chrome[561631628000+7170000] Dec 10 14:43:57 Legion-Y545 kernel: [27680.533760] Code: 48 c1 c9 03 48 81 f9 af 00 00 00 0f 87 c9 00 00 00 48 8d 15 29 61 9c fb f6 04 11 20 0f 84 b8 00 00 00 be 01 00 00 00 ff 50 30 <c7> 04 25 00 00 00 00 37 13 00 00 c6 05 11 6a a4 03 01 80 7d 8f 00 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: xorg 1:7.7+19ubuntu12 ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10 Uname: Linux 5.3.0-24-generic x86_64 NonfreeKernelModules: 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 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2) ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' Date: Tue Dec 10 15:01:38 2019 DistUpgraded: Fresh install DistroCodename: eoan DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller]) Subsystem: Lenovo UHD Graphics 630 (Mobile) [17aa:3ffc] NVIDIA Corporation TU116M [GeForce GTX 1660 Ti Mobile] [10de:2191] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Lenovo TU116M [GeForce GTX 1660 Mobile] [17aa:3ffc] InstallationDate: Installed on 2019-10-23 (48 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 048d:c100 Integrated Technology Express, Inc. ITE Device(8910) Bus 001 Device 002: ID 13d3:56a6 IMC Networks Integrated Camera Bus 001 Device 004: ID 8087:0aaa Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 81Q6 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-24-generic root=UUID=8155cfb7-305e-41c0-9d80-fdf15d29e196 ro acpi=force SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/10/2019 dmi.bios.vendor: LENOVO dmi.bios.version: BHCN33WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Legion Y545 dmi.modalias: dmi:bvnLENOVO:bvrBHCN33WW:bd10/10/2019:svnLENOVO:pn81Q6:pvrLegionY545:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegionY545: dmi.product.family: Legion Y545 dmi.product.name: 81Q6 dmi.product.sku: LENOVO_MT_81Q6_BU_idea_FM_Legion Y545 dmi.product.version: Legion Y545 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.99-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.1-1ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1855938/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp