System freeze

[Bharat Ghaviul]

Screen freezes randomly. Keyboard and mouse do not work at that time. I am not able to ssh to the computer or access tty. I am able to do only a hard reset. I tried some troubleshooting myself, but with my novice expertise with ubuntu. The freeze is more or less random. But it is possibly more frequent when running a video, like a youtube video in a browser. Freeze is more frequenty when going full screen with a video, a VM machine or a remote desktop through vnc4server.
1. Tried removing some software like chrome, dropbox, virtualbox, etc. That did not help.
2. Tried reverting back to an older version of Ubuntu, like 16.04 with a 4.15 kernel. That did not help either.
3. Tried other distros like Mint and Fedora. Still had problem.
4. Tried running with NVidia driver and xserver-xorg. The problem occured with both.
5. Tried NVidia as well as Integrated Intel graphics cards. Problem occured in both.
6. Tried all the suggestions in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798961 that were applicable. None of the suggestions helped.
7. Finally tried Windows 7 and there was no problem. Tested for 12 hours and experienced no crash/freeze with youtube running.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
Uname: Linux 5.4.0-33-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 440.64 Fri Feb 21 01:17:26 UTC 2020
 GCC version:
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun May 31 12:36:17 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GpuHangFrequency: Several times a day
GpuHangReproducibility: Seems to happen randomly
GpuHangStarted: Since before I upgraded
GraphicsCard:
 NVIDIA Corporation GK107 [GeForce GTX 650] [10de:0fc6] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: eVga.com. Corp. GK107 [GeForce GTX 650] [3842:2651]
InstallationDate: Installed on 2020-05-31 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: ASUS All Series
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=4b614f0e-95f5-4cc7-8157-bf617c9b1571 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/18/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2201
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H87M-E
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2201:bd06/18/2015:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH87M-E:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.sku: All
dmi.product.version: System Version
dmi.sys.vendor: ASUS
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
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 N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

If you can't ssh in then that sounds like a kernel problem. So please:

1. Reproduce the freeze again.

2. Reboot only once.

3. Run:

   journalctl -b-1 > prevboot.txt

   and attach the resulting text file here.

[Bharat Ghaviul (bharatghaviul)]

I was not getting system freeze for a while. But, in the last two days, it froze three times. All three times I was watching a video or in a Google Meet meeting. I am attaching the output to "journalctl -b-1" from the last freeze.

[Kai-Heng Feng (kaihengfeng)]

Nothing suspicious from the log. Can magic key reboot the system?

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7

[Bharat Ghaviul (bharatghaviul)]

No. REISUB doesn't work. Mouse and keyboard doesn't work during the freeze. I am not able to open a tty or ssh to the system. It is exactly like what is described in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798961. But none of the solutions worked for me, including removing xserver-xorg-video-intel. I will try using the new kernel.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]