crash xorg

[Josué Casado Rabasco]

Randomly, system (Ubuntu 20.04) crashes and login screen appears.

apt-cache policy xorg

xorg:
  Instalados: 1:7.7+19ubuntu14
  Candidato: 1:7.7+19ubuntu14
  Tabla de versión:
 *** 1:7.7+19ubuntu14 500
        500 http://es.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

file at var/crash says:

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 23 17:15:15 2022
DistroRelease: Ubuntu 20.04
ExecutablePath: /usr/lib/xorg/Xorg
ExecutableTimestamp: 1639491253
ProcCmdline: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3
ProcCwd: /home/tidop
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcMaps:
 55742c038000-55742c075000 r--p 00000000 08:12 12976830 /usr/lib/xorg/Xorg
 55742c075000-55742c207000 r-xp 0003d000 08:12 12976830 /usr/lib/xorg/Xorg
 55742c207000-55742c280000 r--p 001cf000 08:12 12976830 /usr/lib/xorg/Xorg
 55742c280000-55742c284000 r--p 00247000 08:12 12976830 /usr/lib/xorg/Xorg
 55742c284000-55742c28f000 rw-p 0024b000 08:12 12976830 /usr/lib/xorg/Xorg
 55742c28f000-55742c2cd000 rw-p 00000000 00:00 0
 55742d4a5000-557439da6000 rw-p 00000000 00:00 0 [heap]
 7fe3c0000000-7fe3c0021000 rw-p 00000000 00:00 0
 7fe3c0021000-7fe3c4000000 ---p 00000000 00:00 0
 7fe3c4000000-7fe3c4021000 rw-p 00000000 00:00 0
 7fe3c4021000-7fe3c8000000 ---p 00000000 00:00 0
 7fe3c8000000-7fe3c8021000 rw-p 00000000 00:00 0

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.13.0-37.42~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
BootLog: Error: [Errno 13] Permiso denegado: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 24 10:15:01 2022
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation Device [10de:2489] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: eVga.com. Corp. Device [3842:4667]
InstallationDate: Installed on 2022-02-11 (40 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
MachineType: ASUS System Product Name
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-37-generic root=UUID=bcea4888-7b37-4ace-a9da-8a0a74fce240 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2021
dmi.bios.release: 10.17
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1017
dmi.board.asset.tag: Default string
dmi.board.name: ROG STRIX B560-F GAMING WIFI
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1017:bd07/12/2021:br10.17:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXB560-FGAMINGWIFI:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx 21.2.6-0ubuntu0.1~20.04.2
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
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

[Daniel van Vugt (vanvugt)]

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.

[Josué Casado Rabasco (geofisue)]

Hi, when I do ubuntu-bug /var/crash/_usr_lib_xorg_Xorg.1000.crash it appears a window saying Ubuntu 20.04 has experimented an internal error. I don't know where to look at the ID here, but in 'show details' I see:
ExecutablePath
/usr/lib/xorg/Xorg
Package
xserver-sorg-core 2:1.20.13-1ubuntu1~20.04.2
ProblemaType
Crash
Title
Xorg assert failure: Xorg: ../../../../../../include/privates.h:121:dixGetPrivateAddr:Assertion `key->initialized' failed.
.
.
.
BootLog
Error: [Errno 13] Permit denied: '/var/log/boot.log'
...

And some others. I also press the send button.
On the other hand, I cannot open whoopsie-id file due to permit issues.

[Josué Casado Rabasco (geofisue)]

Ok, I manage to do step 2. There were two links. Here it is the direction:
https://errors.ubuntu.com/user/5daba6cd6c1de01072b18f684b9c63f7377a5c384123d52f78286ea072e3e6183789589e311daebef2abeab83519bd813eb1aaaefc244da95bc540b9a62283eb

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1861609, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.