Display/Graphics bug

[Joshua Joseph Myers]

Ubuntu was perfect before updating it.

I ran the command sudo apt update. After that, my computer graphics have become choppy. I have attached a screenshot of the problem.

Description: Ubuntu 20.04.2 LTS
Release: 20.04

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)

Intel® HD Graphics 2500 (IVB GT1)
GNOME version 3.36.8
Windowing system X11

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-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: Sat May 1 19:20:51 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 6.1.16, 5.8.0-48-generic, x86_64: installed
 virtualbox, 6.1.16, 5.8.0-50-generic, x86_64: installed
DpkgLog:

ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [1028:0577]
InstallationDate: Installed on 2021-02-09 (80 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Dell Inc. OptiPlex 7010
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-50-generic root=UUID=8e9a679a-a7d5-4d98-8a50-1e4ab130a8d4 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump: Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 126: Error executing command as another user: Request dismissed
dmi.bios.date: 12/21/2015
dmi.bios.release: 4.6
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A21
dmi.board.name: 0WR7PY
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA21:bd12/21/2015:br4.6:svnDellInc.:pnOptiPlex7010:pvr01:rvnDellInc.:rn0WR7PY:rvrA03:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 7010
dmi.product.sku: OptiPlex 7010
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
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 2:1.20.9-2ubuntu1.2~20.04.2
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

[Joshua Joseph Myers (joshbot-debug)]

I found out what the issue was. The problem is the new linux kernal update Linux 5.8.0-50-generic.

After booting up with Linux 5.8.0-48-generic (the previous one), the problem is resolved

[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 1924624, 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.