The display is constantly flickering

[Surya Siddharthan]

The display is running on intel graphics and it is constantly flickering when rendering gnome related programs

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-7625.26~1603389471~20.04~f6b125f~dev-generic 5.8.14
Uname: Linux 5.8.0-7625-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/mig'
.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 455.28 Wed Sep 30 01:05:16 UTC 2020
 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted
Date: Thu Nov 5 09:45:30 2020
DistUpgraded: 2020-08-06 15:02:44,138 DEBUG inhibit gnome-session idle
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus: nvidia, 455.28, 5.8.0-7625-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller])
   Subsystem: Dell UHD Graphics 630 (Mobile) [1028:087c]
   Subsystem: Dell GP107M [GeForce GTX 1050 Ti Mobile] [1028:087c]
InstallationDate: Installed on 2020-07-23 (104 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 27c6:5395 Shenzhen Goodix Technology Co.,Ltd. Fingerprint Reader
 Bus 001 Device 002: ID 0cf3:e301 Qualcomm Atheros Communications
 Bus 001 Device 004: ID 0c45:671d Microdia Integrated_Webcam_HD
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. XPS 15 9570
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-7625-generic root=UUID=a1c36ce1-f1fe-444a-ace5-ef0166cc7adf ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to focal on 2020-08-06 (90 days ago)
dmi.bios.date: 07/09/2020
dmi.bios.release: 1.17
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.17.1
dmi.board.name: 0D0T05
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:br1.17:svnDellInc.:pnXPS159570:pvr:rvnDellInc.:rn0D0T05:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9570
dmi.product.sku: 087C
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

[Chris Guiver (guiverc)]

changed 'xorg' to 'xorg-server'

[Chris Guiver (guiverc)]

Thank you for taking the time to report this issue and helping to make Ubuntu better.

Can you please be more specific, you mention GNOME related programs, but which programs, when doing what etc?

It may also be helpful if you create a short video (via phone) of the issue & provide a link to it if possible.

Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures.

At a minimum, we need:

1. The specific steps or actions you took that caused you to encounter the problem.
2. The behavior you expected.
3. The behavior you actually encountered (in as much detail as possible).

Thank you!

[Daniel van Vugt (vanvugt)]

This could be one of a number of different issues...

Please:

1. Attach a video or photo of the problem.

2. Next time the problem starts happening open a Terminal window and run:

   journalctl -b0 > journal.txt

   and then attach the resulting text file here.

[Surya Siddharthan (surya-441)]

Sorry for not adding sufficient information.
However the issue is fixed now.
I uninstalled and reinstalled my dgpu drivers and now everything is fine.
If you need more information please let me know. Please know that I cannot
record a video now as I don't have the issue anymore.

On Thu, Nov 5, 2020 at 10:45 AM Daniel van Vugt <email address hidden>
wrote:

> This could be one of a number of different issues...
>
> Please:
>
> 1. Attach a video or photo of the problem.
>
> 2. Next time the problem starts happening open a Terminal window and
> run:
>
> journalctl -b0 > journal.txt
>
> and then attach the resulting text file here.
>
> ** Changed in: xorg-server (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1902983
>
> Title:
> The display is constantly flickering
>
> Status in xorg-server package in Ubuntu:
> Incomplete
>
> Bug description:
> The display is running on intel graphics and it is constantly
> flickering when rendering gnome related programs
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: xorg 1:7.7+19ubuntu14
> ProcVersionSignature: Ubuntu
> 5.8.0-7625.26~1603389471~20.04~f6b125f~dev-generic 5.8.14
> Uname: Linux 5.8.0-7625-generic x86_64
> NonfreeKernelModules: nvidia_modeset nvidia
> .proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory:
> '/proc/driver/nvidia/capabilities/gpu0'
> .proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory:
> '/proc/driver/nvidia/capabilities/mig'
> .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 455.28 Wed Sep 30
> 01:05:16 UTC 2020
> GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
> ApportVersion: 2.20.11-0ubuntu27.10
> Architecture: amd64
> BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
> CasperMD5CheckResult: skip
> CompizPlugins: No value set for
> `/apps/compiz-1/general/screen0/options/active_plugins'
> CompositorRunning: None
> CurrentDesktop: ubuntu:GNOME
> CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg:
> read kernel buffer failed: Operation not permitted
> Date: Thu Nov 5 09:45:30 2020
> DistUpgraded: 2020-08-06 15:02:44,138 DEBUG inhibit gnome-session idle
> DistroCodename: focal
> DistroVariant: ubuntu
> DkmsStatus: nvidia, 455.28, 5.8.0-7625-generic, x86_64: installed
> ExtraDebuggingInterest: Yes, including running git bisection searches
> GraphicsCard:
> Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00
> [VGA controller])
> Subsystem: Dell UHD Graphics 630 (Mobile) [1028:087c]
> Subsystem: Dell GP107M [GeForce GTX 1050 Ti Mobile] [1028:087c]
> InstallationDate: Installed on 2020-07-23 (104 days ago)
> InstallationMedia: Ubuntu 18.04.3 LTS "Bioni...