Background image gets corrupted after login

[Amirali Sadeghi]

Problem: Small squares with random pixel colors appear on desktop background image.

Additional info (forgive me if some of these are included in the bug details that was automatically uploaded):
1- My laptop has two graphic cards: Intel and NVIDIA and it's using Intel as the default card (It's written in the About page of the Settings)
2- I also have Windows on my laptop and it doesn't happen there.
3- Changing the background solves the issue but only until the next restart. Also, changing it back to the image that was corrupted returns the corrupted pixels exactly the way they were. They somehow get attached to that specific image.
4- I'm using Ubuntu 20.04.
5- Sometimes those squares appear in the login screen too.
6- I have attached a screenshot of the desktop (1.jpg in the zip file I've attached)
7- Another observation I've had is that right after I enter my password in the login page, the screen somehow "flashes" once and some lines appear on the screen (2.jpg in the zip file)

What I've tried:
1- I tried changing the NVIDIA driver from xorg to NVIDIA's own driver (version 440) but no luck.
2- Tried "dconf reset -f /org/gnome/" and it didn't help.

Workarounds I've found:
1- Restarting Gnome using Alt+F2 and entering r will solve the problem but only until the next restart.
2- I changed the DE to Ubuntu on Wayland and the issue is gone. It seems like gnome has some kind of incompatibility with something.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri May 1 14:36:55 2020
DistUpgraded: 2020-05-01 02:56:41,056 DEBUG inhibit gnome-session idle
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation HD Graphics 530 [8086:191b] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company HD Graphics 530 [103c:820d]
   Subsystem: Hewlett-Packard Company GM107M [GeForce GTX 960M] [103c:820d]
InstallationDate: Installed on 2019-07-15 (290 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 8087:0a2a Intel Corp.
 Bus 001 Device 003: ID 04f2:b56d Chicony Electronics Co., Ltd HP Wide Vision HD
 Bus 001 Device 002: ID 046d:c058 Logitech, Inc. M115 Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Pavilion Notebook
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-28-generic root=UUID=9da90290-adcc-4ed3-9f63-fae1bb7364cd ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to focal on 2020-04-30 (0 days ago)
dmi.bios.date: 12/12/2019
dmi.bios.vendor: Insyde
dmi.bios.version: F.53
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 820D
dmi.board.vendor: HP
dmi.board.version: 82.39
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.53:bd12/12/2019:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn820D:rvr82.39:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP S=PAV X=Null
dmi.product.name: HP Pavilion Notebook
dmi.product.sku: X1G64PA#AB4
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
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 20.0.4-2ubuntu1
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 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Druid (druid99999)]

Also getting corruption in the background, the dock and application windows.
Using Intel® HD Graphics 2000 (SNB GT1) that's connected to two monitors (VGA and HDMI) monitor.
18.04 worked fine. Corruption started occurring after an upgrade from 18.04 to 19.10 and has continued after a fresh install of 20.04.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[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 1867668, 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.

[Druid (druid99999)]

Thanks for the update.
To be honest, not sure if my issues were exactly the same as these two
bugs, they are are both for upgrades while mine is for a fresh install.
A lot of the discussion in this bug
https://bugs.launchpad.net/bugs/1867668 seems
to be focused on /etc/X11/xorg.conf.d/20-intel.conf, which doesn't exist on
my system.

Are there any bugs filed for graphic issues with a new install of 20.04?

Note, I've switched to Wayland and have seen a significant improvement.
There are still some issues, but they are much less frequent.

Regards,

On Sun, 3 May 2020 at 22:00, Daniel van Vugt <email address hidden>
wrote:

> *** This bug is a duplicate of bug 1867668 ***
> https://bugs.launchpad.net/bugs/1867668
>
> 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 1867668, 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.
>
>
> ** This bug has been marked a duplicate of bug 1867668
> Visual artifacts in Gnome Shell when using the 'intel' Xorg driver
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1876277
>
> Title:
> Background image gets corrupted after login
>
> Status in gnome-2048 package in Ubuntu:
> Confirmed
>
> Bug description:
> Problem: Small squares with random pixel colors appear on desktop
> background image.
>
> Additional info (forgive me if some of these are included in the bug
> details that was automatically uploaded):
> 1- My laptop has two graphic cards: Intel and NVIDIA and it's using
> Intel as the default card (It's written in the About page of the Settings)
> 2- I also have Windows on my laptop and it doesn't happen there.
> 3- Changing the background solves the issue but only until the next
> restart. Also, changing it back to the image that was corrupted returns the
> corrupted pixels exactly the way they were. They somehow get attached to
> that specific image.
> 4- I'm using Ubuntu 20.04.
> 5- Sometimes those squares appear in the login screen too.
> 6- I have attached a screenshot of the desktop (1.jpg in the zip file
> I've attached)
> 7- Another observation I've had is that right after I enter my password
> in the login page, the screen somehow "flashes" once and some lines appear
> on the screen (2.jpg in the zip file)
>
> What I've tried:
> 1- I tried changing the NVIDIA driver from xorg to NVIDIA's own driver
> (version 440) but no luck.
> 2- Tried "dconf reset -f /org/gnome/" and it didn't help.
>
> Workarounds I've found:
> 1- Restarting Gnome using Alt+F2 and entering r will solve the problem
> but only until the next restart.
> 2- I changed the DE to Ubuntu on Wayland and the issue is gone. It seems
> like gnome has some kind of incompatibility with something.
>
> ProblemType: Bug...

[Daniel van Vugt (vanvugt)]

Druid,

Please report your own bug by running:

  ubuntu-bug gnome-shell

so that we can investigate your particular system.