Screen scintillation with Nvidia GPU and nouveau

[Yann Salmon]

When using my Quadro K620 with the nouveau driver, the screen scintillates. This is more perceptible on the SDDM login screen and when viewing the desktop background. This does not happen when driving the GPU with the closed NVIDIA driver.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-video-nouveau 1:1.0.15-2
Uname: Linux 4.17.0-996-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: KDE
Date: Fri Aug 3 09:22:34 2018
DistUpgraded: 2018-07-01 17:39:22,208 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py'
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 5.2.10, 4.15.0-24-generic, x86_64: installed
 virtualbox, 5.2.10, 4.15.0-29-generic, x86_64: installed
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
 Subsystem: Dell HD Graphics P530 [1028:06b7]
 NVIDIA Corporation GM107GL [Quadro K620] [10de:13bb] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: NVIDIA Corporation GM107GL [Quadro K620] [10de:1098]
InstallationDate: Installed on 2016-09-07 (694 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. Precision Tower 3620
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.17.0-996-generic root=UUID=cfbd19c8-1ab6-4c40-9d40-26479783657f ro video=DP-1:3840x2160 resume=PARTUUID=06a1b832-1aa6-48fe-8118-65f8c27f1091
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: Upgraded to bionic on 2018-07-01 (32 days ago)
dmi.bios.date: 06/11/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.10.2
dmi.board.name: 09WH54
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.10.2:bd06/11/2018:svnDellInc.:pnPrecisionTower3620:pvr:rvnDellInc.:rn09WH54:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.family: Precision
dmi.product.name: Precision Tower 3620
dmi.sys.vendor: Dell Inc.
drirc:
 <driconf>
 </driconf>
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.92+git20180609.c1f2d9b9-0ubuntu0ricotz~18.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Fri Aug 3 09:20:31 2018
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.6-1ubuntu4
xserver.video_driver: nouveau

[Launchpad Janitor (janitor)]

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