This sounds most likely related to temporal dithering (FRC) on the LCD
screen.
Are you able to provide a video of the problem?
** Package changed: xorg (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1825709
Title:
flickering graphic
Status in Ubuntu:
Incomplete
Bug description:
a noticed graphics instability particularly with applications that
have multi-range colorful graphics such as browsers and multimedia
player. it has been the same experience for both Nvidia-driver-390,
Nvidia-driver-340 and also nouveau-Xorg drivers. and the laptop even
stucks at booting with Linux kernel 4.15.0-47-generic with no success
to access tty1-6 terminal, as a result, I have to fall back to the
previous kernel version to boot.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18
Uname: Linux 4.15.0-46-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: Budgie:GNOME
Date: Sun Apr 21 12:48:19 2019
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
nvidia, 390.116, 4.15.0-47-generic, x86_64: installed
virtualbox, 5.2.18, 4.15.0-47-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16]
(rev 0b) (prog-if 00 [VGA controller])
Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:0616]
Subsystem: Dell GK208M [GeForce GT 740M] [1028:0616]
MachineType: Dell Inc. Vostro 5470
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic
root=UUID=d1c171de-98b2-4301-b202-ae2b61443594 ro nomodeset
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/05/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA12:bd11/05/2015:svnDellInc.:pnVostro5470:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1:
dmi.product.family: Shark Bay ULT
dmi.product.name: Vostro 5470
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.95-1~18.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.8-0ubuntu0~18.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.8-0ubuntu0~18.04.2
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
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
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