Flickering when opening windows in KDE

When opening not maximized windows the rest of the screen starts to flicker black in KDE


I’ve tried recomendations to Change the compositor to OpenGl 3 and to change the vsync. Also I’ve tried changing the kernel to 4.17 but no progress. Please help.

Flickering cannot be seen in an image, I suppose…
Do you mean the green blur around the window?

Some system info might help.

inxi -SMGxxxz
neofetch --off

Hahaha yes, I know. It’s the black sections in the screenshot.

System:    Host: black-nerd Kernel: 4.17.4-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.1.1 
           Desktop: KDE Plasma 5.13.2 tk: Qt 5.11.1 wm: KWin dm: sddm Distro: Manjaro Linux 17.1.11 Hakoila 
Machine:   Type: Laptop System: Dell product: Inspiron 15-3567 v: N/A serial: <filter> Chassis: type: 9 
           serial: <filter> 
           Mobo: Dell model: 0101J9 v: A00 serial: <filter> UEFI [Legacy]: Dell v: 01.07.00 date: 04/07/2017 
Graphics:  Card-1: Intel HD Graphics 620 driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:5916 
           Display: x11 server: X.Org 1.19.6 driver: intel unloaded: fbdev,modesetting,vesa 
           resolution: 1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 620 (Kaby Lake GT2) v: 4.5 Mesa 18.1.3 compat-v: 3.0 
           direct render: Yes 

Please study this tutorial for better using the forum

and repair your posted text output, please.

The second command?

OS: Manjaro Linux x86_64 
Host: Inspiron 15-3567 
Kernel: 4.17.4-1-MANJARO 
Uptime: 1 hour, 45 mins 
Packages: 1491 (pacman) 
Shell: bash 4.4.23 
Resolution: 1366x768 
WM: KWin 
WM Theme: oxygen 
Theme: Breeze Dark [KDE], Adwaita [GTK2], Breath [GTK3] 
Icons: breeze-dark [KDE], Adwaita [GTK2], maia [GTK3] 
Terminal: yakuake 
CPU: Intel i3-7100U (4) @ 2.400GHz 
GPU: Intel HD Graphics 620 
Memory: 1774MiB / 7765MiB

Try with another KWin theme, to see if it still has problem.
Any customization to your gpu modules at Xorg and/or modules-load?

cat /etc/X11/xog.conf.d/*.conf
cat /etc/modules-load.d/*.conf | grep intel
cat /etc/modprobe.d/*.conf | grep intel

No diference.

# Read and parsed by systemd-localed. It's probably wise not to edit this file
# manually too freely.
Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbLayout" "us"
        Option "XkbModel" "pc105"
        Option "XkbVariant" "altgr-intl"

Nothing came back.

Thanks for your help btw.

For now I just reinstalled xg86-video-intel. I think it’s working, but usually it starts flickering after some time, so i’ll wait and let you know.

When I do a re-install I have the same. I always found that once things are installed, I do a reboot and the flickering stops by itself.

here a video of flickering only problem is when simple screen recorder is recording it just go black , doesn’t flicker…

can this be fixed does anyone know?

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