Active window borders flickering

[arbitrary-dev]

Platform

Gentoo amd64

GPU, drivers, and screen setup

$ equery l mesa
 * Searching for mesa ...
[IP-] [  ] media-libs/mesa-20.1.4:0

$ glxinfo -B 
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) UHD Graphics 630 (CFL GT2) (0x3e9b)
    Version: 20.1.4
    Accelerated: yes
    Video memory: 3058MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.6
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) UHD Graphics 630 (CFL GT2)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.1.4
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 20.1.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.1.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Environment

$ equery l awesome
 * Searching for awesome ...
[IP-] [  ] x11-wm/awesome-4.2-r3:0

picom version

Version: v8

Extensions:

• Shape: Yes
• XRandR: Yes
• Present: Present

Misc:

• Use Overlay: No (Another compositor is already running)
• Config file used: /home/man/.config/picom.conf

Drivers (inaccurate):

modesetting

Configuration:

backend = "glx";
vsync = true;
xrender-sync-fence = true;

Expected behavior

No border flickering

Current Behavior

Sometimes active client borders start to flicker.

[absolutelynothelix]

try setting use-damage to false in your configuration file. i suspect this is the same issue as #401.

[arbitrary-dev]

Duplicates #401