the not repainting only happens sometimes with gtk 3 (easiest to reproduce by switching tabs)
every rgb-server color change happened immediately after I send udp packet from other computer
source code of rgb-server in video: rgb-server.c.gz (compile using clang)
you don’t have to use rgb-server, anything that causes repaint works (like xclock)
in picom bug report I also show toggling between 2 frames (run without --no-use-damage) but I don’t show it here because it’s not the first wrong thing that happens
I encountered this with picom after upgrading nvidia driver 590.48.01. This is a small demonstration using only several xclock -update 1s. All xclocks move in sync, but after picom is launched, xclock windows on the right will flicker somehow between two frames. When using picom –no-use-damage, the flickering issue will be gone, however you will notice the frame repainting delays - some clocks are not in sync anymore.
Seeing the same flickering behavior as of today on Arch with 590.48.0.1; earlier (starting sometime around the 18th?) those damaged sections just weren’t being repainted whatsoever, until I forced a redraw by e.g. resizing the window.
$ yay -Qs nvidia
local/cuda 13.1.0-1
NVIDIA's GPU programming toolkit
local/egl-gbm 1.1.2.1-1
The GBM EGL external platform library
local/egl-wayland 4:1.1.21-1
EGLStream-based Wayland external platform
local/egl-wayland2 1.0.0.rc.r51.gada1c37-1
EGLStream-based Wayland external platform (2)
local/egl-x11 1.0.4-1
NVIDIA XLib and XCB EGL Platform Library
local/lib32-libvdpau 1.5-3
Nvidia VDPAU library
local/lib32-nvidia-utils 590.48.01-1
NVIDIA drivers utilities (32-bit)
local/libvdpau 1.5-3
Nvidia VDPAU library
local/libxnvctrl 590.48.01-1
NVIDIA NV-CONTROL X extension
local/linux-firmware-nvidia 20251125-2
Firmware files for Linux - Firmware for NVIDIA GPUs and SoCs
local/nvidia-open 590.48.01-3
NVIDIA open kernel modules
local/nvidia-settings 590.48.01-1
Tool for configuring the NVIDIA graphics driver
local/nvidia-utils 590.48.01-1
NVIDIA drivers utilities
local/opencl-nvidia 590.48.01-1
OpenCL implemention for NVIDIA
$ nvidia-smi
Sat Dec 27 14:23:17 2025
±----------------------------------------------------------------------------------------+
| NVIDIA-SMI 590.48.01 Driver Version: 590.48.01 CUDA Version: 13.1 |
±----------------------------------------±-----------------------±---------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA GeForce GTX 1660 … Off | 00000000:03:00.0 On | N/A |
| 25% 43C P5 26W / 125W | 932MiB / 6144MiB | 24% Default |
| | | N/A |
±----------------------------------------±-----------------------±---------------------+
±----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 1375 G /usr/lib/Xorg 297MiB |
| 0 N/A N/A 1567 G picom 40MiB |
| 0 N/A N/A 1816 G /usr/lib/firefox/firefox 326MiB |
| 0 N/A N/A 2040 G /opt/discord/Discord 39MiB |
| 0 N/A N/A 4660 G …share/Steam/ubuntu12_32/steam 2MiB |
| 0 N/A N/A 4854 G ./steamwebhelper 16MiB |
| 0 N/A N/A 4888 G …am/ubuntu12_64/steamwebhelper 149MiB |
| 0 N/A N/A 247315 G alacritty 8MiB |
±----------------------------------------------------------------------------------------+
Thank you for reporting the issue and providing the details. Confirmed this is an issue on drivers 580.119.02 and above. We can reproduce the failures with picom (glx backend). This is being tracked internally on bug 5758240 and is under active investigation.