My guess is it’s the automatic screen brightness. If you’re using GNOME you can disable it here:
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Screen Brightness Automatically Changing | 14 | 11193 | November 21, 2024 | |
| Screen brightness always fluctuates | 3 | 672 | September 17, 2025 | |
| Ubuntu 21.04 Screen flashing | 6 | 3506 | April 20, 2023 | |
| Fedora35 Screen blinks to darker light then back frequently | 3 | 1715 | April 20, 2022 | |
| Disabling auto brightness on AMD | 4 | 1187 | May 26, 2025 |
