Description: Since updating to Plasma 6.1, I have noticed lower framerate performance when playing Minecraft in fullscreen mode. Upon exiting fullscreen, the framerate increases significantly. Despite waiting for the Plasma 6.2 update, the issue persists, so I am filing this bug report. Fullscreen: https://ibb.co/BTHw9xy Windowed: https://ibb.co/27jR4hz Steps to Reproduce: 1. Launch Minecraft in fullscreen mode. 2. Observe the average framerate while playing in fullscreen. 3. Exit fullscreen mode. 4. Compare the average framerate between fullscreen and windowed modes. Observed Result: The framerate in fullscreen mode is lower than expected. When exiting fullscreen, the framerate increases significantly, even though fullscreen should theoretically provide better performance due to direct scanout. Expected Result: Framerate should be higher or at least comparable when playing in fullscreen mode, as it should benefit from direct scanout and improved GPU resource allocation. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.2.0 KDE Frameworks Version: 6.6.0 Qt Version: 6.7.3 Kernel Version: 6.11.2-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 16 × 11th Gen Intel® Core™ i7-11800H @ 2.30GHz Memory: 62.6 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 3060 Laptop GPU/PCIe/SSE2 Manufacturer: Micro-Star International Co., Ltd. Product Name: Katana GF76 11UE System Version: REV:1.0
Forgot to mention: I am using nvidia-dkms 560.35.03-5
IIRC Nvidia only allocated a low amount of buffers on Wayland, and more buffers are required for full performance in fullscreen. They fixed that in more recent driver versions though. If you can still reproduce this in Plasma 6.5 with the latest Nvidia drivers, just reopen this