KDE Plasma 6.8 is introducing several improvements focused on performance, efficiency, and stability. Changes to KWin, KPipeWire, and the Trash widget are included in the update, alongside a fix for a common crash.
Plasma 6.8 includes enhancements for full-screen content performance and power efficiency on systems utilizing Intel or NVIDIA GPUs with HDR, ICC profiles, or the night light effect. According to the developers, the update offloads single-plane OETF to the CRTC post-blend gamma LUT, enabling direct scan-out in more scenarios and reducing reliance on shader composition. This change aims to reduce color banding and improve utilization of the DRM/KMS hardware color pipeline.
KPipeWire sees a reduction in screen-casting latency by one frame throughout Plasma and KWin. The Trash widget has been optimized by switching from DIrModel to KCoreDirLister for counting items, reducing overhead, and preventing premature updates to the displayed item count.
The upcoming release is also designed to address the second most frequent crash experienced by Plasma desktop users, which occurred during log-out. The crash was traced to an issue within the QConcatenateTablesProxyModel destruction process. Furthermore, the built-in RDP server will now automatically adjust its quality level based on available network bandwidth. Plasma 6.7.5 also improves the appearance of HDR content when used with an ICC display profile.
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