Panels, Plasma restore, and Nautilus defaults

Kernel graphics proposals led the day, headed by atomic state for DRM panels and several GPU driver series, while desktop users disputed incomplete session restore in Plasma 6.8 and a Nautilus window-opening change.

DRM panels gain opt-in atomic state

A 35-patch series on dri-devel proposes letting DRM panels use the atomic state by routing through an embedded drm_bridge. The change is opt-in for drivers. Panel code that needs atomic state would be able to take that path instead of staying on the older panel interface.

Plasma 6.8 session restore still incomplete

Users on KDE Discuss report broken session restore after the Plasma 6.8 Wayland switch. Developers confirm the feature is not yet complete. Anyone who depended on restored sessions after logout or reboot is still waiting on that work.

Nautilus 51 drops the new-window default

GNOME users say Nautilus 51 removed the previous behavior of opening a new window every time, with no toggle, and that this breaks workspace and multi-monitor use. A patch has been offered and GitLab issue 4370 has been filed.

RFC proposes a DRM driver for PowerVR SGX5xx

A 13-patch RFC proposes powervr_sgx, a render-only DRM driver for PowerVR SGX5xx GPUs on gma500 and OMAP hardware, and asks for design review. A related RFC weighs SGX535 render ownership, MMU handling, and failure paths in drm/gma500 against sharing that driver for Poulsbo, Oaktrail, and Cedarview.

PCI peer DMA would key off TLP class

A v13 series of 19 patches refines PCI peer-to-peer DMA so ACS controls are evaluated per TLP class, including asymmetric fabrics. The series is under discussion on dri-devel, where GPU DMA paths meet the PCI changes.

VRR target rate limiter proposed as KMS uAPI

A v2 series of 27 patches on the Wayland development list proposes a DRM/KMS userspace API and helpers for a VRR target rate limiter, along with QMS and HDMI VTEM support. The implementation side of the series targets Rockchip.

Panfrost would resume long jobs instead of resetting

A v3 series of 14 patches changes the Panfrost driver so a long job is resumed after a timeout instead of resetting the GPU. The same series fixes mapping error paths and a reset race.