KDE Plasma Wayland Protocols 1.16 Brings Power/Performance vs. Color Accuracy Preference

Written by Michael Larabel in KDE on 9 January 2025 at 08:40 AM EST. 23 Comments
KDE
KDE developers today released Plasma Wayland Protocols 1.16 as the newest feature update to this set of non-standard Wayland protocols used by the Plasma desktop.

New to Plasma Wayland Protocols 1.16 are the following few changes:
- external-brightness: Allow the client to specify observed brightness
- output management: add a failure reason event
- output device,-management: add a dimming multiplier
- output device/management: add power/performance vs. color accuracy preference

Allowing the client to specify the observed brightness can be useful with the kde_external_brightness_v1 v2 protocol while arguably the most interesting is the output device/management addition of adding a power/performance versus color accuracy preference. This ties into the work by Linux graphics driver developers for power saving policies whether to focus on power/performance over optimal color accuracy or alternatively artists and others demanding the utmost color accuracy can engage the preference at the cost of possible power-savings/performance.
"The compositor can do a lot of things that trade between performance, power and color accuracy. This setting describes a high level preference from the user about in which direction that tradeoff should be made."

This preference is added to the kde_output_device_v2 protocol with the "color_power_tradeoff" allowing values of either efficiency or accuracy.

KDE Plasma 6 desktop


More details on the Plasma Wayland Protocols 1.16 release via KDE.org.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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