For the Qualcomm Adreno X1-85 GPU found within the Snapdragon X1 series of laptop chips, an Adaptive Clock Distribution “ACD” feature is currently being wired up to the open-source MSM kernel driver to help with power and performance.
There continues to be ongoing work in 2025 for bettering the Linux driver support for the Snapdragon X1 series laptops that debuted last year. For helping with power efficiency and GPU performance, Qualcomm engineers have been working on support for the Adaptive Clock Distributon (ACD) feature for the Adreno X1-85 graphics processor.
ACD helps in lowering power consumption on the GX rail and is also needed for enabling higher GPU frequencies in some environments. This initial Adreno X1-85 focus is on having the ACD feature work well for the Snapdragon X1 Elite model SoC.
“ACD a.k.a Adaptive Clock Distribution is a feature which helps to reduce the power consumption. In some chipsets, it is also a requirement to support higher GPU frequencies. This patch adds support for GPU ACD by sending necessary data to GMU and AOSS. The feature support for the chipset is detected based on devicetree data.”
Those with a Snapdragon X1 Elite laptop or just curious about this Adreno ACD feature can see this patch series for latest enablement work on this power/performance feature.
