AMD Radeon Linux Graphics Driver Prepares PSR2 / PSR-SU MPO Capability

phoronix

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AMD Radeon Linux Graphics Driver Prepares PSR2 / PSR-SU MPO Capability

07 May 2022, 04:00 AM

Phoronix: AMD Radeon Linux Graphics Driver Prepares PSR2 / PSR-SU MPO Capability

For better power-savings with new/forthcoming AMD powered laptops, this week AMD engineers sent out a patch series for PSR2 / PSR-SU MPO functionality for reducing display power consumption...

AMD Radeon Linux Graphics Driver Prepares PSR2 / PSR-SU MPO Capability - Phoronix

https://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-PSR-SU-MPO

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Namelesswonder

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Join Date: Sep 2021

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08 May 2022, 01:35 AM

Originally posted by atomsymbol

Nice feature. But according to https://encomhat.com/2021/09/linux-laptop-battery/ it saves only about 0.5 Watts [on an Intel iGPU].

That's still pretty good for when it comes to ultra low power devices running under 10 watts.
The Steam Deck uses 4 watts at idle. I don't know if the display supports PSR2, but if it does then cutting 0.5W or more off is a decent uplift in battery life. If not then it would improve idle drain for any newer portables using APUs down the line.
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