this post was submitted on 03 Feb 2026
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Linux Prepares To Support Microsoft's "Turn On Display" DSM To Address Laptop Issues (www.phoronix.com)
submitted 1 month ago by cm0002@digipres.cafe to c/linux@programming.dev
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Microsoft in Windows 11 22H2 introduced a new ACPI Device Specific Method (DSM) "Turn On Display" notification that the Linux 7.0 kernel will be adding support for in dealing with some otherwise problematic laptop behavior.

Queued up into the Linux power management subsystem's "linux-next" Git branch ahead of the upcoming Linux 6.20~7.0 kernel cycle is support in the s2idle driver for invoking the Microsoft Turn On Display DSM. Microsoft's documentation describes the Turn On Display / Function 9 notification as being used to signal during resume time from modern standby when the intent is to turn on the system's display.

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[–] FishFace@piefed.social 12 points 1 month ago

All this effort when S3 did everything