Phoronix reported on November 9, 2026, that Tomasz Bojanowski had posted initial Linux-kernel patches for MSI Mystic Light on MSI Ryzen motherboards with AMD 800-series chipsets. The patches’ reported first goal is to expose three voltage readings monitored by the Mystic Light microcontroller, rather than control RGB lighting. Phoronix’s report describes development work, not a finished driver.
The initial work focuses on voltage readings
The three rails named in the report are CPU 1P8, CHIP Core, and VDD MISC. Phoronix says the Mystic Light microcontroller monitors them, while the Super I/O chip does not monitor those rails on the tested motherboards.
For now, read this as voltage-sensor work: RGB control is a possible later step, not the reported initial focus.
RGB control is a possible later direction
Phoronix described RGB lighting support as a possible focus for a later patch iteration. Its account of the initial work centers on voltage sensing, so it does not describe working Linux RGB control as part of that effort.
A separate AUR listing describes msi-rgb as a utility for controlling RGB LEDs on MSI motherboards. The listing gives version 0.1.0-1 and records April 2, 2018, as its last update. The AUR entry is for that separate utility, not Bojanowski’s kernel patches.
