u/das1996

Z890/270K Plus sleep issues

MSI z890 mag tomahawk wifi board
270K plus cpu
4x crucial CP2K16G64C32U5B 16gb ddr5 6400 MT/s

Installed to sata ssd

Sleep function appears to just blank monitor. Kill-a-watt meter shows idle power drop from ~30W to 15W, fans continue spinning.

Same test using ubuntu 26.04 and KDE neon (kernel 6.17.x) drops power to 0-2w (s3), fans stop, etc. Proper s3 sleep.

Suggestions on how to proceed to get tux to sleep properly?

reddit.com
u/das1996 — 1 day ago