Hello, I have a laptop with an 8th gen Intel processor and a Phoenix bios. If I enable RTD3 in the BIOS setup i get the following acpi errors at boot: ACPI BIOS Error (bug): Failure looking up [\_SB.PCI0.I2C1.TPL1], AE_NOT_FOUND (20180105/dswload-211) ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20180105/psobject-252) ACPI Error: AE_NOT_FOUND, (SSDT:RVPRRtd3) while loading table (20180105/tbxfload-228) ACPI Error: 1 table load failures, 13 successful (20180105/tbxfload- 246) I've got a sata3 ssd drive (Samsung 850Evo). If I set up AHCI 'auto' power management, meaning that the controller goes to sleep when idle, i get the following every time the controller is shut down: acpi device:65: Cannot transition from (unknown) to D3hot acpi device:65: Failed to change power state to D0 In fact cat /sys/bus/acpi/devices/device:65/power_state (unknown) cat /sys/bus/acpi/devices/device:65/real_power_state D3cold Everything works well otherwise, but I suspect that I am not getting any power saving from RTD3. I don't know much about ACPI, but I can help debugging if this can be fixed kernel side (I am using 4.16.0-rc5). Otherwise I could try and contact the people that make the bios. Please let me know if you need any output/tests. Note that I also have other acpi-related errors that display regardless of RTD3 being enabled: ACPI BIOS Error (bug): Failure looking up [\_SB.PCI0.RP04.PXSX._SB.PCI0.RP05.PXSX], AE_NOT_FOUND (20180105/dswload2-194) ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20180105/psobject-252) ACPI Error: Method parse/execution failed \_SB.PCI0.RP04.PXSX, AE_NOT_FOUND (20180105/psparse-550) ACPI BIOS Error (bug): Failure looking up [\_SB.PCI0.RP08.PXSX._SB.PCI0.RP09.PXSX], AE_NOT_FOUND (20180105/dswload2-194) ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20180105/psobject-252) ACPI Error: Method parse/execution failed \_SB.PCI0.RP08.PXSX, AE_NOT_FOUND (20180105/psparse-550) ACPI Error: Could not find/resolve named package element: \_SB_.PCI0.PAUD (20180105/dspkginit-384) Regards -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
