Hi, I'm not sure if this is related to thinkpad_acpi or not, but maybe someone here can judge this. We are trying to turn e.g. the power led into a hard disk activity indicator by echo disk-activity > /sys/devices/platform/thinkpad_acpi/leds/tpacpi::power/trigger This works fine on all our older thinkpad models with SATA hard disks works also on our PCs with SSD disks (SATA as well as NVME), but it fails on our newer thinkpads, i.e. T570 and T580 with NVME SSDs. The LED just stays off all the time no matter what we do with the hard disk. Could this be some information missing in thge thinkpad_acpi module for those new models? Or is this some general code somewhere else in the kernel? If it could be related to thinkpad_acpi what kind of information could I send to help someone write a patch? cu, Frank -- Dipl.-Inform. Frank Steiner Web: http://www.bio.ifi.lmu.de/~steiner/ Lehrstuhl f. Bioinformatik Mail: http://www.bio.ifi.lmu.de/~steiner/m/ LMU, Amalienstr. 17 Phone: +49 89 2180-4049 80333 Muenchen, Germany Fax: +49 89 2180-99-4049 * Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. * _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel