> It does not power on. This laptop is very quiet when running OpenBSD, > most of the time I don't know if fan rotates or not, but I guess it > does not start after pressing power button in suspended state. No > backlight either. Power button on T440 has green led light, and after > going into suspended state led has slow on/off pattern. It doesn't > change by pressing the button. All I can do is holding it for more than > 4 seconds to turn it off.
... > I can ZZZ, it appears to work properly. Smeels like the Lenovo TPM issue. Disable it in the BIOS (and truly disable it, there is a half-way in bewteen setting as well). After that suspend/resume should work.