@cwebber There's one person who has (IIRC) working hibernate, gordon1 in the IRC channel. if i were to debug suspend, i'd make a custom boot disk with extlinux.conf enabling some kernel parameters like no_console_suspend, and make a custom dtb file with as many hardware features as possible turned off but that i'd still be able to boot to a console where i can try the suspend/resume. i think it should work with bare rk3588 + serial console, for example. then enable hw features one by one