@dangillmor @mcc I'm running Linux on a Lenovo Carbon X1 and maybe one time out of five if I sleep it when not connected to external power/monitor, it won't wake up and I have to power-cycle. I've been assuming it's a Lenovo problem; I've been happily using desktop/laptop Linux for a quarter century (though not with gnome or wayland) and all the non-Lenovo machines could wake up reliably.
@akkana @dangillmor There was a regression in the 6.8.x kernel series somewhere around April and that's what's causing me problems now.