I believe that on (some?) Intel 11th gen chips, S3 sleep states are disabled, and only S1 works?
S3 = traditional "suspend to ram"
S1 = new fangled "kind of sleep, instant on mode"
At least, thats what I found on a System76 Lemur Pro, which has the same cpu as the XPS13 (and System76 had to restore the IME, whereas before they used to disable it, just to get some semblence of sleep working)
Solution: get an AMD 4800 - powered laptop instead. Same price, double the cores (8 vs 4), much (much) faster and yet runs cooler.
S3 = traditional "suspend to ram"
S1 = new fangled "kind of sleep, instant on mode"
At least, thats what I found on a System76 Lemur Pro, which has the same cpu as the XPS13 (and System76 had to restore the IME, whereas before they used to disable it, just to get some semblence of sleep working)
Solution: get an AMD 4800 - powered laptop instead. Same price, double the cores (8 vs 4), much (much) faster and yet runs cooler.
And S3 sleep works!