Continuing the discussion from [release notes] Kvarken 4.1.0:
As reported (and confirmed by other) my X suffers from a heavy power drain.
I tested a lot and it is absolutely only happening when WLAN is connected.
It is a more or less plain vanilla device (storeman, sfos-upgrade, harbour-defender) for testing.
Upgraded from 3.3 up to 4.1.
One mail account, set to sync manual.
Tested with all radio on, only network, network and cell data, WLAN enabled (but not connected) and other combinations. But it boils down to WLAN connected.
Top does not reveal anything.
Any more info I can give?