I copied the quirks from D810, changed the product to D820 and now my Dell D820 suspends and resumes correctly. <match key="system.hardware.product" contains="D820"> <merge key="power_management.quirk.vbe_post" type="bool">true</merge> <merge key="power_management.quirk.vbestate_restore" type="bool">true</merge> </match> -- Mads Villadsen <maxx at krakoa.dk>