On Wed, Nov 03, 2021 at 01:25:44PM +0100, Jonas Dreßler wrote: > The issue only appeared for some community members using Surface devices, > happening on the Surface Book 2 of one person, but not on the Surface Book > 2 of another person. When investigating we were poking around in the dark > for a long time and almost gave up until we found that those two devices > had different hardware revisions of the same wifi card installed (ChipRev > 20 vs 21). > > So it seems pretty clear that with revision 21 they fixed some hardware > bug that causes those spurious wakeups. Seems reasonable, thanks for the thorough handling! > FWIW, obviously a proper workaround for this would have to be implemented > in the firmware. Yeah, but you only get those if you're a paying customer apparently :( I wonder if the original OEM got firmware fixes, but because they don't use Linux, nobody bothered to roll those into the linux-firmware repo. Brian
