As per suggestions, I tried modprobe -r ehci_hcd. No difference I'm afraid. I have another laptop with almost identical hardward (acer 1810tz) and I recently installed the very same wifi card. I tested suspend on that last night and it didn't experience any significant battery discharge. If that information helps?
On Sun, Mar 22, 2015 at 2:17 AM, Sujith Manoharan <suj...@msujith.org> wrote: > Adrian Chadd wrote: >> Sujith - do you have access to the PCIe breakout stuff at QCA? >> Something that we can use to measure the current draw of the NIC? > > Nope, no access. > > I asked internally if using a card that has been reworked for WOW > support can be used on a different mainboard - didn't get any > clear answer. > > I found a doc which mentions this to enable WOW for WB222/AR9462: > > For the hardware module: > 1. Power must be provided to the module during the S3/S4 states to support > WoW. > 2. BOM change: (note that a host pull-up resistor (≧5 KΩ) tied to no higher > than > +3.3 Vaux is required on this pin) > > WB222-031: > Load R4 with 0 Ω, +5% 0201 > Load R50 with 10K Ω, +5% 0201 (Optional) > > I have no idea if this is a HW issue or just a bug in ath9k. > This page mentions that unloading ehci_hcd makes a difference: > http://www.thinkwiki.org/wiki/Problem_with_high_power_drain_in_ACPI_sleep#USB > > Maybe that can be tried (or xhci_hcd). > > Sujith _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
