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?
****Forgot to add that this laptop (1810tz) runs Windows 8. On Mon, Mar 23, 2015 at 9:01 AM, Frank Zafka <kafkaesque1...@gmail.com> wrote: > 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
