Re: WOL stops working on halt

Tim Hockin (thockin@hockin.org)
Thu, 8 Nov 2001 09:44:57 -0800 (PST)


> As far as the driver is concerned, a shutdown and a reboot are identical,
> so we need to look at external causes. Presumably Linux APM or BIOS.

With our boards I had to track the issue that the chipset only delivered
wake events in certain sleep modes. It could be that linux shutdown puts
the system in a sleep mode that does not accept wake-events, but the
power-button override puts it in a wake-able sleep. (S5 vs S3/4 ?). Our
solution is to enable wake events in S3/4/5 on the chipset.

It could be not a net driver issue but an ACPI issue.

Tim
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