Comment 157 for bug 1283589

For what it's worth, Windows seems to use the "stop EC from generating events" approach rather than "clear events on wake". So it must be possible.

However, it seems prudent to do BOTH, as there are situations where just doing one still leads to problems.

That is, if we only clear events on wake and don't stop them on sleep, then the event buffer will still fill and potentially interfere with other operating systems (e.g. if something wrong happens during suspend/resume or the battery goes flat and next boot goes into Windows with a full event buffer, Windows doesn't clear the events and has most of the same problems described here).

Alternatively, if we only stop the EC from generating events during sleep, we won't clear the buffer if it has been filled by another operating system or by other yet unforeseen triggers (for example, if the kernel is locked up or indisposed the buffer could fill in the EC without ever going into sleep).

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For the same reason, any function to clear the events on wake should also run on normal system boot.

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I think the ideal solution would be to stop the EC from generating events during sleep in addition to clearing the events on wake and on boot (in case the buffer is full from a previous operating system or kernel).