On Mon, 09 May 2011, Andrew Lutomirski wrote: > I read some more of the spec. It looks like the EC sends query 43 > when the mute status changes. > > The problem is that _Q43 just calls _UCMS, which issues an SMI but > does nothing else. So we don't get notified. And unless we change > acpi_ec_sync_query to allow more than one handler for the same query, > we can't even get notified without breaking _Q43. So we're screwed. We can 1) attach to _Q43 directly (must be whitelist-based using a quirk list), OR 2) ask Lenovo for _Q43 to call the HKEY notifier chain, which should still be possible for the 2011 boxes, and with some luck, the 2010 boxes as well. I will only do (2) after we went through some testing with your patch. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
