On Tue, 27 Apr 2010 07:47:03 -0500 jeff@xxxxxxxxxxxx (Jeff Garrett) wrote: > My board identifies it as a Dell. No idea if they rebranded a > gigabyte. > > The patch seems to work for me as well, powertop shows 97.5% c3, > turbostat shows 93.6% c6 now. I do get weird latency spikes (on I/O) > from time to time. > > When I was investigating, I completely configured USB off, and it > still wouldn't go into deep sleep. Not sure how well that meshes > with your UHCI theory. Does your board expose UHCI controllers or just EHCI with the rate matching hubs? When you say 'configured USB off'?, do you mean off in the BIOS or just no drivers? --phil -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html