On Tue 2010-01-26 02:47:40, Jeff Garrett wrote: > Hi, > > I was trying to chase down a theory that my desktop machine (a core i7) > is running warm (the fan sounds like it's at full speed all the time, > and I think it's not always acted this way -- hence the theory). > > powertop is never showing it spending any time in C3... > > I compiled a kernel without USB/sound/radeon, and ran without X. I was > able to get the wakeups/sec down below 20, but no time is spent in C3. > This may be a complete red herring, but I added some printk logic to > acpi_idle_bm_check(), and it is getting called often, but bm_status is > always 1. [I infer from this that the idle logic is trying to go into > C3, but this check is stopping it... Unless I misread something.] > > Is this expected behavior or is this a legitimate problem? > > How might I investigate this further? DMA keeps system awake? Possibly USB? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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
