http://bugzilla.kernel.org/show_bug.cgi?id=13210
--- Comment #6 from Maxim Levitsky <[email protected]> 2009-04-30 16:19:03 --- No need to apply http://bugzilla.kernel.org/show_bug.cgi?id=13121#C18 I am the same Maxim that reported that issue, so I use that patch. /sys/firmware/acpi/interrupts/ shows same picture, only GPE #2 and #1C increase. #2 is thremal event which is signaled from SMI, as according to ICH8 datesheet, this is user generated event, by writting to a register. #1C is the EC interrupt, and it ether steadily increases qute fast (when the 'ec interrupt storm is detected', or otherwise increases rarely. Brightness events are reported via #1C, using this ugly AML code: Method (_Q11, 0, NotSerialized) { /* this I think checks for vista */ If (LGreaterEqual (OSYS, 0x07D6)) { /* this checks if onboard graphics are enabled*/ /* OBV is first pci confif register on device#0 function #1*/ If (LEqual (OBV, 0xFF)) { Notify (\_SB.PCI0.PEGP.VGA.LCD, 0x87) } Else { Notify (\_SB.PCI0.OVGA.DD03, 0x87) } } Else { /* this seems to be vendor specific reading of brightness */ If (LEqual (\_SB.PCI0.WMID.BAEF, One)) { /* this reads current brightness*/ Store (BRTS, Local1) Store (\_SB.PCI0.WMID.LBL0, Local2) Add (Local2, Local1, Local2) /* NTDC I think is software variable*/ Store (Local2, \_SB.PCI0.WMID.NTDC) Notify (WMID, 0x80) } } } Notice the check for windows vista? (not sure, but I think so) -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
