Advanced Configuration and Power Interface Specification

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Advanced Configuration and Power Interface Specification B.3.1 _DOS (Enable/Disable Output Switching) ............................................... 970 B.3.2 _DOD (Enumerate All Devices Attached to the Display Adapter)........... 971 B.3.3 _ROM (Get ROM Data) .......................................................................... 974 B.3.4 _GPD (Get POST Device) ...................................................................... 974 B.3.5 _SPD (Set POST Device) ....................................................................... 975 B.3.6 _VPO (Video POST Options)................................................................... 976 B.4 Notifications for Display Devices .................................................................................. 976 B.5 Output Device-specific Methods................................................................................... 977 B.5.1 _ADR (Return the Unique ID for this Device) .......................................... 977 B.5.2 _BCL (Query List of Brightness Control Levels Supported)..................... 977 B.5.3 _BCM (Set the Brightness Level)............................................................. 978 B.5.4 _BQC (Brightness Query Current level)................................................... 978 B.5.5 _DDC (Return the EDID for this Device).................................................. 979 B.5.6 _DCS (Return the Status of Output Device) ............................................ 979 B.5.7 _DGS (Query Graphics State) ................................................................. 980 B.5.8 _DSS (Device Set State) ......................................................................... 980 B.6 Notifications Specific to Output Devices....................................................................... 981 B.7 Notes on State Changes .............................................................................................. 982 xxxii April, 2015 Version 6.0
Tables Table 1-1 Hardware Type vs. OS Type Interaction................................................................. 3 Table 2-2 Summary of Global Power States......................................................................... 25 Table 2-3 Summary of Device Power States ........................................................................ 27 Table 3-4 Low Battery Levels ............................................................................................... 49 Table 3-5 Implementable Platform Types ............................................................................. 54 Table 4-6 Feature/Programming Model Summary................................................................ 68 Table 4-7 PM1 Event Registers ............................................................................................ 72 Table 4-8 PM1 Control Registers.......................................................................................... 72 Table 4-9 PM2 Control Register ........................................................................................... 73 Table 4-10 PM Timer Register.............................................................................................. 73 Table 4-11 Processor Control Registers............................................................................... 73 Table 4-12 General-Purpose Event Registers ...................................................................... 73 Table 4-13 Power Button Support......................................................................................... 76 Table 4-14 Sleep Button Support.......................................................................................... 79 Table 4-15 Alarm Field Decodings within the FADT ............................................................. 83 Table 4-16 PM1 Status Registers Fixed Hardware Feature Status Bits ............................... 86 Table 4-17 PM1 Enable Registers Fixed Hardware Feature Enable Bits ............................. 88 Table 4-18 PM1 Control Registers Fixed Hardware Feature Control Bits ............................ 89 Table 4-19 PM Timer Bits ..................................................................................................... 90 Table 4-20 PM2 Control Register Bits ................................................................................. 90 Table 4-21 Processor Control Register Bits.......................................................................... 91 Table 4-22 Processor LVL2 Register Bits............................................................................. 91 Table 4-23 Processor LVL3 Register Bits............................................................................. 92 Table 4-24 Sleep Control Register ....................................................................................... 93 Table 4-25 Sleep Status Register ........................................................................................ 93 Table 5-26 Generic Address Structure (GAS) .................................................................... 107 Table 5-27 Address Space Format ..................................................................................... 108 Table 5-28 Root System Description Pointer Structure ...................................................... 110 Table 5-29 DESCRIPTION_HEADER Fields...................................................................... 110 Table 5-30 DESCRIPTION_HEADER Signatures for tables defined by ACPI ................... 111 Table 5-31 DESCRIPTION_HEADER Signatures for tables reserved by ACPI ................. 112 Table 5-32 Root System Description Table Fields (RSDT) ................................................ 115 Table 5-33 Extended System Description Table Fields (XSDT) ......................................... 115 Table 5-34 Fixed ACPI Description Table (FADT) Format ................................................ 116 Table 5-35 Fixed ACPI Description Table Fixed Feature Flags.......................................... 124 Table 5-36 Fixed ACPI Description Table Boot IA-PC Boot Architecture Flags ................. 129 Table 5-37 Fixed ACPI Description Table ARM Boot Architecture Flags ........................... 129 Table 5-38 Firmware ACPI Control Structure (FACS) ........................................................ 130 Table 5-39 Firmware Control Structure Feature Flags ....................................................... 133 Table 5-40 OSPM Enabled Firmware Control Structure Feature Flags.............................. 133 Table 5-41 Global Lock Structure within the FACS ............................................................ 134 Table 5-42 Differentiated System Description Table Fields (DSDT)................................... 136 Table 5-43 Secondary System Description Table Fields (SSDT) ....................................... 137 Version 6.0 xxxiii
Page 1 and 2: Advanced Configuration and Power In
Page 3 and 4: Revision History Revision Change De
Page 5 and 6: Revision Change Description Affecte
Page 15 and 16: Contents 1 2 Introduction........
Page 17 and 18: 5 ACPI Software Programming Model
Page 19 and 20: 7 6.3.6 _RMV (Remove) ............
Page 21 and 22: 9.2.5 _ALR (Ambient Light Response)
Page 23 and 24: 11.2.1 Evaluating Thermal Device Li
Page 25 and 26: 14.1.3 Generic Communications Subsp
Page 27 and 28: 19.6.10 Buffer (Declare Buffer Obje
Page 29 and 30: 19.6.102 Processor (Declare Process
Page 31: A.4.1 Power State Definitions......
Page 35 and 36: Table 5-91 Power state Values .....
Page 37 and 38: Table 6-184 Device Insertion, Remov
Page 39 and 40: Table 10-275 Control Method Battery
Page 41 and 42: Table 19-367 Field Unit list entire
Page 43 and 44: Figures Figure 1-1 OSPM/ACPI Global
Page 45 and 46: Introduction 1 Introduction The Adv
Page 47 and 48: Introduction wake and answer the te
Page 49 and 50: Introduction Figure 1-1 OSPM/ACPI G
Page 51 and 52: Introduction specified below are ge
Page 53 and 54: Introduction ACPI System Descriptio
Page 55 and 56: Introduction • Support the ACPI E
Page 57 and 58: Introduction 1.9.2 Programming Mode
Page 59 and 60: Introduction 1.10 Related Documents
Page 61 and 62: Definition of Terms 2 Definition of
Page 63 and 64: Definition of Terms of power manage
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Page 73 and 74: Definition of Terms state to allow
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ACPI Overview through their own bus
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ACPI Overview the SCI status bit ma
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ACPI Overview wait for the call. To
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ACPI Overview Each device enumerate
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ACPI Overview the battery is able t
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ACPI Overview Table 3-4 Level Warni
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ACPI Overview necessary. Figure 3-8
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ACPI Overview 3.11.1 Hardware-reduc
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ACPI Overview Low Power S0 Idle Cap
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ACPI Hardware Specification 4 ACPI
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ACPI Hardware Specification would b
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ACPI Hardware Specification OSPM re
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ACPI Hardware Specification SLP_ENx
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ACPI Hardware Specification Device
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ACPI Hardware Specification Generic
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ACPI Hardware Specification Feature
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ACPI Hardware Specification Registe
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ACPI Hardware Specification Table 4
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ACPI Hardware Specification purpose
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ACPI Hardware Specification The pow
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ACPI Hardware Specification 4.8.2.2
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ACPI Hardware Specification Month A
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ACPI Hardware Specification • OSP
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ACPI Hardware Specification Althoug
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ACPI Hardware Specification the SLE
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ACPI Hardware Specification Power B
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ACPI Software Programming Model 5 A
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ACPI Software Programming Model The
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ACPI Software Programming Model •
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ACPI Software Programming Model ACP
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ACPI Software Programming Model OEM
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ACPI Software Programming Model 5.2
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Device Configuration 6 Device Confi
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Device Configuration BUS PCMCIA PC
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Device Configuration Device(SATA) /
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Device Configuration Return Value I
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Device Configuration unable to dete
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Device Configuration Name Definitio
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Device Configuration Name Definitio
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Device Configuration Rota-tion Goup
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Device Configuration Example ASL: N
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Device Configuration Object _FIX _G
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Device Configuration For example, i
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Device Configuration 6.2.5 _DSD (De
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Device Configuration } Name (_DSD,
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Device Configuration APIC Device”
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Device Configuration Scope(\_SB) {
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Device Configuration Method(_EJ0, 1
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Device Configuration Field Object T
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Device Configuration Field Object T
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Device Configuration other governin
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Device Configuration Since platform
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Device Configuration Section 8.4.4.
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Device Configuration Control Field
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Device Configuration Device(PCI0) /
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Device Configuration Field Type Des
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Device Configuration This optional
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Device Configuration Field Byte Len
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Device Configuration If a device in
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Device Configuration are present, w
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Device Configuration Arguments: Non
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Device Configuration Return Value:
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Device Configuration Table 6-187 Op
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Device Configuration User interacts
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Device Configuration Method(_EJ0, 1
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Device Configuration 6.4.2 Small Re
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Device Configuration Offset Field N
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Device Configuration Table 6-197 I/
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Device Configuration 6.4.2.9 End Ta
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Device Configuration Offset Byte 11
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Device Configuration To specify mul
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Device Configuration 6.5 Other Obje
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Device Configuration Note: If the m
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Device Configuration Note: The OS o
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Device Configuration whether the Gl
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Power and Performance Management 7
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Power and Performance Management No
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Power and Performance Management Re
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Power and Performance Management Ob
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Power and Performance Management Ar
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Power and Performance Management If
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Power and Performance Management ca
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Power and Performance Management
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Power and Performance Management im
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Power and Performance Management 9.
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Processor Configuration and Control
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Power Source and Power Meter Device
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Thermal Management 11 Thermal Manag
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Thermal Management When a thermal z
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Thermal Management controller firmw
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Thermal Management 11.1.5 Passive C
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Thermal Management 11.2 Cooling Pre
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Thermal Management Alternatively, d
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Thermal Management 11.3.1.2 _FPS (F
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Thermal Management Package (){ Revi
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Thermal Management 11.4.2 _ALx (Act
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Thermal Management Element Object T
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Thermal Management Return Value: No
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Thermal Management Other Temperatur
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Thermal Management // // NOTE3: Thi
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Thermal Management 11.4.16 _TFP (Th
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Thermal Management 11.4.20 _TSN (Th
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Thermal Management occurs—relievi
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Thermal Management Scope(\_SB) { De
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Thermal Management } // fan cooling
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Thermal Management // For brevity,
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Thermal Management External(\_SB.CP
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Thermal Management Method(_TPT, 1)
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ACPI Embedded Controller Interface
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Platform Communications Channel (PC
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System Address Map Interfaces 15 Sy
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System Address Map Interfaces EAX F
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System Address Map Interfaces 15.3
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System Address Map Interfaces Base
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Waking and Sleeping 16 Waking and S
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Waking and Sleeping 16.1 Sleeping S
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Waking and Sleeping synchronized wi
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Waking and Sleeping 3. Removing pow
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Waking and Sleeping The _TTS contro
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Waking and Sleeping on what the har
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Waking and Sleeping CLI instruction
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Waking and Sleeping For this exampl
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Waking and Sleeping If an NVS image
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Platforms Non-Uniform Memory Access
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Platforms Non-Uniform Memory Access
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ACPI Platform Error Interfaces (APE
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Appendix A Device Class Specificati
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• PCI Bus Power Management Capabi
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A.4.1 Power State Definitions State
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A.5.1 Power State Definitions State
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A.6.1.2 Internal Flat Panel Devices
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power transitions and power managem
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A video controller conforming to th
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State Status Definition D2 N/A This
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The most common modem type is an IS
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State Status Definition D1 Optional
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A.10.1 Power State Definitions Stat
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A.11.1 Power State Definitions A.11
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A floppy disk and IDE channel devic
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Appendix B Video Extensions B.1 ACP
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GPE // ACPI General-purpose HW even
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B.3.2 _DOD (Enumerate All Devices A
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Pipe / Head Ports Display Types Dis
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the next boot, a 1 indicates a PCI
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Value 0x84 Description Previous Dis
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B.5.5 _DDC (Return the EDID for thi
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Bits Definition 31 0 - Don’t do a
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internal data structure of the OS t
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Symbols _EJx 334 ??????????????????
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Power Resource statements 391 prima
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centenary value, RTC alarm 83 Centr
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power resource objects 398 D2 Devic
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Eject Device List (_EDL) object 332
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features 68 functional implementati
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I/O resource flag 366 I/O SAPIC def
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logic fixed power button 77 lid swi
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objects _ BMC (Battery Maintenance
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transitioning working to soft-off s
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power resources battery management
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definition 22 table fields 115 RTC_
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protocols 650, 662, 669 Read/Write
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top of memory 704 ToString (Convert
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