Could this help? I'm sorry but you have to be patient with me cause my english it's not so good, and not so technical
+-o gpu-sensor <class IOService, id 0x1000003cd, registered, matched, active, busy 0 (6 ms), retain 12>
| | | | | | | {
| | | | | | | "location" = "GPU"
| | | | | | | "compatible" = <"gpu-sensor">
| | | | | | | "zone" = <ff000002>
| | | | | | | "polling-period" = <0000000100000000>
| | | | | | | "sample-period" = <0000000100000000>
| | | | | | | "sensor-id" = <00000006>
| | | | | | | "version" = <00000002>
| | | | | | | "reg" = <00000007>
| | | | | | | "name" = <"gpu-sensor">
| | | | | | | "device_type" = <"gpu-sensor">
| | | | | | | }
| | | | | | |
| | | | | | +-o IOHWSensor <class IOHWSensor, id 0x1000003ce, registered, matched, active, busy 0 (2 ms), retain 13>
| | | | | | {
| | | | | | "IOClass" = "IOHWSensor"
| | | | | | "CFBundleIdentifier" = "com.apple.driver.AppleHWSensor"
| | | | | | "IOProviderClass" = "IOService"
| | | | | | "IOPropertyMatch" = {"device_type"="gpu-sensor"}
| | | | | | "zone" = <ff000002>
| | | | | | "version" = 2
| | | | | | "IOPowerManagement" = {"CurrentPowerState"=0}
| | | | | | "IOProbeScore" = 0
| | | | | | "sensor-id" = 6
| | | | | | "polling-period-ns" = 18446744073709551615
| | | | | | "IOMatchCategory" = "IODefaultMatchCategory"
| | | | | | "type" = "gpu"
| | | | | | "polling-period" = 18446744073709551615
| | | | | | "location" = "GPU"
| | | | | | "current-value" = 6553600
| | | | | | }
| | | | | |
| | | | | +-o IOFramebufferI2CInterface <class IOFramebufferI2CInterface, id 0x1000003d1, registered, matched, active, busy 0 (1 ms), retain 11>
| | | | | | {
| | | | | | "IOI2CBusType" = 1
| | | | | | "IOI2CSupportedCommFlags" = 3
| | | | | | "IOI2CTransactionTypes" = 31
| | | | | | "IOI2CInterfaceID" = 1001281258950492160
| | | | | | }
| | | | | |
| | | | | +-o display0 <class IODisplayConnect, id 0x1000003d2, registered, matched, active, busy 0 (3 ms), retain 11>
| | | | | | | {
| | | | | | | }
| | | | | | |
| | | | | | +-o AppleBacklightDisplay <class AppleBacklightDisplay, id 0x1000003d3, registered, matched, active, busy 0 (1 ms), retain 14>
| | | | | | {
| | | | | | "IOClass" = "AppleBacklightDisplay"
| | | | | | "CFBundleIdentifier" = "com.apple.iokit.IOGraphicsFamily"
| | | | | | "IOProviderClass" = "IODisplayConnect"
| | | | | | "DisplayProductID" = 40100
| | | | | | "IODisplayEDID" = <00ffffffffffff000610a49c0000000016130103802115780ae585a3544f9c260e505400000001 010101010101010101010101010101ab22a0a050841a30302036004bcf1000001900000001000610 3000000000000000000a20000000fe004c544e31353442543038000a20000000fc00436f6c6f7220 4c43440a20202000ac>
| | | | | | "IODisplayPrefsKey" = "Alias:0/AppleBacklightDisplay-610-9ca4"
| | | | | | "IODisplayParameters" = {"commit"={"reg"=0},"dsyp"={"min"=0,"max"=2,"value"=2},"rgsc"={"min"=0,"max"=65 536,"value"=65536},"thrm"={"min"=0,"max"=255,"value"=71},"brightness"={"max"=102 4,"min"=0,"value"=640},"bgsc"={"min"=0,"max"=65536,"value"=65536},"ggsc"={"min"= 0,"max"=65536,"value"=65536},"dith"={"min"=0,"max"=1,"value"=0},"usable-linear-b rightness"={"min"=36,"max"=902,"value"=249},"linear-brightness"={"min"=0,"max"=9 02,"value"=249}}
| | | | | | "IOProbeScore" = 3000
| | | | | | "IODisplayGUID" = 436849163854938112
| | | | | | "IOPowerManagement" = {"DevicePowerState"=3,"CurrentPowerState"=3}
| | | | | | "IOMatchCategory" = "IODefaultMatchCategory"
| | | | | | "AppleDisplayType" = 2
| | | | | | "AppleSense" = 1854
| | | | | | "IODisplayConnectFlags" = <84490000>
| | | | | | "DisplayVendorID" = 1552
| | | | | | "DisplayParameterHandlerUsesCharPtr" = Yes
| | | | | | }