关于ACER E5 572G （57dw）dsdt 问题
关于dsdt中显卡部分的问题
说出问题之前先上配置信息：
机型：ACER E5 572G 57DW
CPU：Intel Core i5 4210M
显 卡：Intel HD Graphics 4600
nVIDIA GeForce 840M
声卡：ALC 283
网卡：Realtek RTL 8111
BCM94352hmb
一、我初始dsdt里没有核显和独显的数据描述部分，是我从ssdt里挪过来的，起初只将
[*] Device (IGPU)
[*] {
[*] Name (_ADR, 0x00020000)// _ADR: Address
[*] }
挪过来的时候，无论是否含有独显屏蔽补丁，独显都屏蔽失效，没挪过来之前，独显屏蔽有效；
而后我再将独显部分的描述代码挪过来的时候，发现独显屏蔽生效，挪过来的部分代码如下：
[*]Name (LTRS, Zero)
[*] Name (OBFS, Zero)
[*] Device (PEG0)
[*] {
[*] Name (_ADR, 0x00010000)// _ADR: Address
[*] OperationRegion (PEGR, PCI_Config, 0xC0, 0x30)
[*] Field (PEGR, DWordAcc, NoLock, Preserve)
[*] {
[*] Offset (0x02),
[*] PSTS, 1,
[*] Offset (0x2C),
[*] GENG, 1,
[*] , 1,
[*] PMEG, 1
[*] }
[*]
[*] Device (PEGP)
[*] {
[*] Name (_ADR, Zero)// _ADR: Address
[*] Method (_PRW, 0, NotSerialized)// _PRW: Power Resources for Wake
[*] {
[*] Return (GPRW (0x09, 0x04))
[*] }
[*] }
[*] }
二、当我再注入核显参数时发现：无论有无独显屏蔽补丁，独显都屏蔽失效；注入的信息是以下蓝色字体：
[*]Device (IGPU)
[*] {
[*] Name (_ADR, 0x00020000)// _ADR: Address
[*] Method (_DSM, 4, NotSerialized)// _DSM: Device-Specific Method
[*] {
[*] If (LEqual (Arg2, Zero))
[*] {
[*] Return (Buffer (One)
[*] {
[*] 0x03
[*] })
[*] }
[*]
[*] Return (Package (0x0A)
[*] {
[*] "AAPL,slot-name",
[*] Buffer (0x10)
[*] {
[*] "PCI Express 3.0"
[*] },
[*]
[*] "Built-In",
[*] Buffer (0x03)
[*] {
[*] "00"
[*] },
[*]
[*] "name",
[*] Buffer (0x22)
[*] {
[*] "Intel HD Graphics 4600 Controller"
[*] },
[*]
[*] "model",
[*] Buffer (0x17)
[*] {
[*] "Intel HD Graphics 4600"
[*] },
[*]
[*] "device_type",
[*] Buffer (0x0F)
[*] {
[*] "VGA Controller"
[*] }
[*] })
[*] }
[*] }
三、最后我再注入独显信息的时候发现，无论有无独显屏蔽补丁，独显都能屏蔽，注入的代码如下蓝色字体：
[*]Device (PEGP)
[*] {
[*] Name (_ADR, Zero)// _ADR: Address
[*] Method (_PRW, 0, NotSerialized)// _PRW: Power Resources for Wake
[*] {
[*] Return (GPRW (0x09, 0x04))
[*] }
[*]
[*] Method (_DSM, 4, NotSerialized)// _DSM: Device-Specific Method
[*] {
[*] If (LEqual (Arg2, Zero))
[*] {
[*] Return (Buffer (One)
[*] {
[*] 0x03
[*] })
[*] }
[*]
[*] Return (Package (0x0A)
[*] {
[*] "AAPL,slot-name",
[*] Buffer (0x13)
[*] {
[*] "PCI Express 3.0 x4"
[*] },
[*]
[*] "Built-In",
[*] Buffer (0x03)
[*] {
[*] "00"
[*] },
[*]
[*] "name",
[*] Buffer (0x1F)
[*] {
[*] "nVIDIA GeForce 840M Controller"
[*] },
[*]
[*] "model",
[*] Buffer (0x29)
[*] {
[*] "nVIDIA GeForce 840M (Acer) Video Adapter"
[*] },
[*]
[*] "device_type",
[*] Buffer (0x10)
[*] {
[*] "HDMI Controller"
[*] }
[*] })
[*] }
[*] }
四、独显屏蔽补丁如下：
[*]Device (RMD1)
[*] {
[*] Name (_HID, "RMD10000")// _HID: Hardware ID
[*] Method (_INI, 0, NotSerialized)// _INI: Initialize
[*] {
[*] If (CondRefOf (\_SB.PCI0.PEG0.PEGP._OFF))
[*] {
[*] \_SB.PCI0.PEG0.PEGP._OFF ()
[*] }
[*] }
[*] }
五、效果图：
1、dsdt部分效果图
2、Mac下系统报告效果图：
六、想问问大佬们一下这是什么原理？
另外付上最终dsdt
大佬 你的触摸板正常不
页:
[1]