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主板:H77N-WIFI
CPU:I5 3450
显示卡:蓝宝石HD7850 2G版(四接口DP、HDMI、DVI-D、DVI-I)
DSDT内建显卡ID为6818或S/L/E下AMD7000Controller.kext和AMDRadeonX4000.kext的info加入0x68191002 HDMI可以正常输出,但系统信息显示HD 7xxx ,HDMI不能输出音频,而且不能多屏输出。肯定是FB不正确所至,故此决定修改FB。
DSDT 显卡代码
DSDT加入代码并开启HDMI和DP音频: 查找PEG0,在下面加入 - Method (_DSM, 4, NotSerialized)
- {
- Store (Package (0x0C)
- {
- "device-id",
- Buffer (0x04)
- {
- 0x18, 0x68, 0x00, 0x00
- },
- "@0,name",
- Buffer (0x08)
- {
- "ATY,Aji"
- },
- "@1,name",
- Buffer (0x08)
- {
- "ATY,Aji"
- },
- "@2,name",
- Buffer (0x08)
- {
- "ATY,Aji"
- },
- "model",
- Buffer (0x13)
- {
- "AMD Radeon HD 7850"
- },
- "hda-gfx",
- Buffer (0x0A)
- {
- "onboard-1"
- }
- }, Local0)
- DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
- Return (Local0)
- }
- }
- Device (HDAU)
- {
- Name (_ADR, One)
- Method (_DSM, 4, NotSerialized)
- {
- Store (Package (0x02)
- {
- "hda-gfx",
- Buffer (0x0A)
- {
- "onboard-1"
- }
- }, Local0)
- DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
- Return (Local0)
- }
- }
- }
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