Jump to content
3 posts in this topic

Recommended Posts

i have very weird problem with my g570 Lenovo laptop in Sierra. nearly everything working except HDMI . actually my laptop see tv from hdmi port  when it is closed but when I try to open tv hdmi and second display loosing and no signal .you can see what I mean attached pictures. I tried everything every patch etc but no success . can anybody help me about this situation . Thanks 

 

here my all attachments 

 

NOTE : my laptop has dual gpu 

 

Intel HD Graphics 3000 and AMD Radeon HD 6370M. AMD is disabled from bios 

ioreg.zip

pictures.zip

DSDT.aml.zip

config.plist.zip

Link to comment
https://www.insanelymac.com/forum/topic/332618-lenovo-g570-weired-hdmi-problem/
Share on other sites

Rename GFX to IGPU and add this patch in your DSDT:

Device (IGPU)
{
Name (_ADR, 0x00020000)
Method (_DSM, 4, NotSerialized)
{
Store (Package (0x06)
{
"AAPL,snb-platform-id", 
Buffer (0x04)
{
0x00, 0x00, 0x01, 0x00
}, 

"hda-gfx", 
Buffer (0x0A)
{
"onboard-2"
}, 

"device-id", 
Buffer (0x04)
{
0x12, 0x01, 0x00, 0x00
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}

 

Rename GFX to IGPU and add this patch in your DSDT:

Device (IGPU)
{
Name (_ADR, 0x00020000)
Method (_DSM, 4, NotSerialized)
{
Store (Package (0x06)
{
"AAPL,snb-platform-id", 
Buffer (0x04)
{
0x00, 0x00, 0x01, 0x00
}, 

"hda-gfx", 
Buffer (0x0A)
{
"onboard-2"
}, 

"device-id", 
Buffer (0x04)
{
0x12, 0x01, 0x00, 0x00
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}

 

thank you for your reply. I tried this before even again but my problem is tv behave strange . when I open tv extendeddisplay gone in display pref. but when i turned it of then I can see tv as a second display. it is totally up side down 

×
×
  • Create New...