keiner99 Posted June 11, 2014 Share Posted June 11, 2014 Hi i don't know how to enable the hdmi audio on my lenovo u410 ideapad.. cpu is a i3 2367m with intel hd 3000 graphics with a intel 7 chipset mainboard (sandy/ivy mixed) everything is working perfectly, expect hdmi audio.. i use a dsdt to enable the intel hd 3000 on series 7 mainboard and also a patched apple hda with a dsdt HDEF edit to enable cx20590 sound how could i enable hdmi audio? is it possible? do i have to patch a kext or something else? (i use all original graphic kexts, is only working with dsdt) here is the patch for intel hd 3000: In device IGPU i added: Method (_DSM, 4, NotSerialized) // _DSM: Device-Specific Method { If (LEqual (Arg2, Zero)) { Return (Buffer (One) { 0x03 }) } Return (Package (0x04) { "AAPL,snb-platform-id", Buffer (0x04) { 0x00, 0x00, 0x01, 0x00 }, "hda-gfx", Buffer (0x0A) { "onboard-2" and this is the patch for cx20590 sound in device HDEF Method (_DSM, 4, NotSerialized) // _DSM: Device-Specific Method { Store (Package (0x0C) { "codec-id", Buffer (0x04) { 0x6E, 0x50, 0xF1, 0x14 }, "layout-id", Buffer (0x04) { 0x0C, 0x00, 0x00, 0x00 }, "PinConfigurations", Buffer (Zero) {}, "hda-gfx", Buffer (0x0A) { "onboard-1" }, "device-type", Buffer (0x11) { "Conexant CX20590" }, "MaximumBootBeepVolume", Buffer (One) { 0x4D } }, Local0) DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0)) Return (Local0) } } do i need another dsdt patch or something else to enable hdmi audio? attached is my patched dsdt thanks for your help keiner99 Link to comment Share on other sites More sharing options...
toleda Posted June 12, 2014 Share Posted June 12, 2014 do i need another dsdt patch or something else to enable hdmi audio? dsdt/IGPU. edit onboard-2 to onboard-1 More info, Post #1, Mavericks AppleHDA HDMI Audio - OSx86 10.9 (Mavericks) - InsanelyMac Forum Link to comment Share on other sites More sharing options...
keiner99 Posted June 12, 2014 Author Share Posted June 12, 2014 thanks for your help toleda! i changed onboard-2 to onboard-1 in IGPU but nothing happend no change! attached my ioreg and my dsdt, maybe you can have a look at it is it possible that hdmi audio works only with realtek alcXXX? lenovo_ioreg.zip DSDT_.aml.zip Link to comment Share on other sites More sharing options...
toleda Posted June 12, 2014 Share Posted June 12, 2014 i changed onboard-2 to onboard-1 in IGPU but nothing happend Framebuffer edit required: Haven't look at the current SNB kext, a value or two may be different, adjust as necessary AppleIntelSNBGraphicsFB Binary native 01 02 04 00 10 07 00 00 10 07 00 00 05 03 00 00 02 00 00 00 30 00 00 00 02 05 00 00 00 04 00 00 07 00 00 00 03 04 00 00 00 04 00 00 09 00 00 00 04 06 00 00 00 04 00 00 09 00 00 00 edited 01 02 02 00 10 07 00 00 10 07 00 00 05 03 00 00 02 00 00 00 30 00 00 00 02 05 00 00 00 08 00 00 07 00 00 00 03 04 00 00 00 04 00 00 09 00 00 00 04 06 00 00 00 04 00 00 09 00 00 00 Edit: Find: 02 05 00 00 00 04 00 00 07 00 00 00 Replace: 02 05 00 00 00 08 00 00 06 00 00 00 Reply with actual edit and IOReg. Link to comment Share on other sites More sharing options...
keiner99 Posted June 12, 2014 Author Share Posted June 12, 2014 thanks toleda you are awesome!!! now its working attached again my new ioreg if you want to have a look @toleda can you explain me how found out what to change? did you found it with the io reg? how do you know which lines exactly to change that it works? lenovo_hdmi_audio_ioreg.zip Link to comment Share on other sites More sharing options...
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