[Bug 98797] New: BXT - HDMI - HD audio passthrough dont work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98797

            Bug ID: 98797
           Summary: BXT - HDMI - HD audio passthrough dont work
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: piotr.kasprzak at me.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 128087
  --> https://bugs.freedesktop.org/attachment.cgi?id=128087&action=edit
Hardware log

Hi
Im owner of Asrock maiboard J3455-itx which i based on Apollo Lake CPU (broxton
GPU)

i have problem get working HD audio passthrough.
I know on mainboard is chip which convert DP 1.2 to HDMI 2.0
this one http://www.megachips.com/products/displayport/MCDP28x0

Normal AC3 sound and DTS working, any higher format not.
Im using latest kernel fork drm-intel-nighlty ( drm-intel-nightly:
2016y-11m-18d-22h-35m-31s UTC ) with merged latest asock kernel-next chnages.

Im also in my test build used, latest x86-video-intel driver, latest mesa,
xorg, libvaapi etc. 


System is LibreELEC (linux with Kodi)
i have connected maniboard to AVR Harman BDS570 which support TureHD and DTS-MA
what Kodi me exposed in log file

13:31:11.773 T:140598541641792  NOTICE:         m_deviceName      :
hdmi:CARD=PCH,DEV=0
13:31:11.773 T:140598541641792  NOTICE:         m_displayName     : HDA Intel
PCH
13:31:11.773 T:140598541641792  NOTICE:         m_displayNameExtra: HKK SAMSUNG
on DisplayPort #0
13:31:11.773 T:140598541641792  NOTICE:         m_deviceType      :
AE_DEVTYPE_HDMI
13:31:11.773 T:140598541641792  NOTICE:         m_channels        :
FL,FR,LFE,FC,BL,BR
13:31:11.773 T:140598541641792  NOTICE:         m_sampleRates     :
32000,44100,48000,88200,96000,176400,192000
13:31:11.773 T:140598541641792  NOTICE:         m_dataFormats     :
AE_FMT_RAW,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_RAW
13:31:11.773 T:140598541641792  NOTICE:         m_streamTypes     :
STREAM_TYPE_AC3,STREAM_TYPE_DTSHD,STREAM_TYPE_DTSHD_CORE,STREAM_TYPE_DTS_1024,STREAM_TYPE_DTS_2048,STREAM_TYPE_DTS_512,STREAM_TYPE_EAC3,STREAM_TYPE_TRUEHD

but no HD sound.

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