[Bug 104093] DP audio not work on KBL(regression issue)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104093

qwang13 <quanxian.wang at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #11 from qwang13 <quanxian.wang at intel.com> ---
Our test result:
Case-1: Settings->sound->select ‘Speaker build-in audio’
Test result: DP audio doesn’t work on all the platforms attached all the
monitors with different resolutions.
Case-2: Settings->sound->select “HDMI/DisplayPort Build-in Audio”
Test result: DP audio do work on all the platforms attached all the monitors
with different resolutions.

Jani's patch
Jani’s patch and Quanxian’s original patch all don’t work with the case-1
setting.

1-ASUS
Model: PA238 Manufacture: ASUS

2-Philips
Model: BDM4350
Manufacture: PHILIPS

3-HP:
Model: ZR2440w
Manufacture: HP


Test Result information
=============
System information:
Platform : KBL
System: 17.10
Kernel: 4.13 (official, no any update)

test at test-Kabylake-Client-platform:~$ cat /proc/asound/card0/eld#2.0
monitor_present         1
eld_valid               1
monitor_name            HP ZR2440w
connection_type         DisplayPort               ***  this is DP audio port
***
eld_version             [0x2] CEA-861D or below
edid_version            [0x3] CEA-861-B, C or D
manufacture_id          0xf022
product_id              0x2954
port_id                 0x0
support_hdcp            0
support_ai              0
audio_sync_delay        0
speakers                [0x1] FL/FR
sad_count               1
sad0_coding_type        [0x1] LPCM
sad0_channels           2
sad0_rates              [0xe0] 32000 44100 48000
sad0_bits               [0xe0000] 16 20 24

Command:
speaker-test -t wav -c 2 -Dplughw:0,3

Output:
speaker-test 1.1.3

Playback device is plughw:0,3
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 16384
Period size range from 32 to 8192
Using max buffer size 16384
Periods = 4
was set period_size = 4096
was set buffer_size = 16384
0 - Front Left
1 - Front Right
Time per period = 2.732593
0 - Front Left
1 - Front Right
Time per period = 2.986920
0 - Front Left
1 - Front Right
Time per period = 2.986144
0 - Front Left
1 - Front Right
Time per period = 3.071854
0 - Front Left
1 - Front Right
….

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