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<body><span class="vcard"><a class="email" href="mailto:quanxian.wang@intel.com" title="qwang13 <quanxian.wang@intel.com>"> <span class="fn">qwang13</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - DP audio not work on KBL(regression issue)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104093">bug 104093</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
</td>
<td>ASSIGNED
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - DP audio not work on KBL(regression issue)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104093#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - DP audio not work on KBL(regression issue)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104093">bug 104093</a>
from <span class="vcard"><a class="email" href="mailto:quanxian.wang@intel.com" title="qwang13 <quanxian.wang@intel.com>"> <span class="fn">qwang13</span></a>
</span></b>
<pre>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@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
….</pre>
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