[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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https://bugs.freedesktop.org/show_bug.cgi?id=91371

Martin Peres  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

--- Comment #11 from Martin Peres  ---
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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91371

--- Comment #10 from Andy Furniss  ---
(In reply to Andy Furniss from comment #9)

> I played a bit more round this eld thing and it seems there is a bug 

Of course it's not a bug at all if you read FL/FR FC as stereo OR mono ...

Whatever it seems to be nothing to do with the issue here anyway.

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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https://bugs.freedesktop.org/show_bug.cgi?id=91371

--- Comment #9 from Andy Furniss  ---
Created attachment 117279
  --> https://bugs.freedesktop.org/attachment.cgi?id=117279=edit
debug/test diff

I played a bit more round this eld thing and it seems there is a bug - but it
looks like it's the same for older radeon dce as well, and "fixing" it doesn't
get me sound on the TV - it does of course make /proc/asound eld look saner.

The difference between my monitor and the TV is that the monitor has a speaker
layout block and the TV doesn't. So the monitor hits the the "if" in the
attached diff and the value of sadb[0] is 1. 

The TV hits the else and gets allocated a value of 5 which is commented as
stereo, but according to the edid sections of CEA B and D stereo is 1 and 5 is
just like I see in /proc/asound  Fl/Fr Fc.

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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https://bugs.freedesktop.org/show_bug.cgi?id=91371

--- Comment #8 from Andy Furniss  ---
Created attachment 117268
  --> https://bugs.freedesktop.org/attachment.cgi?id=117268=edit
tv eld ubuntu fglrx

I do get sound from the TV with ubuntu 15.04 and fglrx (with cpu load).

The eld still doesn't quite match eded-decode as only 16 is listed as sample
size but it is different from my OSS setup in that it just lists 

speakers[0x1] FL/FR

rather than the eronious extra "C" in the tv - eld I previously attached.

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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--- Comment #7 from Andy Furniss  ---
(In reply to Andy Furniss from comment #4)
> Another difference I notice between TV and monitor.

> I notice the TV has a different trigger time (what ever that is!) from the
> working monitor.

Hmm well more messing around shows the it's variable on the monitor just got -

trigger_time: 5550.580103154

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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--- Comment #6 from Andy Furniss  ---
Created attachment 117198
  --> https://bugs.freedesktop.org/attachment.cgi?id=117198=edit
monitor edid-decode

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--- Comment #5 from Andy Furniss  ---
Created attachment 117197
  --> https://bugs.freedesktop.org/attachment.cgi?id=117197=edit
monitor eld

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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--- Comment #4 from Andy Furniss  ---
Another difference I notice between TV and monitor.

Results playing the same file in the same (well sort of I guess) mode.

If I poll the status like 

while true
do 
cat /proc/asound/card*/pcm3p/sub0/status
sleep 1 
done

I notice the TV has a different trigger time (what ever that is!) from the
working monitor.

TV =

hw_ptr  : 3248362
appl_ptr: 3260160
state: RUNNING
owner_pid   : 711
trigger_time: 8886.763851145
tstamp  : 0.0
delay   : 11721
avail   : 279
avail_max   : 279

monitor =

hw_ptr  : 1137764
appl_ptr: 1149600
state: RUNNING
owner_pid   : 493
trigger_time: 2439.504907490
tstamp  : 0.0
delay   : 11643
avail   : 357
avail_max   : 357

I'll attach edid and eld from monitor.

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--- Comment #3 from Andy Furniss  ---
Created attachment 117193
  --> https://bugs.freedesktop.org/attachment.cgi?id=117193=edit
TV - eld

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--- Comment #2 from Andy Furniss  ---
Created attachment 117192
  --> https://bugs.freedesktop.org/attachment.cgi?id=117192=edit
Tv edid decode

I checked "Linear PCM, max channels 1" and it's an edid-decode issue the specs
say it's stored -1 and the edid-decode code just reports what's in the data
when it should really add one.

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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--- Comment #1 from Andy Furniss  ---
Created attachment 117191
  --> https://bugs.freedesktop.org/attachment.cgi?id=117191=edit
Patch to add tonga audio pciid

Forgot to say - the behavior is the same with or without my audio pciid added
to kernel. 

Of course I don't know if the patch is right for amdgpu h/w (I did also test
without the _NS but it made no difference).

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[Bug 91371] Tonga HDMI Audio none on TV working on monitor - possible eld issue

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https://bugs.freedesktop.org/show_bug.cgi?id=91371

Bug ID: 91371
   Summary: Tonga HDMI Audio none on TV working on monitor -
possible eld issue
   Product: DRI
   Version: DRI git
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: DRM/AMDgpu
  Assignee: dri-devel at lists.freedesktop.org
  Reporter: adf.lists at gmail.com

I have so far not managed to get any HDMI audio from my TV via R9 285.

I can get HDMI sound when connected to a monitor (with cpu load)

With other h/w this TV has recently been OK with a bit of messing around eg.
extra run of xrandr + cpu load for R9 270x. RS880 and rv770 worked without the
cpu load.

Added complication since getting a new mobo I sometimes get i2c edid read fails
on the TV - but then it's not always and the rv770 produced them and worked and
the tonga always works for sound with the TV in windows.

I noticed that for the TV the eld does not match what edid decode reports - it
only shows one sample rate and shows "Fl/Fr C" when it's only 2 channel. TBH I
don't know what eld said historically with different h/w.

edid-decode and eld for TV attached.

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