drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

[Dieter Nützel]

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Hello Alex,

I get this in dmesg:

[   26.001926] [drm:radeon_atom_pick_dig_encoder [radeon]] *ERROR* 
chosen encoder in use 4

What do you need?

-Dieter

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Fwd: drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

[Dieter Nützel]

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Hello Dave,

latest change comes from you.

author	Dave Airlie <airlied@redhat.com>	2015-02-23 23:24:03 (GMT)
committer	Alex Deucher <alexander.deucher@amd.com>	2015-02-24 19:52:03 
(GMT)
commit	8eeefdc92b7e0b05a627ec7e3cb3ce31c03362ab (patch)

Any idea?

Thanks,
   Dieter

-------- Originalnachricht --------
Betreff: drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4
Datum: 25.02.2015 05:20
Von: Dieter Nützel <Dieter@nuetzel-hh.de>
An: Alex Deucher <alexdeucher@gmail.com>
Kopie: Dri Devel <dri-devel@lists.freedesktop.org>

Hello Alex,

I get this in dmesg:

[   26.001926] [drm:radeon_atom_pick_dig_encoder [radeon]] *ERROR* 
chosen encoder in use 4

What do you need?

-Dieter
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Re: drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

[Alex Deucher]

On Tue, Feb 24, 2015 at 11:20 PM, Dieter Nützel <Dieter@nuetzel-hh.de> wrote:
> Hello Alex,
>
> I get this in dmesg:
>
> [   26.001926] [drm:radeon_atom_pick_dig_encoder [radeon]] *ERROR* chosen
> encoder in use 4
>
> What do you need?

The message is harmless I think.  It's just debugging output from the
DP MST patches.  I think what's happening is that when you change the
mode on an encoder that is already enabled, it see that the encoder is
already in use (by itself).  I think the fix would be to call
radeon_atom_release_dig_encoder() in the encoder prepare callback, but
I'm not sure if that will negatively affect MST or not.  Dave?

Alex


>
> -Dieter
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Re: drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

[Dave Airlie]

On 26 February 2015 at 06:22, Alex Deucher <alexdeucher@gmail.com> wrote:
> On Tue, Feb 24, 2015 at 11:20 PM, Dieter Nützel <Dieter@nuetzel-hh.de> wrote:
>> Hello Alex,
>>
>> I get this in dmesg:
>>
>> [   26.001926] [drm:radeon_atom_pick_dig_encoder [radeon]] *ERROR* chosen
>> encoder in use 4
>>
>> What do you need?
>
> The message is harmless I think.  It's just debugging output from the
> DP MST patches.  I think what's happening is that when you change the
> mode on an encoder that is already enabled, it see that the encoder is
> already in use (by itself).  I think the fix would be to call
> radeon_atom_release_dig_encoder() in the encoder prepare callback, but
> I'm not sure if that will negatively affect MST or not.  Dave?

well we can drop the message down to debug_kms, I'll have a look
to see if we need to do a release there, its probably safe but I'd have to
test it.

Dave.
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Re: drm-next-4.1-wip: NI/Turks *ERROR* chosen encoder in use 4

[Dieter Nützel]

Am 25.02.2015 23:02, schrieb Dave Airlie:
> On 26 February 2015 at 06:22, Alex Deucher <alexdeucher@gmail.com> 
> wrote:
>> On Tue, Feb 24, 2015 at 11:20 PM, Dieter Nützel <Dieter@nuetzel-hh.de> 
>> wrote:
>>> Hello Alex,
>>> 
>>> I get this in dmesg:
>>> 
>>> [   26.001926] [drm:radeon_atom_pick_dig_encoder [radeon]] *ERROR* 
>>> chosen
>>> encoder in use 4
>>> 
>>> What do you need?
>> 
>> The message is harmless I think.  It's just debugging output from the
>> DP MST patches.  I think what's happening is that when you change the
>> mode on an encoder that is already enabled, it see that the encoder is
>> already in use (by itself).  I think the fix would be to call
>> radeon_atom_release_dig_encoder() in the encoder prepare callback, but
>> I'm not sure if that will negatively affect MST or not.  Dave?
> 
> well we can drop the message down to debug_kms, I'll have a look
> to see if we need to do a release there, its probably safe but I'd have 
> to
> test it.
> 
> Dave.

Fixed in (new) drm-next-4.1-wip by commit:
	2248a6a41473e4a77391a2163284fe0683eac165

Thanks Dave and Alex!

-Dieter
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