Fedora 23 and DisplayPort with audio

[Mark]

Hi

I recently updated my computer with a Asus z97a motherboard and a 
i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I have
in the computer. Now the monitor that I use comes with integrated
loudspeakers that I would like to use and if I connect my monitor with
the motherboard over HDMI I have both video and audio. That's nice. But
if I try to use DisplayPort instead I get no audio. The reason I would
like have DP instead of HDMI is that the former can drive the monitor
at 60Hz instead of 50Hz. In Gnome Settings -> Sound the options are the
same regardless of which cable I use.

Not the biggest problem in the world, but it would be nice to get some
insight if this is a problem that can be solved?

Also I get video over DP only with version set to 1.1 If I in the
monitor menu switch to DP 1.2 the screen will just go black.

[stan]

On Thu, 02 Jun 2016 22:14:33 +0200
Mark  wrote:
> Hi
>
> I recently updated my computer with a Asus z97a motherboard and a 
> i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I
> have in the computer. Now the monitor that I use comes with integrated
> loudspeakers that I would like to use and if I connect my monitor with
> the motherboard over HDMI I have both video and audio. That's nice.
> But if I try to use DisplayPort instead I get no audio. The reason I
> would like have DP instead of HDMI is that the former can drive the
> monitor at 60Hz instead of 50Hz. In Gnome Settings -> Sound the
> options are the same regardless of which cable I use.
>
> Not the biggest problem in the world, but it would be nice to get some
> insight if this is a problem that can be solved?
>
> Also I get video over DP only with version set to 1.1 If I in the
> monitor menu switch to DP 1.2 the screen will just go black.

This site,
http://superuser.com/questions/229084/does-displayport-carry-sound-as-hdmi-d...
suggests that display port supports audio, but the video driver has to
provide the support.

[Dylan Thiedeke]

What is your output for

$ aplay -l

As mentioned here https://bugzilla.redhat.com/show_bug.cgi?id=1268786 ,
is there additional or update firmware/drivers you could install?

On 03/06/16 06:14, Mark wrote:
> Hi
>
> I recently updated my computer with a Asus z97a motherboard and a 
> i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I have
> in the computer. Now the monitor that I use comes with integrated
> loudspeakers that I would like to use and if I connect my monitor with
> the motherboard over HDMI I have both video and audio. That's nice. But
> if I try to use DisplayPort instead I get no audio. The reason I would
> like have DP instead of HDMI is that the former can drive the monitor
> at 60Hz instead of 50Hz. In Gnome Settings -> Sound the options are the
> same regardless of which cable I use.
>
> Not the biggest problem in the world, but it would be nice to get some
> insight if this is a problem that can be solved?
>
> Also I get video over DP only with version set to 1.1 If I in the
> monitor menu switch to DP 1.2 the screen will just go black.
> --
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[Mark]

On Fri, 2016-06-03 at 06:43 +1000, Dylan Thiedeke wrote:
> What is your output for
>
> $ aplay -l
>
> As mentioned here https://bugzilla.redhat.com/show_bug.cgi?id=1268786
>  ,
> is there additional or update firmware/drivers you could install?

$ aplay -l gives

**** List of PLAYBACK Hardware Devices ****
card 1: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 3: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

and this is what it gives after powered down the computer, removed the
HDMI cable and switched to DP

**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 3: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

The graphics device is Intel Iris Pro 6200 (Broadwell GT3e). I haven't
installed any special drivers or firmware. It's just the what comes
with the Fedora OS that drives the graphics and audio.

[Ed Greshko]

On 06/03/16 14:15, Mark wrote:
> On Fri, 2016-06-03 at 06:43 +1000, Dylan Thiedeke wrote:
> > What is your output for
> >
> > $ aplay -l
> >
> > As mentioned here https://bugzilla.redhat.com/show_bug.cgi?id=1268786
> >  ,
> > is there additional or update firmware/drivers you could install?
>
> $ aplay -l gives
>
> **** List of PLAYBACK Hardware Devices ****
> card 1: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0
> card 2: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 2: PCH [HDA Intel PCH], device 3: ALC892 Digital [ALC892 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> and this is what it gives after powered down the computer, removed the
> HDMI cable and switched to DP
>
> **** List of PLAYBACK Hardware Devices ****
> card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: PCH [HDA Intel PCH], device 3: ALC892 Digital [ALC892 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> The graphics device is Intel Iris Pro 6200 (Broadwell GT3e). I haven't
> installed any special drivers or firmware. It's just the what comes
> with the Fedora OS that drives the graphics and audio.

I have found it better to use the command "aplay -L" to list the available devices since
the output can be then used to directly test.

I am using an nVidia card with the nVidia drivers so the relevant portion from my system
would be

hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 2
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 3
    HDMI Audio Output

I have 2 ASUS PB258Q monitors.  One is connected to an HDMI port and the other the display
port.

To play on the HDMI connected monitor's speakers I can use...

[egreshko@meimei ~]$ aplay -Dhdmi:CARD=NVidia,DEV=1 05-Born_To_Run.wav
Playing WAVE '05-Born_To_Run.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

To play on the DP connected monitor's speakers I can use...

[egreshko@meimei ~]$ aplay -Dhdmi:CARD=NVidia,DEV=2 05-Born_To_Run.wav
Playing WAVE '05-Born_To_Run.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

But I have Bose external speakers so I never use the monitor speakers as they sound
horrible in comparison.  :-)

[Andre Robatino]

I have a PC that outputs DP, but with video only. My monitor supports DVI without audio, and HDMI with audio. When I used a DP-to-HDMI adaptor, the monitor assumed it was getting audio through the HDMI, even though it wasn't, and it disabled the audio jack, so I couldn't even get audio through the jack. I was forced to give up on HDMI and instead use a DP-to-DVI adaptor. Since the monitor knew it wasn't getting audio through DVI, it allowed audio through the audio jack.

[Andre Robatino]

Please disregard, it appears my reply is not relevant to your problem (except that your PC's DP output may not include audio). Sorry for the noise.

[Frank Elsner]

On Thu, 02 Jun 2016 22:14:33 +0200 Mark wrote:
> Hi
>
> I recently updated my computer with a Asus z97a motherboard and a 
> i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I have
> in the computer. Now the monitor that I use comes with integrated
> loudspeakers that I would like to use and if I connect my monitor with
> the motherboard over HDMI I have both video and audio. That's nice. But
> if I try to use DisplayPort instead I get no audio. The reason I would
> like have DP instead of HDMI is that the former can drive the monitor
> at 60Hz instead of 50Hz. In Gnome Settings -> Sound the options are the
> same regardless of which cable I use.

Gnome Settings is probably not enough. You should try pavucontrol 
for routing the output to the DisplayPort.

--Frank

[Mark]

On Thu, 2016-06-02 at 22:14 +0200, Mark wrote:
> Hi
>
> I recently updated my computer with a Asus z97a motherboard and a 
> i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I
> have
> in the computer. Now the monitor that I use comes with integrated
> loudspeakers that I would like to use and if I connect my monitor
> with
> the motherboard over HDMI I have both video and audio. That's nice.
> But
> if I try to use DisplayPort instead I get no audio. The reason I
> would
> like have DP instead of HDMI is that the former can drive the monitor
> at 60Hz instead of 50Hz. In Gnome Settings -> Sound the options are
> the
> same regardless of which cable I use.
>
> Not the biggest problem in the world, but it would be nice to get
> some
> insight if this is a problem that can be solved?

Not sure why but today audio over DP works :) Might have been the been
the new kernel 4.5.5 that was just released?