No sound over hdmi

[Alex Gurenko]

Hello everyone, I found myself in a need to connect my Lenovo T460p laptop over HDMI to a
TV and I have no sound going over HDMI.
 I saw a thread about 4 months ago with no solution found back then.
I'm on Fedora 29 KDE, kernel 4.20.13-200.fc29.x86_64. I don't see that HDMI audio
device becomes active neither via cli, no in gui. Video output works perfectly fine.
I'm using bumblebee with nvidia proprietary drivers, not sure if that's relevant;
aplay -l shows that HDMI is handled by intel's graphics:

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC293 Analog [ALC293 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0

Found these two BZs [0][1] which kind of indicates it's been broken since F28:
[0] https://bugzilla.redhat.com/show_bug.cgi?id=1684943
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1664816

Any ideas what can be done here?

[Neal Becker]

Alex Gurenko wrote:

>  Hello everyone, I found myself in a need to connect my Lenovo T460p
> laptop
>  over HDMI to a TV and I have no sound going over HDMI.
>   I saw a thread about 4 months ago with no solution found back then.
>  I'm on Fedora 29 KDE, kernel 4.20.13-200.fc29.x86_64. I don't see that
>  HDMI audio device becomes active neither via cli, no in gui. Video output
>  works perfectly fine. I'm using bumblebee with nvidia proprietary drivers,
>  not sure if that's relevant; aplay -l shows that HDMI is handled by
>  intel's graphics:
>  
>  **** List of PLAYBACK Hardware Devices ****
>  card 0: PCH [HDA Intel PCH], device 0: ALC293 Analog [ALC293 Analog]
>  Subdevices: 0/1
>  Subdevice #0: subdevice #0
>  card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>  card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>  card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>  card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>  card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>  
>  Found these two BZs [0][1] which kind of indicates it's been broken since
>  F28:
>  [0] https://bugzilla.redhat.com/show_bug.cgi?id=1684943
>  [1] https://bugzilla.redhat.com/show_bug.cgi?id=1664816
>  
>  Any ideas what can be done here? 
usually when I connect an hdmi cable I need to killall pulseaudio, then it 
will work via pavucontrol, although typically kde sound control still may 
not show it.

[Alex Gurenko]

Yeah, that worked, but disappointing, that it does not work as in other DEs. Tried booting
Gnome version of Fedora, works out of the box there, so definitely something in KDE build.
I'm pretty sure it used to work around F27.

Alex


‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Wednesday, March 20, 2019 3:14 PM, Neal Becker <ndbecker2(a)gmail.com&gt; wrote:

>  Alex Gurenko wrote:
>
>  > Hello everyone, I found myself in a need to connect my Lenovo T460p laptop
>  > over HDMI to a TV and I have no sound going over HDMI.
>  > I saw a thread about 4 months ago with no solution found back then.
>  > I'm on Fedora 29 KDE, kernel 4.20.13-200.fc29.x86_64. I don't see that
>  > HDMI audio device becomes active neither via cli, no in gui. Video output
>  > works perfectly fine. I'm using bumblebee with nvidia proprietary drivers,
>  > not sure if that's relevant; aplay -l shows that HDMI is handled by
>  > intel's graphics:
>  > **** List of PLAYBACK Hardware Devices ****
>  > card 0: PCH [HDA Intel PCH], device 0: ALC293 Analog [ALC293 Analog]
>  > Subdevices: 0/1
>  > Subdevice #0: subdevice #0
>  > card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
>  > Subdevices: 1/1
>  > Subdevice #0: subdevice #0
>  > card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
>  > Subdevices: 1/1
>  > Subdevice #0: subdevice #0
>  > card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
>  > Subdevices: 1/1
>  > Subdevice #0: subdevice #0
>  > card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
>  > Subdevices: 1/1
>  > Subdevice #0: subdevice #0
>  > card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
>  > Subdevices: 1/1
>  > Subdevice #0: subdevice #0
>  > Found these two BZs [0][1] which kind of indicates it's been broken since
>  > F28:
>  > [0] https://bugzilla.redhat.com/show_bug.cgi?id=1684943
>  > [1] https://bugzilla.redhat.com/show_bug.cgi?id=1664816
>  > Any ideas what can be done here?
>
>  usually when I connect an hdmi cable I need to killall pulseaudio, then it
>  will work via pavucontrol, although typically kde sound control still may
>  not show it.
>
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