[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Launchpad Bug Tracker]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
   Status: Incomplete => Expired

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Title:
  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

Ok, when I get some time, I'll give it a try. Right now I'm programming
day and night so can't risk destroying my computer...

Thanks for your help!

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Title:
  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Kai-Heng Feng]

Ok, kernel reports HDMI audio is not connected.

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10-rc6/amd64/

Quite likely we'll need to do a kernel bisect later on :)

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  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

Here it is!
Thanks for your help!
B

** Attachment added: "alsa-info.txt.Y1QV6DRNKV"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+attachment/5442213/+files/alsa-info.txt.Y1QV6DRNKV

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Title:
  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Kai-Heng Feng]

Can you please attach output of `sudo alsa-info.sh`?

** Changed in: linux (Ubuntu)
   Status: New => Incomplete

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Daniel van Vugt]

** Changed in: linux (Ubuntu)
   Status: Expired => New

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  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[shag00]

This is still a problem.

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  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Launchpad Bug Tracker]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
   Status: Incomplete => Expired

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Title:
  External HDMI monitor audio always reported as "unplugged"

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Re: [Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

Hi!
Thanks for that help but in the meantime I installed the v5.5-rc7 kernel
using ukuu.  It gave some warnings (see attached) but still booted.

After boot, the HDMI/Display port 2 displayed as "plugged in" in the pulse
audio volume control and the audio did come through the HDMI cable and out
the TV.

Here's the strange part : I then booted on the previous 4.4.0-171-generic
kernel and removed the v5.5-rc7 and rebooted. At this point the
HDMI/Display port 2 displayed as "unplugged" but the sound still worked
over the HDMI connection to the TV. I have no idea why this is or if it
will continue to work.

I've attached screenshots.

Any thoughts would be welcome.
Cheers,
Bob

On Wed, 22 Jan 2020 at 09:30, Daniel van Vugt 
wrote:

> The kernel packages have no dependencies. The ones you would need for
> desktop are:
>
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
> headers-5.5.0-050500rc7_5.5.0-050500rc7.202001192030_all.deb
>
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
> headers-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb
>
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-image-
> unsigned-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb
> 
>
> https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
> modules-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb
>
> Download them then install them simultaneously:
>
>   sudo dpkg -i *.deb
>
> When testing is done the same packages can be cleanly removed using the
> dpkg or apt commands.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1857821
>
> Title:
>   External HDMI monitor audio always reported as "unplugged"
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+subscriptions
>


** Attachment added: "Kernel v5.5-rc7 install messages .png"
   
https://bugs.launchpad.net/bugs/1857821/+attachment/5322125/+files/Kernel%20v5.5-rc7%20install%20messages%20.png

** Attachment added: "Kernel v5.5-rc7 Pulse Audio HDMI-2 Plugged in.png"
   
https://bugs.launchpad.net/bugs/1857821/+attachment/5322126/+files/Kernel%20v5.5-rc7%20Pulse%20Audio%20HDMI-2%20Plugged%20in.png

** Attachment added: "Kernel v4.4.0-171 Pulse Audio HDMI-2 Unplugged.png"
   
https://bugs.launchpad.net/bugs/1857821/+attachment/5322127/+files/Kernel%20v4.4.0-171%20Pulse%20Audio%20HDMI-2%20Unplugged.png

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Title:
  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Daniel van Vugt]

The kernel packages have no dependencies. The ones you would need for
desktop are:

https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
headers-5.5.0-050500rc7_5.5.0-050500rc7.202001192030_all.deb

https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
headers-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb

https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-image-
unsigned-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb

https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/linux-
modules-5.5.0-050500rc7-generic_5.5.0-050500rc7.202001192030_amd64.deb

Download them then install them simultaneously:

  sudo dpkg -i *.deb

When testing is done the same packages can be cleanly removed using the
dpkg or apt commands.

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Title:
  External HDMI monitor audio always reported as "unplugged"

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Re: [Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

My current kernel is a version 4 kernel
$ uname -a
Linux UX303LNB 4.4.0-171-generic #200-Ubuntu SMP Tue Dec 3 11:04:55 UTC
2019 x86_64 x86_64 x86_64 GNU/Linux

You ask me to try a version 5 kernel...

Do you think that it can work without installing loads of dependencies and
having to remove them later in case of failure?

Are there instructions as to how to install a kernel outside the normal
system update?

Thanks for your help!
Cheers,
Bob

On Tue, 21 Jan 2020 at 02:50, Daniel van Vugt 
wrote:

> Please start by testing the latest kernel version:
>
>   https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/
>
>
> ** Changed in: linux (Ubuntu)
>Status: Fix Released => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1857821
>
> Title:
>   External HDMI monitor audio always reported as "unplugged"
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+subscriptions
>

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Title:
  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Daniel van Vugt]

Please start by testing the latest kernel version:

  https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc7/


** Changed in: linux (Ubuntu)
   Status: Fix Released => Incomplete

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Title:
  External HDMI monitor audio always reported as "unplugged"

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Re: [Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

Well the workaround that I reported last suddenly stopped working today...
Sigh

I assume the change in behavior us due to some recent update...

I am at a loss as to how to get this to work..

Cheers,
Bob

On Tue, 31 Dec 2019, 10:06 Grateful Frog, 
wrote:

> Hi!
>
> Thanks for the tip.
>
> When I ran my PC on the 18.04 live OS, I noticed that by plugging the HDMI
> cable on the normal HDMI port, that HDMI*2* was indicated as *plugged*.
>
> Later when I went back to the installed 16.04, the HDMI2 port was
> indicated as unplugged (all the ports were) but it still worked correctly,
> sending sound and video to the HDMI monitor.
>
> Although odd, this works so I will wait to upgrade until I have a backup
> system available.
>
> As to trying the v5 kernels, in the past they were not compatible with my
> v4 system so I will also wait on that as well.
>
> In summary, I learned that :
>
>- the standard HDMI connector maps to port HDMI2
>- the mini display connector maps to port HDMI1
>- despite being indicated as "unplugged" in the pulseaudio volume
>control, the HDMI2 port works properly.
>
> Thank you for all your help - this is a great improvement!
>
> I hope you and all the Ubuntu team have a happy new year!
> Cheers,
> Bob
>
> On Tue, 31 Dec 2019 at 03:00, Daniel van Vugt <
> daniel.van.v...@canonical.com> wrote:
>
>> Great! Sounds like a newer kernel is all you need.
>>
>> If you can't risk upgrading then I suggest just installing the latest
>> stable kernel:
>>
>>   https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.6/
>>
>> Please try that (and run 'uname' to confirm it's active).
>>
>> ** Changed in: linux (Ubuntu)
>>Status: Incomplete => Fix Released
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1857821
>>
>> Title:
>>   External HDMI monitor audio always reported as "unplugged"
>>
>> To manage notifications about this bug go to:
>>
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+subscriptions
>>
>

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  External HDMI monitor audio always reported as "unplugged"

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Re: [Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[gratefulfrog]

Hi!

Thanks for the tip.

When I ran my PC on the 18.04 live OS, I noticed that by plugging the HDMI
cable on the normal HDMI port, that HDMI*2* was indicated as *plugged*.

Later when I went back to the installed 16.04, the HDMI2 port was indicated
as unplugged (all the ports were) but it still worked correctly, sending
sound and video to the HDMI monitor.

Although odd, this works so I will wait to upgrade until I have a backup
system available.

As to trying the v5 kernels, in the past they were not compatible with my
v4 system so I will also wait on that as well.

In summary, I learned that :

   - the standard HDMI connector maps to port HDMI2
   - the mini display connector maps to port HDMI1
   - despite being indicated as "unplugged" in the pulseaudio volume
   control, the HDMI2 port works properly.

Thank you for all your help - this is a great improvement!

I hope you and all the Ubuntu team have a happy new year!
Cheers,
Bob

On Tue, 31 Dec 2019 at 03:00, Daniel van Vugt 
wrote:

> Great! Sounds like a newer kernel is all you need.
>
> If you can't risk upgrading then I suggest just installing the latest
> stable kernel:
>
>   https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.6/
>
> Please try that (and run 'uname' to confirm it's active).
>
> ** Changed in: linux (Ubuntu)
>Status: Incomplete => Fix Released
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1857821
>
> Title:
>   External HDMI monitor audio always reported as "unplugged"
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1857821/+subscriptions
>

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  External HDMI monitor audio always reported as "unplugged"

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[Bug 1857821] Re: External HDMI monitor audio always reported as "unplugged"

[Daniel van Vugt]

Great! Sounds like a newer kernel is all you need.

If you can't risk upgrading then I suggest just installing the latest
stable kernel:

  https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.6/

Please try that (and run 'uname' to confirm it's active).

** Changed in: linux (Ubuntu)
   Status: Incomplete => Fix Released

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