Discussion:
[ubuntu-studio-users] HDMI problems with Popcorn Time
Anderson
2015-06-10 08:59:01 UTC
Permalink
I get audio noise when watching PopCorn Time on my TV connected to my
laptop on HDMI.

The same doesn't happen when using Popcorn Time through HDMI in Windows in
the same computer.

It's also no problem to watch YouTube, for example, even in Linux through
HDMI.

Speakers and earphones work fine. I only get problems with HDMI in Linux
and in Popcorn Time.

Has anyone had similar problems? Any suggestions?

I'm using Ubuntu Studio 14.04.2 LTS.

Thanks in advance!
Mike Holstein
2015-06-10 14:36:01 UTC
Permalink
Post by Anderson
I get audio noise when watching PopCorn Time on my TV connected to my
laptop on HDMI.
The same doesn't happen when using Popcorn Time through HDMI in Windows in
the same computer.
It's also no problem to watch YouTube, for example, even in Linux through
HDMI.
Speakers and earphones work fine. I only get problems with HDMI in Linux
and in Popcorn Time.
Has anyone had similar problems? Any suggestions?
I'm using Ubuntu Studio 14.04.2 LTS.
Thanks in advance!
one would think that a "buzz" or "hum" would be from actual hardware
connections, and not have much to do with the software/drivers.. so, what i
might do is, get the noise happening, via hdmi, then, i would open
alsamixer, and enable *all* controls, and try tweaking settings there,
thinking that, maybe a loop is being created somehow, where, a noise is
being introduced, though, i think that is not likely. it could be as simple
as the device not providing good linux support. what i might do is simply
check for, and apply any updates available, then, i would try different
live iso's. live iso's allow an easy way to try hardware with different
kernels/drivers and alsa versions. i would unplug everything but the HDMI
from the machine, and test.. and also, consider recording it, so that a
volunteer could try and identify the sound as a ground loop, or a hard
drive/fan noise, etc.. cheers
Post by Anderson
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MH

likethecow.com
Anderson
2015-06-28 09:56:05 UTC
Permalink
Hi!

Thanks for the help!

I tried changing settings with alsamixer but that didn't help.
It's very weird. It only happens in popcorn time and only in Linux.
Everything else works fine. I also checked Pulse, but couldn't do much
there either.

The only solution I found was to choose to play the movies on VLC instead
of Popcorn time. This way it works fine.
Post by Mike Holstein
Post by Anderson
I get audio noise when watching PopCorn Time on my TV connected to my
laptop on HDMI.
The same doesn't happen when using Popcorn Time through HDMI in Windows
in the same computer.
It's also no problem to watch YouTube, for example, even in Linux through
HDMI.
Speakers and earphones work fine. I only get problems with HDMI in Linux
and in Popcorn Time.
Has anyone had similar problems? Any suggestions?
I'm using Ubuntu Studio 14.04.2 LTS.
Thanks in advance!
one would think that a "buzz" or "hum" would be from actual hardware
connections, and not have much to do with the software/drivers.. so, what i
might do is, get the noise happening, via hdmi, then, i would open
alsamixer, and enable *all* controls, and try tweaking settings there,
thinking that, maybe a loop is being created somehow, where, a noise is
being introduced, though, i think that is not likely. it could be as simple
as the device not providing good linux support. what i might do is simply
check for, and apply any updates available, then, i would try different
live iso's. live iso's allow an easy way to try hardware with different
kernels/drivers and alsa versions. i would unplug everything but the HDMI
from the machine, and test.. and also, consider recording it, so that a
volunteer could try and identify the sound as a ground loop, or a hard
drive/fan noise, etc.. cheers
Post by Anderson
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
MH
likethecow.com
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Mike Holstein
2015-06-28 20:04:16 UTC
Permalink
Post by Anderson
Hi!
Thanks for the help!
I tried changing settings with alsamixer but that didn't help.
It's very weird. It only happens in popcorn time and only in Linux.
Everything else works fine. I also checked Pulse, but couldn't do much
there either.
The only solution I found was to choose to play the movies on VLC instead
of Popcorn time. This way it works fine.
this happens only over HDMI? have you asked popcorn time support? since its
not an ubuntu package, you may find "better" help finding an ubuntu user,
in the main ubuntu support venues, with your specific hardware using
popcorn time.
Post by Anderson
Post by Mike Holstein
Post by Anderson
I get audio noise when watching PopCorn Time on my TV connected to my
laptop on HDMI.
The same doesn't happen when using Popcorn Time through HDMI in Windows
in the same computer.
It's also no problem to watch YouTube, for example, even in Linux
through HDMI.
Speakers and earphones work fine. I only get problems with HDMI in Linux
and in Popcorn Time.
Has anyone had similar problems? Any suggestions?
I'm using Ubuntu Studio 14.04.2 LTS.
Thanks in advance!
one would think that a "buzz" or "hum" would be from actual hardware
connections, and not have much to do with the software/drivers.. so, what i
might do is, get the noise happening, via hdmi, then, i would open
alsamixer, and enable *all* controls, and try tweaking settings there,
thinking that, maybe a loop is being created somehow, where, a noise is
being introduced, though, i think that is not likely. it could be as simple
as the device not providing good linux support. what i might do is simply
check for, and apply any updates available, then, i would try different
live iso's. live iso's allow an easy way to try hardware with different
kernels/drivers and alsa versions. i would unplug everything but the HDMI
from the machine, and test.. and also, consider recording it, so that a
volunteer could try and identify the sound as a ground loop, or a hard
drive/fan noise, etc.. cheers
Post by Anderson
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
MH
likethecow.com
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
MH

likethecow.com
Anderson
2015-06-29 05:32:36 UTC
Permalink
Only in popcorn time. Only in Linux. Only in HDMI.

I didnt think about checking with them. I'll do that. Thanks!
Post by Mike Holstein
Post by Anderson
Hi!
Thanks for the help!
I tried changing settings with alsamixer but that didn't help.
It's very weird. It only happens in popcorn time and only in Linux.
Everything else works fine. I also checked Pulse, but couldn't do much
there either.
The only solution I found was to choose to play the movies on VLC instead
of Popcorn time. This way it works fine.
this happens only over HDMI? have you asked popcorn time support? since
its not an ubuntu package, you may find "better" help finding an ubuntu
user, in the main ubuntu support venues, with your specific hardware using
popcorn time.
Post by Anderson
Post by Mike Holstein
Post by Anderson
I get audio noise when watching PopCorn Time on my TV connected to my
laptop on HDMI.
The same doesn't happen when using Popcorn Time through HDMI in Windows
in the same computer.
It's also no problem to watch YouTube, for example, even in Linux
through HDMI.
Speakers and earphones work fine. I only get problems with HDMI in
Linux and in Popcorn Time.
Has anyone had similar problems? Any suggestions?
I'm using Ubuntu Studio 14.04.2 LTS.
Thanks in advance!
one would think that a "buzz" or "hum" would be from actual hardware
connections, and not have much to do with the software/drivers.. so, what i
might do is, get the noise happening, via hdmi, then, i would open
alsamixer, and enable *all* controls, and try tweaking settings there,
thinking that, maybe a loop is being created somehow, where, a noise is
being introduced, though, i think that is not likely. it could be as simple
as the device not providing good linux support. what i might do is simply
check for, and apply any updates available, then, i would try different
live iso's. live iso's allow an easy way to try hardware with different
kernels/drivers and alsa versions. i would unplug everything but the HDMI
from the machine, and test.. and also, consider recording it, so that a
volunteer could try and identify the sound as a ground loop, or a hard
drive/fan noise, etc.. cheers
Post by Anderson
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
MH
likethecow.com
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
--
MH
likethecow.com
--
ubuntu-studio-users mailing list
https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
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