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Chromecast static background noise #100

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Power on TV, input is already set to correct HDMI port used by chromecast
2. Chrome cast boots - Powered from TV USB
3. Cast a chrome tab - Static noise begins

What is the expected output? What do you see instead?
Static sound begins while casting a chrome tab, along with the regular sound 
played from the webpage. Static noise continues after tab cast is terminated. 
Static noise continues even upon muting the TV sound.

Static noise can be stopped by shuffling through the TV input to return to the 
HDMI port used by chromecast. The noise will no longer be present until 
powering down chromecast.

Powering chromecast through AC adapter will not create the static noise issue. 

Static noise is not present upon casting youtube video under the stated 
conditions (USB Power / HDMI input already selected when powering on TV).

Original issue reported on code.google.com by xal...@gmail.com on 1 Dec 2013 at 5:48

GoogleCodeExporter commented 9 years ago 
I also have had this same problem with the static upon casting a tab.  I'd like 
to add that it even happens when casting a tab without sound.  It does not 
happen with AC adapter power.  

TV is a DYNEX and USB is labeled "service port", if that helps narrow problems 
down.

Original comment by bake...@gmail.com on 17 Jan 2014 at 4:45

GoogleCodeExporter commented 9 years ago 
Thank you for your support of Chromecast.  We've just released a major update 
to the Google Cast SDK and will be closing your issue.

Take a look at http://googledevelopers.blogspot.com/ for more information.

Original comment by l...@google.com on 3 Feb 2014 at 11:32

GoogleCodeExporter commented 9 years ago 
I still have this issue and I only bought my Chromecast 3 weeks ago. This issue 
is NOT obsolete.

Original comment by deFerr...@gmail.com on 30 Sep 2014 at 8:49

GoogleCodeExporter commented 9 years ago 
hello, i have the same issue, static noise. i only ever powered my chromecast 
via provided AC adapter.  however with mine, the static ONLY comes through when 
i'm playing sounds.  i can hear the normal sound in the background, but the 
crackling and high pitched screeching is very loud.  it stops if i pause the 
media (video or music), and i have no problems viewing pictures or videos with 
no sound.

Original comment by curtma...@gmail.com on 16 Oct 2014 at 7:14

GoogleCodeExporter commented 9 years ago 
I finally solved this by interposing a 3m HDMI extension between the Chromecast 
and the TV. It needs to be a good quality cable though - a cheaper, shorter one 
did not work.  In my case the TV must be emitting a signal that interferes with 
the Chromecast, and the effect seems to occur up to 2 metres from the HDMI card 
socket.  I would respectfully suggest that Google look at the shielding on the 
device and check that any compensation / filtering of unwanted signals is 
working 100%.

Original comment by deFerr...@gmail.com on 17 Oct 2014 at 12:23

GoogleCodeExporter commented 9 years ago 
Hmm i'm going to try that.   but i've used my chromecast device with the same 
TV for just over a year with no problem at all and its only started making the 
noises a week ago.  what could have changed?

Original comment by curtma...@gmail.com on 17 Oct 2014 at 1:58

GoogleCodeExporter commented 9 years ago 
Just got the same issue here.  Really annoying..

Original comment by lordfun...@gmail.com on 26 Jan 2015 at 8:59

GoogleCodeExporter commented 9 years ago 
After careful troubleshooting I have isolated the issue to the Chromecast 
device powered via the TV usb port. The static exists irrespective of the 
signal source, however gets worse as the chromecast device heats up. Supplying 
power from an AC adapter reswolves the problem.

Original comment by vnb.333...@gmail.com on 16 Feb 2015 at 9:28

GoogleCodeExporter commented 9 years ago 
maybe we have a different issue.  i have never powered my chromecast via
usb but i still get the static

Original comment by curtma...@gmail.com on 16 Feb 2015 at 3:17

GoogleCodeExporter commented 9 years ago 
issue still exists and no solution can be found in any discussion groups.   I 
have attempted all suggestions.
- Have tried powering via AC adapter and via USB
- Have tried extension cable to move chromecast unit away from TV
- Have tried horizontal and vertical HDMI ports
- Have tried cycling through all the input ports on the TV
- Have tried updating the software on the chromecast
- Confirmed that this Chromecast unit works on a different TV
- Confirmed that HDMI port on TV works with other devices
Nothing seems to work and I continue to get snow and static when Chromecast is 
connected (regardless of whether casting or not)

Original comment by dhbo...@optonline.net on 7 Mar 2015 at 10:30

GoogleCodeExporter commented 9 years ago 
Issue 523 has been merged into this issue.

Original comment by jonathan...@google.com on 9 Mar 2015 at 8:29

GoogleCodeExporter commented 9 years ago 
I have two devices and only the latest one acquired few weeks ago has this 
popping sound issue. The old one (a year ago) doesn't have this issue. Both are 
running the same sw version.

Original comment by bcata...@gmail.com on 28 Mar 2015 at 5:58

GoogleCodeExporter commented 9 years ago 
I have the exact same problem, my chromecast fuzzes when starts from idle mode 
and eventually quiets done after watching some streams.

Original comment by andredia...@gmail.com on 12 Apr 2015 at 7:07

GoogleCodeExporter commented 9 years ago

Original comment by jonathan...@google.com on 16 Apr 2015 at 8:37

GoogleCodeExporter commented 9 years ago 
Having this issue with a Chromecast I purchased November 2014.  I can confirm 
the same as comment 10 that this happens when powered by external supply or the 
TV USB, I have tried a quality HDMI cable as well to no avail. 

It seems very much to be connected to RF noise created by the CC's wifi.  As I 
tend to notice more static and noise when it is communicating to the network 
than when it is idle.

Original comment by markfi...@initiativeassets.com on 18 Apr 2015 at 1:10

GoogleCodeExporter commented 9 years ago 
Please submit a feedback report after reproducing the issue 
(https://support.google.com/chromecast/answer/3187017?hl=en).
Make sure to prefix the report with the issue number, e.g. "Issue 100".

Original comment by jonathan...@google.com on 27 Apr 2015 at 6:13

GoogleCodeExporter commented 9 years ago 
Hi Guys I've put my chromecast in a adapter then took s-video out into TV then 
phone into amp and I've stopped the hissing background noise :-)

Original comment by loadsofd...@gmail.com on 4 May 2015 at 2:36

GoogleCodeExporter commented 9 years ago 
It appears the issue is due to interference between the Chromecast and TV. Note 
that while powering the Chromecast via the TV's USB port is supported, it is 
not recommended. It's difficult for us to identify the source of the issue 
unless we can reproduce it internally since there are many different factors 
involved.
Therefore, I recommend you visit our online forum 
(https://productforums.google.com/forum/#!forum/chromecast;context-place=topicse
arch/chromecast) for further assistance regarding this issue.

Original comment by jonathan...@google.com on 15 May 2015 at 6:09