Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Rainbow lights when standalone hyperion has no signal from USB grabber #92

Closed
HyperFann opened this issue Apr 24, 2014 · 25 comments

Comments

Projects
None yet
10 participants
@HyperFann
Copy link

commented Apr 24, 2014

Hi guys, first of all I want to say that you did and still do a wonderfull job with this beautiful project.

I post here an issue I have when for example, I finished to play with my PS3 and shut it down. All the LEDs turn statics with different color by group of 3 or 4 leds, yellow, blue, green, purple, red, blue and so on but only on my horizontal strip. Vertical strip are all green/white. I would like to tell hyperion to put the led black when the USB grabber has no signal. Is this possible ?

I use a USB grabber DC60 with a STK1160 chip.

thanks in advance for you help

@poljvd

This comment has been minimized.

Copy link
Collaborator

commented Apr 24, 2014

The question is where does the rainbow come from?

  • Is it the no-signal-image from your grabber? You can test this by using the --screenshot option of hyperion-v4l2 to grab a signle image and check its contents.
  • Is it from another source? Do you still have the RPi grabber enabled and shows the RPi the rainbow screen?
@HyperFann

This comment has been minimized.

Copy link
Author

commented Apr 25, 2014

thanks for your answer poljvd. I tried to grab the image with hyperion-v4l2 --screenshot but I never saw any png in my home folder. I'm pretty sure that I do still have RPi grabber enabled because I never heard how to disable it. Is it the Hyperionc grabber 64x64 ?

I just broke my USB grabber, I will receive a new one in 1 or 2 weeks. I'll post back when I get it.

Sorry for my english.

@poljvd

This comment has been minimized.

Copy link
Collaborator

commented Apr 25, 2014

The grabber does not need to be disabled, but I assumed you are not running XBMC (I may be wrong here) and in that case the grabber is not very useful and can cause leds lighting up when you don't expect it. The grabber can be disabled in the config tool or by removing the configuration block from the config file.

The --screenshot option should create a PNG in the working directory when an image is sucessfully captured from the device...

@Fabi1080

This comment has been minimized.

Copy link

commented May 18, 2014

I have the same issue. The problem is the image the grabber produces when there is no signal:
screenshotntsc

Is there any way to configure the grabbers behaviour for no signal outputs?

@MarcDahlem

This comment has been minimized.

Copy link

commented May 18, 2014

@Fabi1080 As far as I know is that picture produced by your HDMI2AV-converter and not by the grabber itself. Try it out what the signal is like, if the HDMI2AV is not connected. Or, even better, connect the yellow video out from the converter to your tv.

If I'm wrong and it is produced by the grabber, you can try to set the bars option of the driver to FALSE:

sudo sh -c "echo 'options easycap bars=0' >> /etc/modprobe.d/easycap.conf"

and reload the driver with (or just restart your pi)

sudo rmmod easycap && sudo modprobe easycap
@HyperFann

This comment has been minimized.

Copy link
Author

commented May 18, 2014

@Fabi1080 it's exactly the same image I get too !

@MarcDahlem I've try your 'code' and the bars still there. Maybe because my grabber is a fushicai ?

Can someone tell me why my HDMI2AV only work at PAL ? When I put to NTSC, my led shut down even if i'm in CANADA. I would like to grab to NTSC if possible. thanks in advance.

@MarcDahlem

This comment has been minimized.

Copy link

commented May 19, 2014

@HyperFann:

  1. Did you try removing/unplugging the HDMI2AV from your grabber? Do you see then also this image?
  2. If you switch your HDMI2AV from PAL to NTSC, you have also to update your hyperion-v4l2 config/ mplayer command respectively.
@HyperFann

This comment has been minimized.

Copy link
Author

commented May 19, 2014

@MarcDahlem

  1. Yes, I've try, and no, I don't see the image anymore. You are right the image came from HDMI2AV
  2. I will try, thanks for the hint.
@Fabi1080

This comment has been minimized.

Copy link

commented May 19, 2014

You were right. The "Rainbow" Image is produced by the hdmi2av converter. The grabber itself produces black to white bars. But disabling these would not solve the problem.

@EvilBoris

This comment has been minimized.

Copy link

commented Jun 12, 2014

Is there any way around the coloured bars? Some way I can it to stop displaying? I've got the HDMI2AV adapter that is shipping with the lightberry.

@Fabi1080

This comment has been minimized.

Copy link

commented Jun 13, 2014

It seems like other HDMI2AV converters don't have this "feature". What we need now is a save source where to buy one which produces a black image.

@EvilBoris

This comment has been minimized.

Copy link

commented Jun 14, 2014

I've ordered one from amazon and should have it later

@MarcDahlem

This comment has been minimized.

Copy link

commented Jun 15, 2014

Mine was shipped directly from Amazon (Germany). I've no colored image with it...

@EvilBoris

This comment has been minimized.

Copy link

commented Jun 16, 2014

@Fabi1080

This comment has been minimized.

Copy link

commented Jun 18, 2014

@MarcDahlem could you post a link to yours? I've tested this one: http://www.amazon.de/gp/product/B00BUQOQCG
and it is even worse. It needs a powersupply attached. The old one doesn't. The PAL and NTSC switch is labeled wrong and if there is no source, it switches the rainbow signal to a really ugly black and blue blocky image. So the leds switch on and off every second... 👎

I've attached both to my TV an saw that the old one is putting out an 1280x720 image. I didn't even know this was passible. Does the grabber also get this image?

@MarcDahlem

This comment has been minimized.

Copy link

commented Jun 19, 2014

@Fabi1080 that's exactly the one I bought and it is working without any problems. But I've chosen a shop who shipped directly with amazon ('Versand durch Amazon')!

@RandomNinjaAtk

This comment has been minimized.

Copy link

commented Aug 7, 2014

Okay, I was experiencing this issue and solved it by finding an HDMI2AV converter that outputs a solid color blue signal with no video.

Buy this one: http://www.amazon.com/gp/product/B008FO7PQA/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

I have confirmed it works as of this morning, only took me 3 attempts to find the right one!

@nrosier

This comment has been minimized.

Copy link

commented Mar 9, 2015

I've also ran into this issue. We really need a reliable source for HDMI2AV convertors that do not display the rainbow bars when no signal is detected. For now I just unplug the power of the convertor but that is not a long-term solution.

@brindosch

This comment has been minimized.

Copy link
Member

commented Mar 7, 2016

I will close this, due to converter fault and age.

@brindosch brindosch closed this Mar 7, 2016

@phisch

This comment has been minimized.

Copy link

commented May 21, 2016

Actually i would like to see this re-opened again. A functionality to detect a no-signal image would be usefull.

@nrosier

This comment has been minimized.

Copy link

commented May 23, 2016

I agree. Unless someone can provide a store (which ships to BE or EU) where I can buy a good convertor (100% garantee not do display rainbow colours). I currently have 4 which are all bad (i.e. rainbow).

@brindosch

This comment has been minimized.

Copy link
Member

commented May 23, 2016

And how determine you a no-signal image? I don´t know how many color variants and steps are created out there. When you say you see rainbow colors, this is also on your grabbed picture right?

The main problem is: v4l2 shuts down if you have no signal. The hdmi to cvbs converter outputs weird stuff all time. So v4l2 never shuts down.

@pelrol

This comment has been minimized.

Copy link

commented Aug 9, 2016

Would it be possible to provide a "no signal" screenshot to be able to do a comparison ?

@brindosch

This comment has been minimized.

@nrosier

This comment has been minimized.

Copy link

commented Aug 20, 2016

I found what might be a good solution (after having bought 3 "white" HDMI2AV convertors). Either get the HDMI full HD kit from Lightberry (which is a nice all-in-one solution so handy if you haven't bought a splitter and grabber yet) or try and find the 4K convertor they use in their 4K kit. I found 1 on ebay and it works like a charm. No more rainbow colour lights for me.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.