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RPi + Other Software USB Capture flashing

Discussion in 'Software Support' started by jynx78, 11 October 2020.

  1. jynx78

    jynx78 New Member

    Messages:
    2
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    HI
    I have just installed hyperion ng 8 on a pi zero w and plugged the usb capture in. It seems that its not connecting properly and it disappears every couple of seconds. it says USB Capture: (V4L2:auto). i have played around with the settings. i have back dated it to hyperion ng 7 still the same issue. I then installed it on a pi 3b that works fine.
    Appreciate any help.
    Regards
     

    Attached Files:

  2. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3
    hello,
    maybe usb +5 v power is too low on the usb port of Zero.

    put this in >>
    max_usb_current=1
    arm_freq=xxx between 700 and 1000 Mhz
    force_turbo=1

    line in the config.txt file
     
    Last edited: 11 October 2020
  3. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3
  4. jynx78

    jynx78 New Member

    Messages:
    2
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    HI
    Thanks for the info. I tried this at 800 and 900 mhz still no difference. I have now got it to recognise the capture.
     

    Attached Files:

  5. john33

    john33 New Member

    Messages:
    16
    Hardware:
    RPi1/Zero, +Arduino
    I have a similair issue,

    I had the whole setup working:
    Pi zero w
    Hyperbian alpa9
    Ws2812b led strip (58 leds total)
    Working uvtf007 grabber.

    But every 1 tot 1,5 seconds the image switches from grabber image to a pi SSH image.
    Also the leds react because there is a fairly black image (pi screen) and a video feed.

    I thought this was a power issue.
    Leds have there own supply,
    Pi has its own supply.
    Grabber goes into the pi' s USB .

    Yesterday i used an usb hub, and powered the pi and the grabber from there, and also connected power to the pi ' usb connector.
    There is where the things went wrong.
    The pi works, but didn't see the grabber.
    Then the leds stopped working, first strange patterns, then no reaction tot the colorwheel.
    In the liveview of Hyperion the led effects were perfectly visible.
    Looks like gpio 18 is dead....
     
  6. mathman

    mathman New Member

    Messages:
    4
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    Sale issue for me.

    Someone have test overcloking?
     
  7. john33

    john33 New Member

    Messages:
    16
    Hardware:
    RPi1/Zero, +Arduino
    I solved the problem.

    The flickering issue was that the resolution was set to high in my config.

    I have tested the utvf grabber on my windows laptop, and it works, but, the picture format in VLC media player was very small.
    And there it came to me, reduce the resolution to 355 by ??, Anyway very low.
    That did the trick for me.
    The pi zero can feed the grabber with enough power, try reduce the resolution.
     
  8. john33

    john33 New Member

    Messages:
    16
    Hardware:
    RPi1/Zero, +Arduino
    Also, hyperbian and gpio18 wants to have root access.
    What i mean is that in order to get the led's tot work the system needs root rights to get things going.
     
  9. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3
    has to work like this,

    Sudo nano /etc/ssh/sshd-config

    search for
    #permitRootLogin prohibit password

    change to
    PermitRootLogin no

    save, and exit.
     
  10. john33

    john33 New Member

    Messages:
    16
    Hardware:
    RPi1/Zero, +Arduino
    Permitrootlogin YES

    this ebables root rights to the user, at least, this works for me.
     
    • Like Like x 1
  11. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3
    ah :) then my forumfriend told me wrong because he had to do it to. I don't have Hyperbian so didn't have to do this procedure.

    but it works now ?
     
  12. john33

    john33 New Member

    Messages:
    16
    Hardware:
    RPi1/Zero, +Arduino
    Jeroen, i was the one who told you about some systems need root permissions, my setup works now.

    But if there are problems the utvF grabber (note the F) then try to start with a very low resolution and then increase the resolution to a point that it is stil stable.
     
  13. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3

    in the Dutch section :)


    yes i know this, some grabbers are really bad> for instance i have a grabber here that is recognized by the OS and gives you a videoimage, but the quality is really bad even when i set it to 1 [no decimation almost] picture is still horrible.

    then with the same RCA converter [HDMI to RCA] and a diffrent grabber the picture is really good even when i set decimation to 4


    so it matters what type of brand (chipset) is used in the grabber.
    the one that gives a horrible picture is 2 times more expensive then my cheap one with perfect clean picture :eek:
     
  14. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    356
    Hardware:
    RPi3
    i have this ones that after a year does the job perfectly.
    Also i experimented with a HDMIgrabber but wasn't a great succes...
    gear.jpg