No Signal - USB Grabber Keeps Losing Signal

[Johnson145]

First of all, awesome project, thank you very much!

My problem: Initially, everything is working fine. However, after a while I always end up with the live preview showing only the "No Signal" screen of HyperHDR. Toggling only the USB grabber does not fix it. Toggling all components does work though.

Relevant logs in HyperHDR seem to be limited to Frame too small: 0 != xy.

dmesg mainly yields Non-zero status (-71) in video completion handler. and Failed to resubmit video URB (-1). Full dmesg log:

Details

``` [19336.467436] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [109517.624613] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [114011.419152] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [115846.444348] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [115846.444408] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [115846.444433] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [160796.964405] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [180543.012743] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [182116.609091] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [182116.609142] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [182116.609163] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [182116.609191] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [184067.472579] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [189741.225434] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [199358.313443] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [226487.412191] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [234730.016974] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [240141.084327] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [246527.394486] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [247875.239141] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [249659.185517] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [260808.978373] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [261810.526250] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [264822.095779] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [269130.219317] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [274753.802442] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [282477.238335] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [322209.663711] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [343700.935392] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [345270.822271] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [349657.159536] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [352122.379105] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [352122.379158] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [352122.380234] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [356853.172614] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [360538.619533] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [369669.011039] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [399315.269685] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [431091.753864] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [438333.508891] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [438412.005832] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [445128.020722] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [455234.387115] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [455234.387161] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [455234.387186] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [455703.671847] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [486669.629393] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [495593.034372] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [495593.034439] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [496015.530645] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [498643.346488] usb 2-2: USB disconnect, device number 2 [498643.351709] usb 2-2:1.1: Failed to set UVC probe control : -108 (exp. 34). [498646.582834] usb 2-2: new SuperSpeed USB device number 3 using xhci_hcd [498646.603235] usb 2-2: LPM exit latency is zeroed, disabling LPM. [498646.633908] usb 2-2: config 1 has an invalid interface number: 7 but max is 4 [498646.633914] usb 2-2: config 1 has no interface number 4 [498646.634678] usb 2-2: New USB device found, idVendor=3188, idProduct=1000, bcdDevice= 1.00 [498646.634685] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [498646.634689] usb 2-2: Product: UGREEN 25173 [498646.634693] usb 2-2: Manufacturer: ITE [498646.634696] usb 2-2: SerialNumber: 00000001 [498646.646637] usb 2-2: Found UVC 1.10 device UGREEN 25173 (3188:1000) [498646.681451] hid-generic 0003:3188:1000.0002: hiddev96,hidraw0: USB HID v1.11 Device [ITE UGREEN 25173] on usb-0000:01:00.0-2/input7 [507621.920682] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [528337.505930] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [533283.321838] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [534903.497365] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [534964.164974] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [534964.164974] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [534964.165011] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [534964.165013] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [534979.791905] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [538707.541584] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [543681.504242] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [547721.381797] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [572880.252447] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [572907.766338] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [585164.349611] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [585174.185585] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [601767.780275] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [601880.343473] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [601880.343509] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [601880.343531] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [601880.343558] uvcvideo 2-2:1.1: Failed to resubmit video URB (-1). [631881.608470] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [664728.358702] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [674006.464282] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [674766.450773] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [675634.755347] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [675743.120094] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. [675940.405725] uvcvideo 2-2:1.1: Non-zero status (-71) in video completion handler. ```

My setup:

• Raspberry Pi 4 with original power supply
• UGREEN 25173 grabber (tried MS2130 before)
• EZ-SP12H21
• WLED via Ethernet
• HyperHDR v21 (tried v22 beta, too)

I've already searched through existing discussions. Most often, an insufficient power supply is assumed. However, I'm already using the official PSU for the Pi. As far as I understand, the Pi4 may still have problems providing full power via USB. I don't understand if/how I can workaround this. Many people are using this hardware, so there must be a way, right?

I've reduced video capturing settings to 1280x720 (minimum for P010) 30 frames and quarter of frame mode to reduce load as much as possible.

I've updated the eeprom to the latest version, too.

I've play around with a different usb grabber, a different HyperHDR version and video capturing settings for Auto resume and Automatic signal detection.

I'm desperately looking for a fix, but have no clue how to continue. Any help is appreciated very much!

[awawa-dev]

Hi
I use Ugreen 25173 with Rpi4 almost every day without problem - I only have different certificated USB cable that I have from the previous setup. Any other devices powered by Rpi 4? Even with the official power supply rpi 4 output is limited, but in my case it works fine with the grabber and the esp32 board. If even ms2130 connected directly to USB3.0 port fails to work properly then something definitely is broken. To eliminate problem with kernel flash the latest OS from RPi (or use this: https://github.com/awawa-dev/P010_for_V4L2/actions/runs/19396333233)
Edit: and Frame too small: error is not critical, what is important what happens next. But the logs are missing...Suggest to disable Automatic signal detection as it can mask some issues with the video source.

[Johnson145]

I have at least a second variant of this problem: sometimes I only see the No signal screen of the grabber itself (yellow font with additional Chinese characters) instead of the one with the HyperHDR logo. Same behavior. Restarting all components yields the correct image again.

[awawa-dev]

It is a system (kernel) or hardware problem (broken unit, bad or too long usb cables, insufficient power supply etc), even without a video signal this ugreen grabber should not disappear from the OS. In such situation it displays green (not yellow at least when HDR tone mapping is enabled and correctly calibrated) text: no signal. But it's still a valid video stream.

[Johnson145]

If I'm lucky, it was the HDMI cable which came with the Ugreen grabber. I've replaced it with a new certified one and haven't experienced any troubles since then.

Hopefully not just a coincidence and it stays that way.

[Johnson145]

it displays green (not yellow at least when HDR tone mapping is enabled and correctly calibrated) text: no signal

Just double checked: it's yellow for me. HDR is enabled and calibrated.

[awawa-dev]

Well, mine is yellow only when tone mapping is off an green if on in P010. LUT P010 available in the download section in GUI. But if it works fine for you then it's OK. I once had a case with the AV ACCESS 4KVC00 and its included long USB cable because sometimes grabber wouldn't work properly with it causing error 19/grabber disappears from the OS for few seconds .

[frofro64546]

hello , i had a very similar setup and experienced the same problem ( though still using MS2130 and no WLED ) . it turned out to be apperently a handshake problem between EZ-SP12H21 and my TV ( no matter if EDID was copied or fixed to 4K60 ) . reverting back to EZ-SP12H2 solved it .
if you have another splitter on hand i would give it a try and see if your problem can be narrowed to the splitter too

[Johnson145]

Thanks for your response!

That's interesting. I thought that the connection to the TV is not relevant, because the grabber is connected to the splitter independently of the TV, isn't it?

Could be worth a try though. Unfortunately, i don't have another separate splitter. If I understand correctly, I could try using only the UGREEN for both jobs (without HDCP at least).

You have been using the same cables for both setups?

Which TV do you have? LG OLED xy, too?

[frofro64546]

same cables all along , old samsung 4K60 HDR TV . all sources going through an AVR , then to splitter , out1 to tv , out2 to grabber . i noticed very long waiting times between 2 sources ( 1 being HDR , the other not ) , TV " recovered " after 10 seconds , grabber never went out of " no signal " . all of that was gone after " downgrading " to SP12H2 again