Cant get ws2812b lights to light up

Hi

Couple of weeks ago, my setup stopped working. (lights stopped lighting) Here is what that looks like

- raspberry pi 3b running hyperbian 2.0.14

- usb video capture card

- ws2812b lights connected to the rpi using gpio pin 18 (it was setup in hyperion as the rpi wpm ws281x controller) and the ground pin

- both light strip and raspberry are connected to the same 5V-10A 50W power source

- i had enabled root using (sudo updateHyperionUser -u root )

everything was working fine but stopped working around 2 weeks ago. So today i checked it out and couldnt find out why it wasnt working. I decided to do a fresh setup using 2.0.15 of hyperbian. However, i still cannot get the lights to light up. here is what i have tried so far:

- checked voltage on the light strip using a multimeter -> looks good, the stip is getting 5v

- checked the voltage on the gpio 18 pin -> also looks good measuring around 22v

- enabled root on 2.0.15 using the same command as above

I have attached my log but the only error i see is (ERROR) Lock/unlock handler- Session bus is not connected

for which i tried chmod 1777 /run/lock based on lord grey's response in this thread (<ERROR> Lock/unlock handler- Session bus is not connected) -> however that didnt help either

any help would be appreciated. thanks so much

^{Thanks pclin and kritishah}

^{yes i have wired the WS2812B led strip to the Ground Pin and GPIO 18 pins similar to this image}

^{and then i have wired the raspberry pi microusb to the same power source as the led strip.}

^{Using a multimeter, i checked that at variolus points through the strip, it is receiving 5V of power}

^{and i also checked the voltager on GPIO pin 18 from the raspberry pi which was reading approx 22V.}

^{There are no lights in the strip at all. not even if i do the effects. is there another simple way for me to test out the LED strip? Should i not have the pi and the lights hooked up to the same power source?}

^{Thanks again}

Also not sure if this matters but i noticed this error in the log when restarting it earlier. I dont think it impacts anyting but just thought i would add that to this thread

2023-04-05T18:26:00.362Z [SMOOTHING|First LED Hardware instance] (DEBUG) (LinearColorSmoothing.cpp:700:selectConfig()) [0] - Type: Linear, Pause: false, Settling time: 150ms, Interval: 40ms (25Hz), delay: 0 frames
2023-04-05T18:26:00.363Z [HYPERION|First LED Hardware instance] (DEBUG) (BGEffectHandler.h:115:handlePriorityUpdate()) Stop background (color-) effect as it moved out of scope
2023-04-05T18:26:00.452Z [EFFECTENGINE|First LED Hardware instance] (INFO) Effect [Warm mood blobs] finished
2023-04-05T18:26:00.595Z [DB] (ERROR) Failed to get records: '*' in table: 'instances' Error: 
2023-04-05T18:26:00.597Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:359:updatePriorities()) Removed source priority 254
2023-04-05T18:26:01.418Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:293:setInputImage()) Priority 240 is now inactive
2023-04-05T18:26:01.418Z [MUXER|First LED Hardware instance] (DEBUG) (PriorityMuxer.cpp:422:updatePriorities()) Set visible priority to 255

So I got this working. Turns out the GPIO 18 pin on my raspberry was busted. I switched to GPIO 12 and everything started working again. Thanks all for the help