Issues with Audio, please help.

[Jpayne30]

So my audio isn't working, when testing the audio filter and amp away from the pi it functions fine though there is a hiss when no sound is coming through the speakers. Once connected to the pi hiss is still there, but there is no sound output though. Outside row 3rd down *ground of filter and volume wheel*, Outside 6th down *output to low pass filter*. Any tips on where things could be going wrong? I am soooooo close to being finished, this last bug and I can attempt again at getting it all closed up!

The end of my config.txt file looks exactly like this:

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=256
overscan_scale=1
max_usb_current=1
dtoverlay=pwm-2chan,pin=18,func=2
disable_audio_dither=1

[Chedda]

Have you ran alsamixer and adjusted the sound levels?

[Jpayne30]

Have you ran alsamixer and adjusted the sound levels?

No? I don't even know what that is lol *facepalm*

[Chedda]

ssh or use a keyboard on your pi. quit retropie to use the bash prompt and type in alsamixer. use the keyboard keys to adjust the sound and verify that it is using the correct sound device and test.

[Jpayne30]

ssh or use a keyboard on your pi. quit retropie to use the bash prompt and type in alsamixer. use the keyboard keys to adjust the sound and verify that it is using the correct sound device and test.

Okay thanks I'll see if I can get any sound out of it with that this afternoon when I get off work

[Jpayne30]

@Chedda well now my hub won't recognize my keyboard. Tried both internal port and external port. Both ports let me dump games via thumb drives but neither register any presses on the keyboard. Also the teensy is reading through the hub fine.. So taking another step back I need to figure out why it stopped responding to the keyboard

[KaiKona808]

@Chedda well now my hub won't recognize my keyboard. Tried both internal port and external port. Both ports let me dump games via thumb drives but neither register any presses on the keyboard. Also the teensy is reading through the hub fine.. So taking another step back I need to figure out why it stopped responding to the keyboard

Try another keyboard. I had one for some reason just stop working and it was a wired keyboard. Popped in a Logitech bluetooth one and no issues. Try the original wired one again and nada. I think of the 5 keyboards I have only 2 work. Now I am using Helder's all-in-one pcp and not the one you are, but it is worth a quick shot to try another keyboard.

[Jpayne30]

Oh boy oh boy... So.. Audio is working perfectly, no more hiss. USB hub working wonderfully keyboards working again. Got it closed up powered it on everything going great then I notice once again my screen isnt properly displaying colors. I have the BW v7 screen. The best way I can explain the issue with the colors is where red should be showing its replaced with green. No flickering, no fading images. Everything appears perfectly fine except red isn't coming through... I am half tempted to just leave it as is and just have a miss representation of colors. But part of me wants to know why it happened because it's very strange. Any ideas out there?