Develop Bugs

Type-c earphones with no audio

Hi, I picked up a pair of type-c earphones from AliExpress for my Mi A1 which is running Pie with the March update. However, my phone doesn't detect them and no audio is sent to them either. Any ideas?

Not all TypeC speaker/earphone devices are the same. I also tried that with a friend's TypeC earphones and it didnt work. I attached a USB DAC Dragonfly Red via an OTG adapter (Type C Malr to Type A Female) and I got audio out from it.
It seems you'll need a type C headphones that has a built in USB DAC or use a USB DAC in-between like I did.
Some type C earphone are just wired to take advantage of the additional wires in USB3 TypeC and so the phones output the analog audoo through these additional lines. This also makes them incompatible with other brands too. Meanwhile, the A1 has a USB2 TypeC and so also only has the 4-5 lines of microUSB B.
Bottomline: use the 3.5mm audio out of the phone or use a USB DAC to output audio thru USB TypeC.

[Issue] USB C to Audio Output

I grabbed a two pack of some dongles to convert Type C to audio, they work for standard iPhone headphones, but not if I plug in an aux cord . The phone recognizes it as headphones attached but no sound every comes out.
Any idea how to fix/have you guys used any brands successfully with aux cords?

Same problem for me.
Any helps?
Thanks

Does the dongle have a built in dac? If not try unplugging the dongle, go to settings, enable otg storage, then plug in the dongle. I need to do that for my dongle

Question Car aux cable recognizes as a USB on phone

Hey so I've got a problem where I wanna connect my aux cable via a dongle to my phone, and all I get is a message ''Unsupported USB device''. I tried the USB sourcing thing in the dev options but no luck still. It worked on a Xiaomi with a dongle with no issues, could it be that I have to have the actual Samsung dongle?

Hmm, i also use a aux cable via dongle in my car, and it works without any problems.
It is not a Samsung dongle though.
Looks like the DAC which is in the dongle needs to be recognized by the phone as an audio device...

While Xiaomi phones support dongles without a DAC, Samsung phones only support ones with a DAC inside.
So, the phone needs a dongle with a DAC to output to your car,
The dongle Xiaomi includes with their phones does not have a DAC inside of it.

Makes sense. Xiaomy obviously stil has DAC inside the phone, meanwhile samsung doesn't which means that you need it inside the dongle.

JVC fs-g5 to fire tv

I have a JVC fs-g5 stereo set and want to connect it to my insignia fire tv. However the only ways to connect to a device is through a USB B port and a aux port. Is there anyway to connect them to my tv since it didn't work when I plugged it into the usb slot.

Does the stereo have the aux port?
Connect the headphone port on the TV to the aux port on the stereo?

No audio via USB-C

Hello,
I'm running LineageOS 20 (lineage-20.0-20230611-nightly-FP4-signed) on my Fairphone 4, and I have no idea why I can't get any audio via USB-C.
Could someone help me figure out which settings I need to tweak to fix this issue?
I've tested 5 different USB-C solutions and none have worked:
USB-C to USB-C + 3.5mm splitter
USB-C charges fine, audio plays on device instead of via 3.5mm
Generic USB-C to HDMI adapter
Video plays fine, audio plays on device instead of TV or PC monitor speakers
Anker USB-C to HDMI adapter
Video plays fine, audio plays on device instead of TV or PC monitor speakers
USB-C to DisplayPort cable
Video plays fine, audio plays on device instead of PC monitor speakers
PC monitor with USB-C connection
Video plays fine, audio plays on device instead of PC monitor speakers
All of these cables and adapters work fine on my other devices, 3 of them are used daily, except the Generic USB-C to HDMI adapter which my laptop doesn't seem to like (but it works on the Fairphone!).
Thank you for your time.