[LeEco Le Pro3 Questions & Answers] sk8223:
Hey all. I'm a new LeEco Pro3 user, and I've noticed a weird issue: audio output through headphones will stop working after a few hours of not using it.

Basically, you can connect your headphone adapter with your headphones plugged in, play an audio file, and it will play through the speakers instead of through your headphones. Unplugging and replugging doesn't fix it. Raising or lowering the volume doesn't fix it. It cannot play audio through the headphones unless you reboot the phone.

I don't know what triggers it. All I know is, when this issue pops up, the the "Sounds and Vibration" sections of the Settings app crashes. When you try to enter it, you'll go to a black screen. Which is very, very weird. Could it be due to the USB-C audio driver crashing? What could cause it to crash?

The only solution is rebooting the phone. I really don't want to do that every time it crashes, as it has crashed on me 3 times so far in the past few weeks. :/ It actually started the second week I received the phone. I hadn't listened to music in a while, so I went to connect my headphones, and... lo and behold, it refused to play audio through the headphones no matter what I did. But the first time the issue occurred, I didn't bother going into the Settings app, which was stupid of me. I should have checked to see if the Settings app's Sound section crashed on me or not.

I have Dolby Atmos disabled, though CDLA headphones show up as "enabled" in the Sound section, but grayed out, so I can't disable that option. Dunno why. I have the stock equalizer disabled in Settings, and I don't use an equalizer in my music app. Maybe the CDLA option is causing audio to crash...?

I'm running 6.0.1 on the Banggood vendor ROM. No issues on the ROM, other than this audio issue. I don't even know if it's a software issue or not, could be a hardware issue, or an issue with the USB-C standard itself. After all, even the Pixel and the iPhone 7 have this issue and similar issues. I checked Apple's forums and some people are complaining that the Lightning adapter doesn't always work, or cuts out, and only unplugging and replugging it, or rebooting the phone fixed headphone audio. As for the Pixel, apparently some Pixels didn't charge until they were rebooted. But a software update fixed this(?)

I even saw a similar issue affecting the LeEco Pro3, same as the Pixel--some Pro3s won't charge unless they're rebooting, and someone on here mentioned a kernel fix for it. Something about a USB-C controller going haywire. But that fix is only for the x720, and I have the x722. I haven't had any charging issues so far, just headphone issues. Keeping my fingers crossed.

I'm thinking this is one of 3 things:

-Software issue with the ROM I'm running, or a kernel issue

-Issue with the dongle itself (I'm using the one I got in the box; i.e. the legit one)

-Issue with the USB-C port (could be loose, could be damaged; I cleaned it out, it's perfectly clean)

I'm leaning towards a software issue, if only because the "Sounds and Vibration" setting crashes when the issue occurs. If it was a hardware issue, surely the ROM would behave normally. Then again, what do I know, I'm no dev!

Anyone else having audio issues with their Pro3? I don't want to switch to Bluetooth because I have perfectly good headphones already, plus I would hate having another thing around to charge.

I'll try to take a video of the issue once it occurs again, but weirdly enough, it only happens when I'm preparing to leave for work. Hasn't happened to me at home once. I just don't get it.