Database Develop

[Q] HDMI Dock digital audio out

Just bought the dock thing and tried to put it to work with the HDMI out on a philips HD tv, and it happens that there is no audio at all. I know the analog speakers are disabled when the HDMI is working, the audio provided by the HDMI is really not working.
I have no clue of what is happenning. I am getting just the image fom the tab but no audio at all.
I hope someone knows what is going on and help me.
I'd really appreciate the help.
tks.

Hi. The problem seems to be application dependent. When I use RockPlayer and VitalPlayer digotal audio is there through a docking station. Other players including stock one output just analog audio. Regards. K
Sent from my GT-P1000 using Tapatalk

Tks mate but when I used the rock player I am still getting no sound at all. Its not just the rock player but even the native one or any music player. The sound isn't passing through the hdmi cable.
Sent from my GT-P1000L using XDA App

I will conect the tab to the TV set in few minutes to double check my findings once more. Btw I use the latest firmware MCD. Regards K
Sent from my GT-P1000 using Tapatalk

Actually, I can now confirm that I have digital audio output from the docking station with any of the mwdia players including the stock one. When initially started, all the players mute the audio when the tab is in the station. Pls volume up through hardware keys and you will have the audio output. Regards K
Sent from my GT-P1000 using Tapatalk

The volume is up when plugin to the dock and yet I get no sound changed the volume up and down but no answer. Have two Philips televisions and different models here and on both I get the same issue, no digital sound. The analog sound is fine when plugin the av cables. Now I wonder if the hdmi cable isn't working or is the tv that doesn't like the dock.
Sent from my GT-P1000L using XDA App

Can you post the details of the cable including it's version number. It may be you have an incorrect cable.

About the cable: e324540 awm style 20276 80°c 30v vw-1 hdmi 1.3 cable hentek.
Sent from my GT-P1000L using XDA App

I bought the dock to connect the tab to my projector and I found out that when the hdmi is in use all the audio will go to the hdmi cable.
Now my projector has very poor speakers and no audio out. I really hate that I can't use my Bluetooth speakers when using the dock.
There is some way to split the hdmi signal in video and analog audio?
Sent from my Galaxy Tab

Still have video and no sound
So, I still have the problem. I have the dock connected to power from the supplied (5v 2a) adapter. I then connect it to my tv. Video works great. I also speculated that maybe I had to use the 3.5mm jack for sound but that isn't working either.
I also have an adapter for rca-out and that's working fine, but I'd rather have the better quality available to me via HDMI.

I've got no solution yet. As I did, put here your the specs of your cable, maybe its something about that cable tho.
Sent from my GT-P1000L using XDA App

hdmi cable info
So, it's still not working for me. I don't have the box the other cable came in so today I went out and got a new one. I now have one of these:
http://www.digitalwarehouse.nl/hdmi-kabel-type-a-type-c-mini-2m.html​
It is a type-A <-> type-C high speed HDMI Cable. I told the guy when I bought it that it had to be v 1.3 and he said it was though I don't see that on the box any where. I know for sure that my original cable was a v 1.3 because I remember reading that on the box when I bought it.... The only other info I see on the packaging is this:
Transfer rate: 10,2 Gbit/s
BandWidth 340 MHz
ARC audio return channel​
My problem persists and to eliminate other potential causes, I've now tried it on another TV as well: no dice

It could very well be the cable. I have had some HDMI cables not output sound from DVD players. Here is the cable I bought and it outputs everything, sound, video the works.
http://www.amazon.com/AmazonBasics-High-Speed-Cable-Ethernet/dp/B003ES5ZRS/ref=sr_1_2?ie=UTF8&qid=1294706115&sr=8-2
Having my tab on my TV rocks

right cable
Well, I live in sweden. Ordering from Amazon is not ideal for me. Is there any other way I can get an indication that it might be the cable? I am loathe to keep buying cables assuming that it's the issue... I mean, is there something on the cable itself that I can look for? Certains pins or something?
/geir

I dont know that much about HDMI cables, does kinda seem pointless to keep buying cables.
Possibly google it? I would say try it on something else, however nothing else you own probably need A to C hdmi connection.
All I know is thats the cable I bought and it works perfect for me on my 4 year old projection LCD

Tested the cable with something else...
Ok, so my daughter has a camcorder which will take a mini hdmi cable. I just tested both cables with her camcorder and both of them give me video and sound...
If the cable is the issue it's definitely not because it isn't at all capable of handling audio
Any chance anyone has any other ideas? I just have this feeling there is something else going on... Like maybe I need to flash to a new version or something.
I have a european tab, in case that matters.

OTG with USB DAC

Hey All,
I'm trying to get my N6 >> OTG >> DAC setup working.
Previously, I was using a Note 4 and this worked just fine. Exact same setup.
On the N6, I'm not getting anything; no output. I'm using USB Audio Player Pro and it does not detect the USB audio device that is my DAC. If I use Neutron or Google Music, it just out rights output to the N6 speakers.
I had a split second of success when using a USB hub that was externally powered, but it stops after a second of audio. If I go straight from the N6 to DAC, I get nothing.
Everything is pointing me to the lack of power output from the N6. I suspect the Note 4 provides more amps?
I found a reddit thread that said they disabled USB charging somehow and had success, but they didn't elaborate on how it was done.
Any help and feedback us much appreciated!

Maybe the fact that the Nexus 6 is not host (OTG) - compatible can help you ?
I don't know how you can make it OTG-compatible, but if you have a way to do this, I would like to know it

USB Audio Player pro works just fine playing 192kHz Flac files through my AudioQuest FireFly, not sure why youre having issues....

I've tested with and Audioengine D1 and a JDS Labs ODAC. Both failing. OTG works, because I can connect USB mouse and USB storage just fine.

Samsung's give out much more power than Nexus devices. Samsung can power a mechanical hdd via OTG where as the nexus generally can't.

Is this something specific to Samsung hardware? Surely, there must be a way on the Nexus. It's essentially a battery and a USB port.

xomikronx said:
Is this something specific to Samsung hardware? Surely, there must be a way on the Nexus. It's essentially a battery and a USB port.
Click to expand...
Click to collapse
It was originally specific to Samsung. The S3 was the first device able to power a USB HDD.. Whether more devices can now or not, I cannot say.
That's not to say every device that needs power won't work, just those that need more power. I'm sure other usb dac devices work.. Whether yours needs more power than those, I dont know.

like I said, its working for me...so it could be the DACs you have require more power than the NX6 puts out, or maybe it just doesnt like the OTG cable you are using. try another that you know works

rootSU said:
It was originally specific to Samsung. The S3 was the first device able to power a USB HDD.. Whether more devices can now or not, I cannot say.
That's not to say every device that needs power won't work, just those that need more power. I'm sure other usb dac devices work.. Whether yours needs more power than those, I dont know.
Click to expand...
Click to collapse
With that theory, I should be able to power any DAC using a powered USB (dedicated source) as a buffer. This worked momentarily for the Audioengine D1, but then it is cut-off. I've read somewhere that some DACs will try and detect if the power is from a "self-powered" source. Not sure where I'm going with this as I don't expect a work around. Just wanted to mention that note.

xomikronx said:
Hey All,
I'm trying to get my N6 >> OTG >> DAC setup working.
Previously, I was using a Note 4 and this worked just fine. Exact same setup.
On the N6, I'm not getting anything; no output. I'm using USB Audio Player Pro and it does not detect the USB audio device that is my DAC. If I use Neutron or Google Music, it just out rights output to the N6 speakers.
I had a split second of success when using a USB hub that was externally powered, but it stops after a second of audio. If I go straight from the N6 to DAC, I get nothing.
Everything is pointing me to the lack of power output from the N6. I suspect the Note 4 provides more amps?
I found a reddit thread that said they disabled USB charging somehow and had success, but they didn't elaborate on how it was done.
Any help and feedback us much appreciated!
Click to expand...
Click to collapse
Try with a powered otg cable. Like this; http://www.amazon.com/Micro-Cable-Player-Samsung-Galaxy/dp/B00CXAC1ZW
One plug to charger, one plug to phone, device in the last.
---------- Post added at 02:12 PM ---------- Previous post was at 02:11 PM ----------
Ulunyth said:
Maybe the fact that the Nexus 6 is not host (OTG) - compatible can help you ?
I don't know how you can make it OTG-compatible, but if you have a way to do this, I would like to know it
Click to expand...
Click to collapse
Just where did you come up with that absurd idea?
While the factory firmware is not configured to mount a usb disk, the device and kernel are both most definitely otg ready.

I've ordered a view different cables to test. Hopefully they will come soon.

OTG support on Moto Z Play

There is support for OTG to Moto Z Play? I found some OTG adapter for USB-C, but I'm not sure if there is compatibility.
Thanks in advance.

DarkCajjun said:
There is support for OTG to Moto Z Play? I found some OTG adapter for USB-C, but I'm not sure if there is compatibility.
Thanks in advance.
Click to expand...
Click to collapse
I bought a Lexar USB Flash drive and it does work

I tried a couple of type C adapters, and both work.

I got ahold of an Apple USB-C cable and it worked on my Z Force, so I'd say it's a pretty good bet for the Play as well.

Anker USB-C to USB-A
I have bought the OTG-USB from Anker (USB-C to USB 3.0).
Works perfect. Testet 4GB USB 2.0 and 32GB, 64GB and 128GB Lexar USB 3.0 Sticks with "exFAT".
All working fantastic.
Ciao RZ

Thanks for the post. Reminded me to dig out my adapter and try it with my USB thumbdrive. With my battery pack, this thing would last forever on a airplane

I use sandisk Otg usb drive works perfect!!!!

the speed are really slow . I am using a usb-c to usb and the speed are only 2MB/s while I get 150MB/s witht eh same USB stick on my pc ,

The nonda USB-C to USB 3.0 Mini Adapter does not seem to work - I have contacted their support and am waiting to see what thy say.
Tried it with a two USB drives and a USB DAC. All of them are recognized that they are connected but the drives says they are corrupt and the USB DAC outputs garbage noise.

It used to work with Meenova micro usb card reader and a c-type adapter, as with c-type card reader, I also could connect and read/write hdd (ntsc and exfat) BUT.....
ALL OF A SUDDEN IT STOPS EVEN RECOGNIZING ANY USB TYPE DRIVES/CARDS
The readers led don't even light up.....
HEEEEEELLLLPPPPP!!!!

Few file browsers work. FX Commander and Solid do but differently, I use both.
I cannot find a music player that does. Please post yours that does play through OTG.
I have a dash 1 phone.
This is my adapter https://www.amazon.com/gp/product/B0194WSKOM/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

Hey, I am wondering if anyone else has tried connecting a ps4 controller over OTG. For me it just doesn't work. I don't know if it's just my method of plugging it in (USB C to Micro B to USB A to PS4 controller)

aviwdoowks said:
I cannot find a music player that does. Please post yours that does play through OTG.
Click to expand...
Click to collapse
Did you try the integrated music player of Total Commander? It should do. Currently do not have my OTG handy, if it's complicated for you I can try somewhen the next days.

tag68 said:
Did you try the integrated music player of Total Commander? It should do. Currently do not have my OTG handy, if it's complicated for you I can try somewhen the next days.
Click to expand...
Click to collapse
Total C and it's plugin have to create a dup of the file you want to send to a player. Pretty nonfunctional for quarter to 1 GB music file. File Commander just links the file, instant player transfer.
Well, Poweramp is claiming to support any phone for native DAC abilities. They have a request forum. I posted a thread in Q & A. The latest version will browse our OTG but only uses our DAC to 44k. Ours is capable of 192k. USB audio does use our DAC fully but no OTG and no plans to do so.
If you tolerate 44k get Poweramp.

jonnyd100 said:
Hey, I am wondering if anyone else has tried connecting a ps4 controller over OTG. For me it just doesn't work. I don't know if it's just my method of plugging it in (USB C to Micro B to USB A to PS4 controller)
Click to expand...
Click to collapse
I don't have a USB-C OTG cable, but if you press and hold both the share + ps buttons while the controller is in standby it turns on BT.
Then on your phone go to the bluetooth menu and connect and it works wireless. Why use OTG when you can use wireless

aviwdoowks said:
Total C and it's plugin have to create a dup of the file you want to send to a player. Pretty nonfunctional for quarter to 1 GB music file.
Click to expand...
Click to collapse
Send to a player? What are you talking about? I meant the integrated player of TC, not sending to a player. Just tested it out: long select a file, press play, and it instantly plays. I'm quite sure there is no limit. Select some music, add it to the TC player queue, I'm quite sure it will work.

tag68 said:
Send to a player? What are you talking about? I meant the integrated player of TC, not sending to a player. Just tested it out: long select a file, press play, and it instantly plays. I'm quite sure there is no limit. Select some music, add it to the TC player queue, I'm quite sure it will work.
Click to expand...
Click to collapse
Using TC while browsing OTG:
When I select a flac file(bitrate 192k) and ask TC to open as audio, it makes a copy in internal memory. I would then play it with https://forum.xda-developers.com/moto-z-play/themes/music-players-one-standout-dac-to-192k-t3533577 .
I did not try it's internal player as it would use the DAC of our phone at 44k bitrate, standard CD quality.
My concern is music played from OTG. I did not try it but I think it would need to duplicate the file even when playing from it's internal player

aviwdoowks said:
I did not try it's internal player as it would use the DAC of our phone at 44k bitrate, standard CD quality.
Click to expand...
Click to collapse
Did not know that other behavior is possible. For me playing at a higher rate than CD will make no difference, my ears are not that good.
aviwdoowks said:
My concern is music played from OTG. I did not try it but I think it would need to duplicate the file even when playing from it's internal player
Click to expand...
Click to collapse
Don't think so. It should just play. Of course it will use some buffer for playing, but you shouldn't notice that.
My recommendation was "try TC with internal player". That requirement with more than 44 kHz came later. You wrote "TC does not work, but I didn't try the internal player." Guess I'm out of here now. Good luck!

Aerox912 said:
I don't have a USB-C OTG cable, but if you press and hold both the share + ps buttons while the controller is in standby it turns on BT.
Then on your phone go to the bluetooth menu and connect and it works wireless. Why use OTG when you can use wireless
Click to expand...
Click to collapse
I know I can use wireless, but most of the time I've tried it, it's been laggy AF, that's why I would like to use OTG

USB-C to HDMI?

Has anyone tried a USB-C to HDMI lead on the Nokia 8?
Does it work? And if it does which lead are you using.

sambartle said:
Has anyone tried a USB-C to HDMI lead on the Nokia 8?
Does it work? And if it does which lead are you using.
Click to expand...
Click to collapse
Did you find the answer already?
I'm wondering about that too...

Anyone? :fingers-crossed:

I used my Macbook Pro dock, it worked.
Sent from my Nokia 8!

Luhccas-X10 said:
I used my Macbook Pro dock, it worked.
Sent from my Nokia 8!
Click to expand...
Click to collapse
So glad that it is supported on this device. Many vendors are killing this feature for some reason.
It's a pain in the a** to check if a new device has it nowdays.
Thank you!! :good:

tal_sarid said:
So glad that it is supported on this device. Many vendors are killing this feature for some reason.
It's a pain in the a** to check if a new device has it nowdays.
Thank you!! :good:
Click to expand...
Click to collapse
Well, we don't all have Macbook Pro docks so does it work without that?
I bought a USB-C to HDMI cable today but I can't get it to work – are there any settings (or apps?) that I'd need to change/install to get this to work?
I just want to be able to plug my phone into a TV and play videos when I'm in hotels or away from home etc.
I'm new to both Android and the Nokia 8 so maybe I'm just missing something that's obvious?
(The most annoying thing is that it works perfectly on my old Nokia Lumia 950XL Windows Phone.)

nzmike001 said:
Well, we don't all have Macbook Pro docks so does it work without that?
I bought a USB-C to HDMI cable today but I can't get it to work – are there any settings (or apps?) that I'd need to change/install to get this to work?
I just want to be able to plug my phone into a TV and play videos when I'm in hotels or away from home etc.
I'm new to both Android and the Nokia 8 so maybe I'm just missing something that's obvious?
(The most annoying thing is that it works perfectly on my old Nokia Lumia 950XL Windows Phone.)
Click to expand...
Click to collapse
Still didn't get the phone yet...
From what I know the native support works with USB-C portable adapters with a HDMI port. Don't know about the cable ones.
I have this, https://www.amazon.com/dp/B01EZTRI42/, and it's working well with the native support of the HTC U11, still don't know about Nokia 8 though

I've contacted Nokia customer care and that's their official answer regarding this matter:
"Thank you for contacting Nokia Mobile Care!
We would like to inform you that the Nokia 8 does not support video out through the USB type C neither the HDMI. If you want to connect the phone to the TV please try to buy the chromecast to cast the device to the TV.
We hope that the above information is useful for you! If not, or if you have another question, please feel free to contact us again.
Best regards,
Nokia Mobile Care "
Are you sure that the Nokia 8 can cast its screen though a macbook pro dock to an external display through HDMI @Luhccas-X10 ?

I have a dodcool usb c hub and hdmi does not work on 8.1

I got my Nokia 8 today and tried a USB-C to HDMI cable I used on my old HTC U11 and unfortunately it does not work.
I'm very much doubting that the Nokia 8 has this ability.

Well today I tried a macbook dock and no joy, seems pretty conclusive that it doesnt work

I'm pleased to confirm that Displaylink works with Nokia 8! I used this one: https://www.amazon.co.uk/gp/product/B01B5RN9ZY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
In theory any Displaylink hub or cable should work, note that you need to connect to the phone via a USB host cable e.g. https://www.amazon.co.uk/gp/product/B01GKS2HCE/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
This should work on most devices with a USB port, for me it works on my Kindle HD and Laptop too should its a useful thing to have anyway.
I got the info from a thread for the OnePlus 5T so more info in there:
https://forum.xda-developers.com/oneplus-5/themes/wired-tv-one-plus-5-makes-displaylink-t3667974

jamhtcman said:
I'm pleased to confirm that Displaylink works with Nokia 8! I used this one: https://www.amazon.co.uk/gp/product/B01B5RN9ZY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
In theory any Displaylink hub or cable should work, note that you need to connect to the phone via a USB host cable e.g. https://www.amazon.co.uk/gp/product/B01GKS2HCE/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
This should work on most devices with a USB port, for me it works on my Kindle HD and Laptop too should its a useful thing to have anyway.
I got the info from a thread for the OnePlus 5T so more info in there:
https://forum.xda-developers.com/oneplus-5/themes/wired-tv-one-plus-5-makes-displaylink-t3667974
Click to expand...
Click to collapse
Well, very odd!
I tried a Displaylink-based hub myself with a Nokia 8 and it didn't work for me just like the regular adapters (which all of them, including the Displaylink one, worked with my HTC U11).
So, please elaborate about what you did. Is it a plug & play process? Did you do anything special to make it work for you?
By the way, I tried it with this Dell hub (which is Displaylink based on http://www.displaylink.com/products/find?vid_hdmi=1):
http://www.dell.com/en-us/shop/acce...note_bnrank=0&baynote_irrank=1&~ck=dellSearch

So firstly you need to have the displaylink app installed on your phone, apart from that you should just have to plug it in - the app will then prompt you to start showing your screen which you say OK to and that's it.
However... I found that the vast majority of the time it just simply doesn't work. Every time the device has a notification to say a device it connected and drawing power but very rarely will the displaylink actually work. I literally had to connect and disconnect the device around 100 times on some attempts before it works, sometimes fewer but the weird thing is once its connected and working, I can remove it and plug it back in and it will work straight away.
Its a really strange issue which I don't understand, it cant be the cable as it works consistently but only after getting it to work that first time. I'm thinking there may be a bug with the 8.1 firmware as another forum mentioned the maximum charge amp is reduced in 8.1. Another forum mentioned that on the Xperia XZ Premium display link only works with external power to the displaylink hub so perhaps its drawing to draw too much power and its just a fluke that it occasionally will work. Unfortunately I tried to connect external power to my hub and blew it so I can't test any further
I've tried the same setup on a Galaxy S7 Edge and that worked every time, no issue so it must be something strange with the device OR the adaptor used to convert the displaylink hub from USB to USB C.

LUHCCAS-X10
You fraud. I bought my Nokia 8 on the basis of your post. Because you decided to post this BS, and then made a prompt exit from this thread.
Now I am stuck with it. With this phone and with no ability to hook it up to my projector without unacceptable levels of latency through Chromecast or some such.
I even wasted money on this USB-C to HDMI cable (Thunderbolt 3 compatible), that doesn't work.
My only hope now is this DisplayLink setup. Any more news on it?

I messaged LUHCCAS and they said this is what they used: https://www.aliexpress.com/item/USB...a741666&transAbTest=ae803_4&priceBeautifyAB=0
Although they didn't specify which. None of them say they use displayport but I guess its possible, if so then perhaps they are not a fraud.
I have ordered a new displaylink hub so I will let you know if that works more consistently than the other one I tried.

Sounds good, please update the thread if you get the Hub. I want to use the Nokia with my Car Radio via HDMI (Appradio Unchained)

Displaylink adapter support
I'm happy to confirm that I managed to get the Nokia 8 connected to a TV using a DisplayLink adapter. :victory:
It's working pretty good (both image and sound) as long as the DisplayLink presenter app is installed.
From the first couple of minutes with it I didn't experience any issues that @jamhtcman mentioned and it's working very well at any time that I plug in the adapter to the phone (without an external power source).
Link to the adapter that I'm using:
- Link is broken -
Side note: You'll need to buy a separated USB 3.0 to USB-C OTG cable because the adapter in the box is too thick for most of the cases
---------- Post added at 21:43 ---------- Previous post was at 21:39 ----------
tal_sarid said:
Well, very odd!
I tried a Displaylink-based hub myself with a Nokia 8 and it didn't work for me just like the regular adapters (which all of them, including the Displaylink one, worked with my HTC U11).
So, please elaborate about what you did. Is it a plug & play process? Did you do anything special to make it work for you?
By the way, I tried it with this Dell hub (which is Displaylink based on http://www.displaylink.com/products/find?vid_hdmi=1):
http://www.dell.com/en-us/shop/acce...note_bnrank=0&baynote_irrank=1&~ck=dellSearch
Click to expand...
Click to collapse
Oh, and by the way, the hub that I've tested on my quoted post from before wasn't a DisplayLink hub after all. Hence, it didn't work.

tal_sarid said:
I'm happy to confirm that I managed to get the Nokia 8 connected to a TV using a DisplayLink adapter. :victory:
It's working pretty good (both image and sound) as long as the DisplayLink presenter app is installed.
From the first couple of minutes with it I didn't experience any issues that @jamhtcman mentioned and it's working very well at any time that I plug in the adapter to the phone (without an external power source).
Link to the adapter that I'm using:
Side note: You'll need to buy a separated USB 3.0 to USB-C OTG cable because the adapter in the box is too thick for most of the cases
---------- Post added at 21:43 ---------- Previous post was at 21:39 ----------
Oh, and by the way, the hub that I've tested on my quoted post from before wasn't a DisplayLink hub after all. Hence, it didn't work.
Click to expand...
Click to collapse
Awesome news, awesome :good:
BTW does it charge your phone while your phone is plugged in?
Also this is probably a bit of a specific question to pose; but by any chance have you checked whether the phone outputs just 2-channels of sound (stereo) through the displaylink adapter, or does it output however many are in the source material (e.g. 5.1 channels if you play a video file with a 5.1. surround sound audio track).

flamming_python said:
Awesome news, awesome :good:
BTW does it charge your phone while your phone is plugged in?
Also this is probably a bit of a specific question to pose; but by any chance have you checked whether the phone outputs just 2-channels of sound (stereo) through the displaylink adapter, or does it output however many are in the source material (e.g. 5.1 channels if you play a video file with a 5.1. surround sound audio track).
Click to expand...
Click to collapse
No option to charge the phone while casting I'm afraid.
Moreover, I can't tell about the sound cause I don't have any TV and AVR that supports 5.1 channels sound though an hdmi port.

Audio out via the USB in car?

Hi
I've received my P20 Pro this week and am loving the phone so far. However, one big issue remains that i can't seem to get my head around - how to play audio from the phone through my non-Bluetooth car stereo?
I previously had an iPhone 6 where this was easy; plug the phone in to the stereo via USB and it would simultaneously charge and play music from the phone through the car stereo.
But when I plug in the P20 Pro via the same USB port, I can't seem to get audio coming out. I know it's possible - as obviously headphones plug in to the same USB-c port - so is there something I have to turn on or toggle to get it to send audio out?
Any help much appreciated. Thanks.

slangking said:
Hi
I've received my P20 Pro this week and am loving the phone so far. However, one big issue remains that i can't seem to get my head around - how to play audio from the phone through my non-Bluetooth car stereo?
I previously had an iPhone 6 where this was easy; plug the phone in to the stereo via USB and it would simultaneously charge and play music from the phone through the car stereo.
But when I plug in the P20 Pro via the same USB port, I can't seem to get audio coming out. I know it's possible - as obviously headphones plug in to the same USB-c port - so is there something I have to turn on or toggle to get it to send audio out?
Any help much appreciated. Thanks.
Click to expand...
Click to collapse
Check you don't have this option enabled in developer options?

danifilth4king said:
Check you don't have this option enabled in developer options?
Click to expand...
Click to collapse
Thanks - I looked and it's not checked. In fact, the headphones work when you plug them in, so it is allowing audio out with certain connections.
It's just when I use the charging lead to connect the phone to the car stereo (USB) - nothing happens. It doesn't even charge, and says "check USB" on the front of the stereo. if I play music when it's connected, it just comes out the phone - which obviously it wouldn't do if it was connected to the stereo.
Do I need a specific audio lead, rather than just the basic charging one that comes with it?
Coming from an iPhone background, it's just the same lead... so I'm struggling to see why this won't work either.

My case was huawei p20 pro generate so much noise and jitter during playing through USB audio connect to Helix dsp, it solved by changing USB speed mode from full speed mode to high speed mode on the Helix dsp USB setting. As my iPhone was working fine on both mode. In case if you can try to change setting on your car stereo system. Try to consult with your car stereo manufacturer.

Hi Slangking, did you already find a solution to use P20 (pro) audio over USB in your car? I'm having the same issue as you, went from the iPhone 6 to p20. Just a cheap USB stick works, and I could even remote spotify on my iPhone with my steer trough USB. Changing the USB output in the developer settings to audio source didn't work
- EDITED -
I did some research and mounting your memory card as a USB Mass Storage will work like explained over here, but I still can't find out how this will work for the internal storage...

UPDATE
I found something called WIRELINQ: Smart Android USB Converter Cable for Car Stereo. Started as a kickstarter project, but are now able to buy. Will try that one out.

I got one of these and found I can't get anything to play through the stereo, the audio plays on the phone speakers but the track info displays on the stereo screen and the steering wheel controls also work, I can disable USB audio streaming via the dashlinq app which makes radio player within dashlinq work properly.. but nothing else works.. have you had any luck?

Thanks for your reply. You are a step ahead of me. I have the Wirelinq cable but couldn't get it to work, not even the track info on my cars stereo display. It recognise the Wirelinq cable, but not my phone. I am in contact with GROM and even tried to install a new firmware update (which I was able to install myself by connecting the cable to my computer), so there last message was:
This is issue of the phone USB Audio output in software not working correctly as standardized by Android's AOSP. You will have to contact Huawei to get support and resolve it on phone's software end.
Click to expand...
Click to collapse

brumemail said:
Thanks for your reply. You are a step ahead of me. I have the Wirelinq cable but couldn't get it to work, not even the track info on my cars stereo display. It recognise the Wirelinq cable, but not my phone. I am in contact with GROM and even tried to install a new firmware update (which I was able to install myself by connecting the cable to my computer), so there last message was:
Click to expand...
Click to collapse
Did you ever get anywhere with this? I'm a new P20 Pro owner (also having switched from iphone 6) and wanting to crack this issue. Thanks.

Not sure if there is a solution. iPhones behave differently when connected to stereos, just like an usb stick. Android devices don't, unfortunately. I am using an AUX cable with the usb-c adapter in my husbands car, or bluetooth streaming in my car.

Bleutooth receiver to AUX
fell.matt1602 said:
Did you ever get anywhere with this? I'm a new P20 Pro owner (also having switched from iphone 6) and wanting to crack this issue. Thanks.
Click to expand...
Click to collapse
No, it didn't work. Maybe it will if GROM will come out with an update. I've returned my cable and have bought a bluetooth to AUX receiver adapter on eBay for just a few dollar. This actually works very well, you plug the bluetooth adapter in your USB and the cable in your AUX and you can listening wireliss music on each app through bluetooth. The downside is that you won't be able to see your track details, no remote from your steer and the quality is different. But you can still charge you phone with a normal USB cable while listening. It's not a solution, but I got used to it now.

Not a bad idea with the bluetooth to aux!

all the pugs said:
Not sure if there is a solution. iPhones behave differently when connected to stereos, just like an usb stick. Android devices don't, unfortunately. I am using an AUX cable with the usb-c adapter in my husbands car, or bluetooth streaming in my car.
Click to expand...
Click to collapse
iphones actually don't behave like a usb stick when connected to a stereo. the music is still played on the iphone, but the sound is streamed to the stereo. controls on the stereo actually control the playback on the iphone itself.
with android, to play audio over usb, you need to use mass storage mode, which will behave just like a usb stick.
ios can output digital audio over it's usb cable, which the stereo can receive.
android can output audio through usb-c, but i don't think that it can be used to output audio over the usb cable like iphones can. it might be some protocol that iphones use and android phones don't, but technically it should be possible.

Just stumbled upon this thread as I am in the same situation. Basically, I have a P20 Pro and a Huawei Mediapad M5 Lite that are behaving exactly the same..i.e they cannot play audio from USB to car stereo's USB ports. The internal media can be browsed and played via car stereos interface but you cannot stream music via USB from phone (say Spotify) to car stereo.
USB audio streaming works if I enabled ANDROID AUTO at the car stereo and installed ANDROID AUTO in the phone/tablet. You might ask why not just settle for this setup?
I can, butI I hate so much the AA's "Swipe to Unlock" lock and the changes in the UI when AA is active.
What I want is the plain/original phone interface (without AA) and all audio routed via USB.
Bluetooth, I know is an option, but again, it would be nice if this (USB) can be solved. It seems possible, I think. If AA can switch USB audio streaming on, can other apps or workaround/reverse engineering not?
BTW, i tried playing with the Developer Options, USB Configuration as "MTP or Audio Source" --- no luck here

Just bought a Kenwood DDX6906S receiver for my 2013 GMC Sierra I cannot get anything to work via USB. USB debugging enabled. I feel like I've been going in circles. any help would be super appreciated, TIA