Develop Bugs

Audio problem with the MHL adapter

I can not believe what's happening with my new cable MHL! I have a TV with DVI input, but I've never had any problem because with a simple HDMI-DVI adapter I could always play HD video on my TV and, from the headphone, I have the audio connected to a "AUX input" of a stereo. It always worked with my laptop and my hard drive media!!
The problem is that the galaxy s2 headset turns off the sound when you plug the MHL cable. I can not hear anything on my TV!
I do not know what to do, I think has no solution. I even connected the mobile audio to my notebook's bluetooth, but when I connect the mhl cable no sound is heard again!!
Does anyone have any solution? Is there any menu to force the sound through headphones?
thanks

I think I have a solution. I Expose it to help someone having the same problem:
1 .- Buy a HDMI male to 5 RCA RGB audio video av component cable
2.- Buy a DVI-I 24+5 Male to 3 RCA RGB Female Converter Adapter
Now you have the video and audio separately using an HDMI cable
3.- Connect the RGB cable to the DVI and audio cables to your stereo
*I can not put pictures of the cables because I am a new user and the system will not let me, sorry.

frander said:
3.- Connect the RGB cable to the DVI and audio cables to your stereo
Click to expand...
Click to collapse
Sorry, HDMI doesn't carry analog audio signals. So you are out of luck with this RCA solution.
You need to a) change your TV model, or b) use a cheap AV receiver in between the GS2 and the TV set.

Think it's impossible to work? What bad news!! I don't understand why someone sells a cable that doesn't work!
What a fool I was to believe the technical characteristics of amazon:
Gold plated HDMI to 5 RCA component video audio AV cable.
Provides high resolution up to 1080p.
High definition sound and clear image transfers.
* if you write 'HDMI Male to 5 RCA RGB Audio Video AV Component Cable' in google, is one of the first result (amazon)
Does not matter, I've only lost 6 euros (ebay).
Thanks

Anyway I don't understand why we talk about converting the image and sound in analog. There are manuals about how to open an HDMI cable and also has the red, green and blue wires inside. Just for separate cables lost the concept of "digital? Not understand...
My TV has DVI input, which is also digital. As I said before, I have an HDMI female to DVI male that works perfectly on my TV when connect my laptop and my multimedia hard drive. If I could break the adapter, it would have too a derivation of wires a pin to another, right? And it works in high definition
All I wanted to do with this cable was to extract the sound from an HDMI cable because the Galaxy S2 lost the sound of the headphone and I can not connect to the AUX input of my amp.

The HDMI digital audio signal is transmitted as a single aggregated digital stream that contains a variable number of digital channels (from 2 to 7.1 and even more).
Also in the pre-HDMI days the DVD's SD multichannel digital audio stream was transferred using a single coaxial cable (electrical) or a single optical cable, hence no separated cables for every channel.
Therefore digital channels have to be previously decoded and separated, and then converted by DACs to discrete analog signals.
No hope then to directly get from HDMI a couple of stereo analog signals to feed your stereo amplifier, you should have read all the negative user reviews of that cable on Amazon UK.
My suggestion: buy a cheap (or used) AV receiver with HDMI inputs/outputs and then connect its analog stereo monitor output to the TV auxiliary audio input (red/white RCAs or 3.5mm connector), or just use a couple of speakers connected to the AV receiver.

I was really hoping to use this phone with any normal DVI monitor and use headphones connected to the phones headphone jack. I guess this destroys that idea.
Why is it that everytime something like MHL comes along they implement it with absolutely no foresight as to how it might be used?

I think that MHL is just similar to HDMI in that respect.
So you wouldn't get analog audio output from the GS2 even if it had an HDMI instead of an MHL.
Today the manufacturers of latest cell phones expect connections only with TV sets equipped with complete digital ports (generally HDMI), not considering their products to be used with computer monitors.
BTW, DVI video-only port today is considered not suitable for full-HD audio-video material, and probably couldn't even fully support 1080p/24fps video signals.

DVI monitors support 60hz 1080p okay. Whether or not they cans support 1080p/30 or 1080p/24 purely depends on the monitor's firmware. Most monitors woudn't support 24hz but some probably support 30hz, which I think the GSII uses.
Also I didn't know HDMI out on phones did the same thing. Thanks for telling me that.

I guess it's the matter of audio routing!
Maybe someday someone could mod the kernel to handle these types of situations ;-)
Fingers crossed!

I found this app "SoundAbout" witch let you change the output
it works perfectly for me, sound on the smartphone and video on the monitor (tested on galaxy s3)

Coincoin0017 said:
I found this app "SoundAbout" witch let you change the output
it works perfectly for me, sound on the smartphone and video on the monitor (tested on galaxy s3)
Click to expand...
Click to collapse
Thank you Coincoin0017. But the problem resolved itself when I installed android 4.0.4. Now the headphone output works when I plug the MHL adapter

Serav said:
I was really hoping to use this phone with any normal DVI monitor and use headphones connected to the phones headphone jack. I guess this destroys that idea.
Why is it that everytime something like MHL comes along they implement it with absolutely no foresight as to how it might be used?
Click to expand...
Click to collapse
now days they only cater for the mainstream market.
the assumption was probably everyone will only use it on a hdtv that has its own speakers.
I agree its a sad state of affairs but thats how it is I guess, I am currently trying to get sound as I am using a hdmi monitor which has no speakers.
---------- Post added at 11:29 PM ---------- Previous post was at 11:19 PM ----------
Coincoin0017 said:
I found this app "SoundAbout" witch let you change the output
it works perfectly for me, sound on the smartphone and video on the monitor (tested on galaxy s3)
Click to expand...
Click to collapse
sweet this works, thanks man.
doing the same, sound to phone, picture to hdmi monitor.
google seems brainless at times they really do, why this isnt in the OS I dont know.

Intersting

frander said:
Thank you Coincoin0017. But the problem resolved itself when I installed android 4.0.4. Now the headphone output works when I plug the MHL adapter
Click to expand...
Click to collapse
Excellent. ... (hopefully still works on 4.3) I have the same problem with my PWD8 which is a panel so doesn't have speakers.
Is it possible to take a cable from the phones (Note 2) 3.5mm jack and put it into an AV receiver so that it uses the speakers attached to it?
Or even bluetooth sound to a separate speaker from the phone?

Sound about app useful for allowing sound to get to av receiver via rca cable

Any non hdmi cables out there ie. rca??

Hi everyone
Is there any cables out there that either fit directly into the phone or through the dock thar output to rca or similar, as most tv's on the road or b&bs don't have a hdmi port.
Seen a mini hdmi to rca cable, but is the port on the atrix/dock a mini hdmi or some moto hybrid port.
Any info sure would make trips on the road better than STD tv rubbish.
Thanks.

I purchased an hdmi to dvi+1 connector. maybe you can get a dvi to vga than to rca and so fourth. Just trying to help. I know its a little extra but hey.
Sent from my MB860 using XDA App

wont work without a box to convert the digital to analogue, the reson dvi-vga works on pcs is because dvi can also carry an analogue signal, but that wont help in this case

HDMI is digital, RCA is analogue. You cannot feed a digital signal into something that's analogue. You need some sort of a converter box. Too expensive of a process in my opinion.
Its easier for digital gadgets to produce HDMI signals because the signal is decoded in the device that's receiving it. Analogue signals require an output with some strength to be able to make it to the receiving end----requires more power and hardware.

eatkabab said:
HDMI is digital, RCA is analogue. You cannot feed a digital signal into something that's analogue. You need some sort of a converter box. Too expensive of a process in my opinion.
Its easier for digital gadgets to produce HDMI signals because the signal is decoded in the device that's receiving it. Analogue signals require an output with some strength to be able to make it to the receiving end----requires more power and hardware.
Click to expand...
Click to collapse
correct. you could go with a MicroHDMI to HDMI, connect an HDMI to DVI+ adapter, and a headphone jack to RCA or headphone jack to headphone jack for audio, as DVI+ does not carry audio like HDMI does.
There are small portable DAC converters. they cost about $100. i have 2 for different studio equipment, but i would never use it for something like this.

eatkabab said:
HDMI is digital, RCA is analogue. You cannot feed a digital signal into something that's analogue. You need some sort of a converter box. Too expensive of a process in my opinion.
Its easier for digital gadgets to produce HDMI signals because the signal is decoded in the device that's receiving it. Analogue signals require an output with some strength to be able to make it to the receiving end----requires more power and hardware.
Click to expand...
Click to collapse
Uh...............thanks!... : /
Sent from my MB860 using XDA App

Thanks for the replies guys, so I am guessing this item wouldnt have done the job ??
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=110712983212
What is the conector on the Atrix that outputs to hdmi ?
Thanks

I would settle for HDMI -> Fiber Optic Audio

I don't know if that is possible... cause the audio out on HDMI is only triggered most likely by video out. I have an HDMI to DVI converter, and it puts out video, but doesn't put out sound since DVI can't handle sound. The video pinout is the same. The sound plays through the phone. Which makes me think that audio only would not trigger HDMI.

Yeah, I understand what you're saying, they sell black box type of deals but would like a solution cheaper than the phone itself. Not supremely important, would just be nice.

pgunning1 said:
Thanks for the replies guys, so I am guessing this item wouldnt have done the job ??
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=110712983212
What is the conector on the Atrix that outputs to hdmi ?
Thanks
Click to expand...
Click to collapse
Would love to just use hdmi but most tv in hotels/b&B's are just scart & rca. Is the output a mini hdmi or something else on the atrix, if it is I'll buy one just to try.
ATV
Paul

S3 as "HTPC"

I'm trying to hook my S3 to my TV setup and am not having much fun with it. With the MHL I am getting stuttering and lagging. I have:
Samsung MHL adapter (from Infuse)
Samsung 11-to-5 pin converter
Samsung 1080p HDTV
BT keyboard & mouse, charger, HDMI, etc.
Stock ROM
The image quality is good for web and photo use but it lags and stutters. For games it makes some games nearly unplayable. I can see the phone's screen and everything is smooth but looking at HDTV I can see a lag maybe 0.5 seconds and much slower update rate, very obvious when you move the mouse. The TV shows [email protected], so it's not 1080p. I've done a LOT of searching online so maybe there's not anything new to say but I guess some people have been able to get [email protected] I guess one thing I didn't find, does ANYONE have smooth/lag-free 1080p with S3 MHL with any adapter?
I wonder if 1080i video plays at true 1080 resolution because I noticed when I play back 1080i videos I've taken with the phone itself the image quality and speed are much better. Maybe that's why Samsung decided on 1080i output rather than 720p? I came across a kernel for HTC One S (which is also a Qualcomm S4) that supposedly forces 720p... is there one for the S3?
Another issue is that audio only comes out HDMI, I want it to come out of headset to plug into AV system. I've seen a lot of people with the problem posting but no solutions? Probably isn't possible...
My third problem I actually found an issue to. That is removing the onscreen keyboard when using bluetooth keyboard and mouse. For that I used the app Null Keyboard: https://play.google.com/store/apps/details?id=com.wparam.nullkeyboard&hl=en

gillius said:
...Another issue is that audio only comes out HDMI, I want it to come out of headset to plug into AV system. I've seen a lot of people with the problem posting but no solutions? Probably isn't possible...
...
Click to expand...
Click to collapse
Thought I'd pipe in. I am also trying to figure out if this MHL adapter allows 1080p video as I want to use it for watching movies on a 60" 1080p plasma TV, as I don't want to purchase it if it doesn't and the forums are very confusing on whether it does or doesn't.
I wanted to say about your second problem. If you want to pipe the audio to a stereo/surround sound system, all you have to do is plug the TV audio output into the sound system's audio input. This is how I have my laptop to TV setup currently: laptop HDMI-> TV; TV audio out -> sound system.
Just be aware, some TV"s or sound systems might not have compatible audio connections. For example, in order to hook up my Vizio sound bar to my Panasonic Plasma, I had to use the fiber optic cable.... didn't have audio RCA audio out on my Panasonic.

Thought I would amend my previous statement. I was assuming that you wanted the sound that goes with the TV only... However, if you are just looking to have music on without turning on your TV, you can get a cheap miniplug-to-RCA adapter from Radioshack or the like. Should probably cost around $10 on any given day. I've been doing this with my sound system and portable phone/players for years.

buy a dual/quad core HDMI "thumbstick" for $100.
It'll be better then what you are trying to accomplish

Can MHL adapter preserve original input aspect ratio?

Hi,
I have Galaxy Tab S2 9.7 LTE (2048x1536, 4:3 aspect ratio) and would like to connect it to a 4:3 old CRT SD-TV and get tablet screen mirrored in fullscreen since aspect ratios are the same after all.
I've tried Samsung MHL 2.0 HDTV adapter together with a HDMI to AV adapter, and the result is both pillarboxed and letterboxed picture on TV. It seems that MHL adapter always outputs 16:9 picture, thus pillarboxing the original 4:3 content, and then HDMI to AV adapter simply letterboxes the received 16:9 input into 4:3 output as that's the target aspect ratio for this CRT TV.
So, I guess the issue is in MHL adapter converting everything into 16:9 format. However, I 'm not sure if this happens because of input resolution (2048x1536) is bigger than 1080p, or it's just something that MHL adapters do. I haven't tried to pass 1024x768 through MHL as my tablet is not rooted, so if someone could try this and see if that works, that would be awesome!
Is there any workaround around this? I guess changing resolution on the tablet to 16:9 would help eliminate the pillarboxing, but content would still be letterboxed. TV itself does not have any zooming capabilities, btw.
Is there maybe some HDMI scaler/converter/whatever device that can zoom the central part of the image to fit the screen or am I pretty much screwed with this TV?
Thanks!

FWIW, i bought one of these http://www.amazon.com/Updated-Versi..._2?ie=UTF8&qid=1456763189&sr=8-2&keywords=mhl and, to my dismay, it outputs to my 16:9 display(s) in the original 4:3 ratio of the tablets screen. I have been trying to find a way of getting it to output 1080p like I want. Do you happen to know if that official samsung MHL adapter outputs 1080p to a HDTV?

It's been a while (some years) since I worked with digital output to CRT, but if memory serves me correct you need a scan converter for a CRT. Monitors would have these built in, but not a 'normal' TV.

5.1 audio for projector/amp setup

I have the 2nd gen 4K Fire TV. It is rooted and all works more or less as I expect. HOWEVER, because the 2nd gen version doesn't have a digital audio link to connect directly to my amp (which is connected to a 5.1 speaker setup), I have been forced to use a USB to SPDIF adapter (Fanmusic FM-6011, but there are many alternatives available). It is a very solid adapter and works without issue whenever my projector is off. When I fire up the projector, however, the audio signal is sent directly to the projector's built-in speakers via HDMI and I lose the SPDIF connection to my amp.
I have tried all the available audio configurations in the Fire TV settings, but none of them make any difference. Given that the audio works when the projector is off, this surely indicates that the problem is not with the USB connection or the SPDIF adapter. Is there any setting or program or workaround that will allow me to send the HDMI signal to my projector and the corresponding audio via the USB adapter to my amp?
If not, is there a cheap gizmo that I may be able to source on eBay which will allow me to split the HDMI audio signal from the HDMI video signal? Such a shame that they decided to drop the audio port on the 2nd gen.
I'd be very grateful for any pointers from anyone who has any experience with a similar setup.

pfhastie said:
I have the 2nd gen 4K Fire TV. It is rooted and all works more or less as I expect. HOWEVER, because the 2nd gen version doesn't have a digital audio link to connect directly to my amp (which is connected to a 5.1 speaker setup), I have been forced to use a USB to SPDIF adapter (Fanmusic FM-6011, but there are many alternatives available). It is a very solid adapter and works without issue whenever my projector is off. When I fire up the projector, however, the audio signal is sent directly to the projector's built-in speakers via HDMI and I lose the SPDIF connection to my amp.
I have tried all the available audio configurations in the Fire TV settings, but none of them make any difference. Given that the audio works when the projector is off, this surely indicates that the problem is not with the USB connection or the SPDIF adapter. Is there any setting or program or workaround that will allow me to send the HDMI signal to my projector and the corresponding audio via the USB adapter to my amp?
If not, is there a cheap gizmo that I may be able to source on eBay which will allow me to split the HDMI audio signal from the HDMI video signal? Such a shame that they decided to drop the audio port on the 2nd gen.
I'd be very grateful for any pointers from anyone who has any experience with a similar setup.
Click to expand...
Click to collapse
I had similar issues myself with my aftv2, wanting to have digital audio sent to my pioneer av system.
My pioneer av system is hdmi but unfortunately the hdmi part no longer works.
I stumbled upon a thread which advised of a certain gizmo what was exactly what I needed,
Here is the exact device I bought :
Look at this on eBay http://www.ebay.co.uk/itm/250970565434
The only drawback I had with this is its only 1080p, where as the aftv2 is 4k, so your limited to 1080p.
Not too bad as I cant tell much difference.

sconnyuk said:
I had similar issues myself with my aftv2, wanting to have digital audio sent to my pioneer av system.
My pioneer av system is hdmi but unfortunately the hdmi part no longer works.
I stumbled upon a thread which advised of a certain gizmo what was exactly what I needed,
Here is the exact device I bought :
Look at this on eBay http://www.ebay.co.uk/itm/250970565434
The only drawback I had with this is its only 1080p, where as the aftv2 is 4k, so your limited to 1080p.
Not too bad as I cant tell much difference.
Click to expand...
Click to collapse
Oh, ye gads! Thank you so much. Yes, it was madness losing the digital audio on this version, but as long as there's a workaround, I can happily live with 1080p for now (it'll be a while before I can afford a decent 4K projector). A great help.