Develop Bugs

MHL & USB host

Anyone know if it's possible to use MHL in conjunction with a microUSB to USB host adaptor to output to HDMI and access an external USB drive at the same time? That'd make the SGS2 an amazing portable media unit.

No, it is not posible. Its an either/or connection to the micro USB port.
Shame, because as you say that would really be a great thing. MHL consortium are considering a number of improvements to the 2.0 MHL spec, so in future devices this may be a possibility.

So MHL can't be used when I'll plug a USB-Hub?

No, sadly not.
It's a shame - for now I'd prefer micro USB & separate HDMI port so USB can be utilised as well as an external display.

As would I, and a lot of others I suspect.

But you've got 16 GB memory and can copy your stuff to the memory and watch it later via MHL on your Flat? So this is not a big problem, I think

s60mike said:
But you've got 16 GB memory and can copy your stuff to the memory and watch it later via MHL on your Flat? So this is not a big problem, I think
Click to expand...
Click to collapse
Yes, but 16Gb of FAT32 and you can't copy a file > 4Gb

I would use allshare to stream the movie or whatever to your phone from a laptop and connect the phone to TV via the MHL HDMI adapter...that way you have access to ur laptop's data without being hardwired to it

chizzwhizz said:
I would use allshare to stream the movie or whatever to your phone from a laptop and connect the phone to TV via the MHL HDMI adapter...that way you have access to ur laptop's data without being hardwired to it
Click to expand...
Click to collapse
Yes, it helps only if your laptop can't play smoothly a HD video

Has anyone got a generic MHL cable to work with the galaxy s 2 yet?
Sent from my GT-I9100 using Tapatalk

lufcmattylad said:
Has anyone got a generic MHL cable to work with the galaxy s 2 yet?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Not that I'm aware of...

I bought one from Ebay and can't really do anything good with it. Display shows briefly for 3-4 seconds on TV then disappears again. Don't know why.....I hope it's not the device itself because I tested 2 phones, they were bought at the same time, but none of them would work correctly....

If by generic you mean a not samsung one or one not dedicated to the SGS2 then i actually use a one, from ebay or someting like that, everything works perfect you just cant forget to plug power to it, and about the not working one, it seems mine gets jammed by gsm signal (i.e. when receiving a call), so from time to time the image disappears in a blink of noise, maybe that is your problem too, try it in airplane mode.

Oh, I think I misread that question - I have actually used a generic one with my SGSII (a prototype from the MHL consortium) and it worked fine!

chizzwhizz said:
I would use allshare to stream the movie or whatever to your phone from a laptop and connect the phone to TV via the MHL HDMI adapter...that way you have access to ur laptop's data without being hardwired to it
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Click to collapse
No, you can't, when the MHL is connected, the WiFi stops working, I regret not having bought the Optimus 2x

erebocln said:
No, you can't, when the MHL is connected, the WiFi stops working, I regret not having bought the Optimus 2x
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Click to collapse
Uhm no. I've been streaming with WIFI through MHL no problem for MONTHS. Using the Original Samsung MHL connector of course.

I have to put mine in offline mode to be able to use the MHL adapter.....
As for USB-OTG no luck yet.....

On Amazon, Ebay, DealExtrem ... you will find adapters that can do 3 things at a time:
- output HDMI
- let phone work as usb host, so that you can plug kbd, mouse, and external HDD (second wifi card, wired ethernet ...); once you have the usb A plug, just pub a hub
- recharge the phone (what is not possible with the legacy short OTG cable).
+ read memory cards
Such devices are sold as MHL devices. Some MHL devices don't to all that.
Take care. MHLv2 is more complex than MHLv1.

doublehp said:
On Amazon, Ebay, DealExtrem ... you will find adapters that can do 3 things at a time:
- output HDMI
- let phone work as usb host, so that you can plug kbd, mouse, and external HDD (second wifi card, wired ethernet ...); once you have the usb A plug, just pub a hub
- recharge the phone (what is not possible with the legacy short OTG cable).
+ read memory cards
Such devices are sold as MHL devices. Some MHL devices don't to all that.
Take care. MHLv2 is more complex than MHLv1.
Click to expand...
Click to collapse
Could you post a link as an example for such a device, that works properly (if you've tested, or you know it works) ?
Thank you

I can post links, but ... I have not tested any of those. And don't know any one personally who tested it.
Cable:
http://www.amazon.com/Juiced-Systems-MHL-Adapter-MicroSDHC/dp/B008CQKM2U
http://www.dx.com/p/5-in-1-micro-us...n-micro-usb-adapter-black-257780#.U8HYDNePul0
Monobloc:
http://www.ebay.fr/itm/Micro-USB-Ho..._MobilePhoneDataCables_JN&hash=item258600844e
I don't like the monobloc version; I fear it's too heavy, and may help breaking the phone plug.
There are all sorts of OTG and MHL cables. I have seen OTG dongles as short as 4cm (monobloc), with small cable (8cm: 4-8€), with long cable (1.5m .... should be 7 feet), pure HDMI (passive cable, no card reader, 8-12€), VGA (including very cheap HDMI to VGA converter, 20-30€ ... including sound output). In some case, you need to buy accessories (extra power supply, extra uUSB cable, extra HDMI cable). Also seen a very cute hybrid card reader: http://dx.com/p/285865 (I love this product design, and I love this URL syntax )
Don't forget that there can be mistakes in item description.
Here I have described how to build an external battery:
http://forum.xda-developers.com/showpost.php?p=54036759&postcount=17
On previous phone, I just soldered additional battery to internal one; on my new phone, I will do something more complex, and more flexible.
Loosing power via OTG/MHL is not a fatality. Most phone have an other hidden power input:
généric, that uses the USB plug:
http://www.dx.com/p/reverse-qi-wire...arger-receiver-for-micro-usb-cellphone-312805
TRIPLE CHECK POLARITY; I took the wrong one; have to fold the cable.
So ... even if your OTG/MHL module takes power from your USB, and can not recharge your phone, the specific shell can charge your phone the other way So, you need to build an internal specific module:
https://www.youtube.com/watch?v=UK7PRJ4SiK0
S2 specific back shell, so called receiver:
http://www.aliexpress.com/item/2013-newest-wireless-charger-for-samsung-galaxy-s2/1266101036.html
http://www.exportprive.com/en/batte...reless-charger-set-for-samsung-galaxy-s2.html
http://www.alibaba.com/product-detail/QI-Wireless-Charger-for-Samsung-Galaxy_821969998.html?s=p
The SGS2 is not designed to accept wireless chargers, so, you have two options:
- solder and take the pins out (cf youtube) (do not solder coild to battery, or you could overcharge the batt, and burn your phone ... I mean, physically set fire)
- find an item that includes back shell + specific battery (exportprive)
Many recent phones have the internal connectors, so you just need to change the back-cover. In this case, the software will be able to know the charger is wireless (as opposed to AC, and USB; advanced battery tools will show those 3 possibilities). I believe the motherboard for my HTC One M8 is designed to have those pins, but I can't find the specific cover yet (maybe in a few months); only found it for M7.

MHL MicroUSB to HDMI Adapter **VIDEO INSIDE

I bought the Samsung MHL adapter through Amazon - Samsung MHL Adapter and I must say this has been of the best inexpensive purchases you buy for your Galaxy Nexus. I decided to make a quick video to show you how great it works, please enjoy!
CLICK HERE TO WATCH VIDEO

The MHL adapter is using full hdmi cable or mini hdmi ?

thanks for the heads up. I may have to get one of these.
Sent from my Galaxy Nexus using XDA App

Thanks for the video, it is really cool.
When I had my G2x with micro HDMI out, I bought all kines of cables to plug it into the TV from the comfort of my bed, and I really only used once or twice.
Maybe in the future I'll buy it but I think it will end up in my cable's cabinet.
gogol said:
The MHL adapter is using full hdmi cable or mini hdmi ?
Click to expand...
Click to collapse
Full HDMI
10chart

gogol said:
The MHL adapter is using full hdmi cable or mini hdmi ?
Click to expand...
Click to collapse
It uses full HDMI

sstang2006 said:
Maybe in the future I'll buy it but I think it will end up in my cable's cabinet.
Click to expand...
Click to collapse
I think people who travel or game more will use it. I hook my phone up to hotel rooms to watch Netflix and my dish network programming/dvr. Gamers may want a bigger screen.
Sent from my Galaxy Nexus using Tapatalk

How does this play out with USB host mode in Android?
Do I need another adapter for host mode? Or can I use this one while I also have HDMI out?
http://www.amazon.com/Menotek-Adapt...1?s=electronics&ie=UTF8&qid=1325341220&sr=1-1
This one seems to be "certified" for the Galaxy Nexus and also has a charging port to use while doing HDMI output. Does the Samsung adapter come with this?
I'm most certainly interesred but I want more details before shelling out money, even if it's small money
Edit: Looked at the video and I see the USB port there. Still though, how does this play wtih USB host? Do I even need an adapter for that?

Using the HDMI adapter and playing games with a controller can only be done with a bluetooth controller? Is there any way I can use HDMI and a USB PS3/360 controller?
(using the PS3 wireless is not a option for me i cannot get the app and phone to work together)

josteink said:
How does this play out with USB host mode in Android?
Do I need another adapter for host mode? Or can I use this one while I also have HDMI out?
http://www.amazon.com/Menotek-Adapt...1?s=electronics&ie=UTF8&qid=1325341220&sr=1-1
This one seems to be "certified" for the Galaxy Nexus and also has a charging port to use while doing HDMI output. Does the Samsung adapter come with this?
I'm most certainly interesred but I want more details before shelling out money, even if it's small money
Edit: Looked at the video and I see the USB port there. Still though, how does this play wtih USB host? Do I even need an adapter for that?
Click to expand...
Click to collapse
to ppl with questions, i got the official samsung gs2 mhl adapter. its 11$.
http://www.ebay.com/itm/230721222527?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
works wonders. i am 4.0.2 stock.
it uses full hdmi. 1$ on ebay.
it has a charging port, but it shows plugged in as usb charger even when plugged into the wall. it only draws enough power to power keep the charge constant, that is your battery does not go down, nor does it go up. and no, you cannot connect usb host when watching in mhl mode. would have been cool, but doesnt work.
One more thing, apparently THE PHONE HAS TO BE PLUGGED IN FOR THE MHL ADAPTER TO WORK. So, unless you plug in the charger, the mhl adater wont give output.
i hope i answered all questions.

OMG I need me on of these. It's not a Amazon prime item so that mean I have to pay for shipping lol.

nice!
Which program you using for the emulators and to sync to wi mote
Sent from my Galaxy Nexus using XDA App

psycho2097 said:
to ppl with questions, i got the official samsung gs2 mhl adapter. its 11$.
http://www.ebay.com/itm/230721222527?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
works wonders. i am 4.0.2 stock.
it uses full hdmi. 1$ on ebay.
it has a charging port, but it shows plugged in as usb charger even when plugged into the wall. it only draws enough power to power keep the charge constant, that is your battery does not go down, nor does it go up. and no, you cannot connect usb host when watching in mhl mode. would have been cool, but doesnt work.
One more thing, apparently THE PHONE HAS TO BE PLUGGED IN FOR THE MHL ADAPTER TO WORK. So, unless you plug in the charger, the mhl adater wont give output.
i hope i answered all questions.
Click to expand...
Click to collapse
Wow. So emulator+wifi+bluetooth+mhl= dead phone. 500ma is not enough to keep the GN floating.
Seems like a huge oversight on Google's part or perhaps it's just a MHL limitation. I know data does not work, which is why people have to use BT. But 500ma, what a joke.
Can anyone else confirm this?

Awesome video and post, thanks!!
Does the MHL to HDMI work with Android Movies? I know on my stock Transformer TF101 HDMI out is blocked in Movies. ...worked fine for Netflix and others though.

As far as battery is concerned. Would it be possible to program the screen to turn off when viewing in HDMI and still view it on the TV? seems like this would cut battery consumption dramatically. If not you could set the screen brightness to as low as possible.

Thanks man! Gonna buy this ASAP

MK17 said:
As far as battery is concerned. Would it be possible to program the screen to turn off when viewing in HDMI and still view it on the TV? seems like this would cut battery consumption dramatically. If not you could set the screen brightness to as low as possible.
Click to expand...
Click to collapse
Battery drain seems to be corroborated here too:
http://forum.xda-developers.com/showpost.php?p=20128751&postcount=36
What a downer.
Great minds think alike though:
http://forum.xda-developers.com/showpost.php?p=20156851&postcount=46
So it looks like the only option is to use some sort of dual charging situation where one charges the MHL adapter and the other charges the phone via pogo.
Perhaps the native HDMI doc allows AC charging? I guess we will have to wait and see.

MHL + OTG possible?

As in title, is it possible to use MHL with OTG?
I mean like that : Phone->MHL->OTG, MHL need power to work from what I know, so what about mircoUSB Y cable-> MHL + OTG?

Negative friend. It does not work. Even if you have the connecters, the micro USB can only act as one or the the other at a time.
Thats the ONLY reason I bought an apple magic trackpad (the only bluetooth peripheral with pinch to zoom, yada yada), to control gnex when its pushing mhl to tv. See living digitally for a demo.

But does the device charge, when connected to MHL adapter then?

Yes, the MHL adapter needs to be plugged into a microUSB to function, it does power the phone. And if you are only pushing HDMI out, it should charge.
I have a fast charge ROM&kernel, so it will charge even if using hdmi, bluetooth, dowloading torrents....

Thank you, I just asked, as I will soon get the device, for now I only ordered the extended battery, and desktop dock. Not really want to use the usb port too much, also I dont know if I will need hdmi, btw, the hdmi dock have a usb port, but the dock not mirror the screen, only good for videos, and photos, so maybe it can use otg? I'm not sure, if the usb port only for charging, but again, it not use hdmi all the time, also I guess no good for games, mhl sucks guys, why couldnt they use separate hdmi, like motorola?

Not 100% sure, but I think the USB in the dock is only for charging, check out the reviews.
As for single port, I believe the Gnex, being google's vision for the fututre, is ahead of its time. Its supposed to be all wireless connections soon. Google Smart TV, bluetooth 3 & 4, WiDi, NFC.... see the trend. I'm suprised there are fewer bluetooth peripherals.
I would look at the next motorola phones to see where the future is going...

Cables to use phone as desktop?

Hi folks,
As I understand it, the Glide supports both HDMI out and USB On the Go. What I'd like to do is set up my phone to be a basic laptop.
The first part of my plan is to get the right cables. Does anyone know of a combo cable that provides both HDMI female and USB A female to the phone so I can hook one end up to a powered hub with an ethernet dongle and keyboard/mouse thing, and at the same time hook up an external display? Also, if I do this, I assume the hub will need to provide power in some way back to the phone. Is that correct?
Or is this going to be so expensive I should just use a cheap computer?
Thanks.
Jonathan

fighttheangrybunny said:
As I understand it, the Glide supports both HDMI out and USB On the Go. What I'd like to do is set up my phone to be a basic laptop.
The first part of my plan is to get the right cables. Does anyone know of a combo cable that provides both HDMI female and USB A female to the phone so I can hook one end up to a powered hub with an ethernet dongle and keyboard/mouse thing, and at the same time hook up an external display? Also, if I do this, I assume the hub will need to provide power in some way back to the phone. Is that correct?
Or is this going to be so expensive I should just use a cheap computer?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1633902&highlight=hdmi ?
Assuming a computer on site, you could always vnc.
From past experience with other PDA's, you will -quickly- grow tired of this and end up purchasing a laptop anyways.
Not that you'd want to be internet'ting, much, on a TV, either. For anything short of a quick search, weather, TV guide, you're going to want to cross the room to your laptop, IMO.
Which is probably what you'd have your HDMI connected up to, anyways. Although using the Glide as a remote in that situation is probably attractive. Or as an XBMC control sort of thing, but, again, likely the content would come off the computer rather than the glide, the glide just remotely controlling it.
You can easily test how you find this, either by using a bluetooth keyboard and playing (never mind the external screen for the moment), or by vnc'ing to it from a computer (pretend it's a bluetooth keyboard and it's an external monitor, for the moment).
Technically possible, not practically feasible.
Chromebook?

Just get cheap laptop. It will serve you better and will be much easier to use
Sent from my SGH-I927 using xda app-developers app

ubuntu
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HDMI out is supported by the SoC, but to the best of our knowledge those pins aren't actually connected to anything in our phones. That said, there's a protocol for outputting to an HDMI device via a USB dongle that doesn't require any hardware infrastructure beyond USB OtG, which we have.
In theory, you could get a powered USB hub (it MUST be powered, no way in hell the phone can put out enough current to support all this), plug a keyboard and mouse into it along with one of those USB-to-HDMI dongles, then hook the phone up to it as a host using an OtG cable. At that point it's just a matter of ROM/kernel support of all the peripheral hardware. (Ask dman? Nah, I'm sure he's WAY too busy.)

If you are just using it for media as like an htpc, I'd reccomend skipping all the usbotg stuff and just connecting a net book or some other cheap PC to your display.
My current setup: old netbook with 1tb external hooked into TV, controlled by the glide (unified remote app) and the external drive is also network shared so my glide (and tablet) can read from it.
Its served me well for playing all of my local video files as well as flash video and light browsing. Depends what you're using it for though, I suppose.
The only time I've ever really used HDMI out with android is to play n64 emulators (or other games that support a bt controller) or if my girlfriend is watching desperate housewives or something on the main setup. It works well enough for that, but not enough that I would make a habit of it.

Connect galaxy a70 to external monitor with type c to hdmi adapter

I would like to know if galaxy a70 supports connecting hdmi monitor via usb type c to hdmi adapter or with any usb type c dock to external monitor. I want to mirror via type c cable and i am aware that there is no dex support for a70.
Can any one tried this? I don't have usb type c to hdmi adapter or type c dock to try this and wanted to buy if this is supported.
Thank you.

ssurampu said:
I would like to know if galaxy a70 supports connecting hdmi monitor via usb type c to hdmi adapter or with any usb type c dock to external monitor. I want to mirror via type c cable and i am aware that there is no dex support for a70.
Can any one tried this? I don't have usb type c to hdmi adapter or type c dock to try this and wanted to buy if this is supported.
Thank you.
Click to expand...
Click to collapse
yes, i tried just few minutes ago connecting my device to computer but it's not supporting it's very weird Samsung not makeing stable update now days and i have ghost touch problem

Ok. This is bad. I was expected at least screen mirroring via cable on a70 but didn't happen.
I got dell usb type-c adapter and tried connecting hdmi cable to external monitor.
Nothing shown and nothing was detected except saying some usb device has connected.
For this price, should expect these minimal futures in the phone.
I don't recommend this phone even for camera and samsung one ui. Still sony fan so installed xperia home launcher even though it is not working properly.
Bluetooth is breaking a bit with head phones.
audio for receiving calls is poor.
Overall for this price, it is not a good product.

Hardware of Software
Is this a hardware feature or can be fixed with software update???

Tried it too. Doesn't work
I bought a Type C to HDMI converter. It worked on a samsung a30, note, but not on the A70. I should have gotten the cheaper A50. Might have worked there!

Can anyone update us? Is this a software or hardware issue? Has anyone successfully got it to work?

I think get a chromecast device and use screen mirroring feature in google home app and you will get a more convenient wireless display !!!

I think everybody knows about chrome of course but u end up using urr mobile hotspot data which is never unlimited like the unlimited data u can get reasonable an the point is cellphone distributers should include Mhl because its free to watch anything on your phone an it doesnt use up ure wifi I think carriers are catching on and are fishneting with cellphone distributers n there trying to ban it or make it obselete because they will lose money think about it watching all the movies u want from your phone and mivie channels unlimited with Mhl hdmi.an it sucks itvreally does.cause u either have to spend a fortune getting a device with mhl or the mid range nice cell phones with bigger screens normally dont have mhl

Maybe you have to use the official Samsung one - https://www.mobilefun.co.uk/official-samsung-galaxy-a70-usb-c-to-hdmi-adapter-74551

A70 connectivity problem
That's because its usb C 2.0 only the mobiles with 3.0+ can connect to HDMI

Can you charge through a USB Hub though?

Queried this with Samsung, and this was their response. Sadly it's a no go!

For this price, they should have given usb 3.0 or higher.
Store keeper told that it is possible but later i understand that meant screen mirror.

Can a custom rom add support for this?