MHL to HDMI problems - Galaxy Note II Q&A, Help & Troubleshooting

Hi, I have an official MHL to HDMI adapter, a high quality HDMI cable, using an official charger to power the adapter, all plugged in to my Samsung 40" 1080p tv. I'm running Hypernote 0.2.5.
The problem is that it keeps losing signal and therefore cutting out the display. I at first thought it may be the charger cable, despite it being the original it is very loose inside and so I tried another (a nokia one) which although fits perfectly inside the adapter to power it, i am still experiencing cut outs. My phone network signal is low too, it's low in my house anyway but is lower when plugged in to the adapter. Also although my wife does work it seems to be affected too when connected to the adapter.
I've read that disabling data and 3G may help, but I've not seen any improvement. This is really annoying asbim using all official Samsung products and a high quality HDMI cable to avoid problems and unfortunately have ran into problems!
What I may try is perhaps a different kernel, as it doesn't seem to be a hardware problem.
Any suggestions?

tried unplugging the charger?
even if the adapter needed power, it should be able to get enough from your tv and phone.

Thanks for the reply. The charger is required. I first thought that the problem lies with the charger given that with the original charging cable, which doesn't stay firmly in the adapter, upon falling out even slightly it would cut the signal out. Nowbthatcicusee a firmly fitting one the problem still persists. I will be flashing the latest Omega rom, perhaps with Hypernote some essential files have been removed causing instability,. I'll also try Omegas kernel, and then try alternatives as perhaps it's a power issue?
Just seems strange that with all official products I'm experiencing problems, so it must be a rom/kernel issue

I have a similar problem on my galaxy s3. I found that it happened when my treadmill was running. do you have anything like that to cause interference?

Related

Touch screen extremely unresponsive when charging

So when the unresponsive screen when grounded issue came about, I didn't really notice the problem much myself. However, recently, and I'm not sure when this started, the screen has become horribly unresponsive when charging any time! Doesn't matter if it's on desk, in my hand, stock charger, 3rd party charger, etc., if it's charging at all, the touch screen only accepts half or less of my inputs, making typing impossible. Is this due to the last software update? Anyone else experience this issue? I would exchange the phone, but not if it's not going to help anything.
this happens to me when i use my cheap ebay charger
The fps lifting kernels fix this.
+1 for symtoms seen when using a wonky charger/cable.
+1 due to cheap charger - anyone know why this happens? is the OEM usb cable different spec from the cheap ones?
Hate to beat a dead horse, but the same happens when I plug my phone into the charger I got from eBay. Kind of disappointing, considering that I would otherwise be able to charge two batteries at the same time.
I notice this issue with the stock charger.
I believe the issue was when its not grounded..
Being plugged in is just about the most grounded your phone can get.
That's not the problem.
Starting to do it to me also now.
Just to be clear, this happens to me with the STOCK charger.
r546 said:
Just to be clear, this happens to me with the STOCK charger.
Click to expand...
Click to collapse
I'm having the same issue. i just chocked it up to the new kernel.
one thing i did notice is it seems to be intermittent. Yesterday night, it worked fine. this morning(conveniently when my alarm went off) i could NOT get the dismiss thingy to slide down.
Anyone else experiencing this? I do think it got worse after last software update. Would be nice if the next one improved things.
I emailed support, they did not say anything about it being a known issue, and suggested a factory reset. If that doesn't help, they recommended using my warranty. Would like to hear from more people before going through with the reset.
It happens to me when charging via outlet. Charging via USB connected to computer does not produce the issue.
I think it has to do with grounding.
Same thing happens to me! I noticed it with my aftermarket wall charger.
Bringing this back up, happens to me with a Stock charger.
Is it really the kernel? :\
@Person who said charging is the most grounded, the stock charger is not grounded ( in AU anyway ) and therefore it is the LEAST grounded.
ive noticed this happening over the past month or so. i've got to admit i've only really noticed this when its plugged into a usb cord i got off ebay. relieving to think it might only be an issue with it being a cheap cable and not the phone but i'll verify tonight with the stock cable.
I've been plagued by this problem for weeks and just discovered that it only happens when charging. I use the stock charging cable and wall adapter. I'm very, very happy to know what the problem is. I'm going to start testing this at various locations.
EDIT: I've tried this on both the wall adapter at work and on my work computer's usb. Same problem, though it seems worse when plugged into the wall outlet.
The touchscreen is fine on my sprint brand car charger and on the usb charger on my laptop. However, it starts missing taps when I plug my usb cable into my usb car charger. I'm going to best buy tonight to buy a different charger and see if that helps.
Sent from my Virus Infected Evo using the XDA app.
I have these issues as well with the stock charger and cable regardless of which kernel I use.

HDMI Adapter Problems/Flickering Output

Hi
I just recieved my Adapter but something seems to be faulty on this,
when I connect it with several HDMI cables the mirrored picture starts to jitter or the connection break for a few seconds.
The cables are not decoupled and not really expensive, I have no other HDMI device to test them but I dont think that they are buggy.
The TV connected to is a Philips PFL8404
Some suggestions what I'm doing wrong?
The GT is rooted and on stock ROM.
Greets Nighty
i have the same issue. i tried two different hdmi cables and two different hdtvs and the issue is still happening. at this point i think its a defective adapter. Im gonna exhange it.
I had a similar issue back when I had a Xoom (which I ended up returning cause of weight). I am debating over ordering the adapter for my Tab, and if they are doing this, too, then I'd be fairly dissapointing. I always figured maybe the Xoom had a loose connection or the cable sucked, but maybe it's something else?
Got my HDMI adapter for my Galaxy Tab 10.1 yesterday also. It flickers and looses connection so much it useless. I've tried several new HDMI cables, and 3 different TVs. All flicker and blink. I'm sure it's a bad adapter. Will be returned shortly.
i would like to see someone post positive things about the hdmi adapter, have been thinking about getting one, but so far all these posts make me believe that its now worth it?
thanks
recieved a second adapter and still the same, seems to be a problem with the GT itselve or with some drivers build in, may the root crashed something, will trx out.
just ttryed another 40 bucks cable and still the same, dont think thats a hardware fault by the adapter. The only thing I can test now is to unroot to stock. Will test later and update.
UPDATE: Unrooting doesnt work
it doesnt seem like the people with the verizon hdmi adapter are having this issue. I wonder if its made differently?
I just received my adapter from Verizon and I can confirm the same issues so its not related to where you buy it.
Anyone notice what the status of their battery life is when using the adapter? Mine glitched the first time I tested it out and I had just taken the Tab off the charger. I kept getting a notification to unplug the Tab because it had reached 100% charge, which I haven't seen before. When I tried it later in the day it wasn't fully charged and it seemed fine. I haven't had a chance to try it longer than 10 minutes yet so not sure if its battery charging related. I know it doesn't work without a power supply so maybe once the Tabs at 100% it rejects power and cuts the HDMI off. Just a thought, I may be wrong.
I just tried it with 30% battery life and still having the same issue. does anyone have one that works?
Yeah I tried watching a movie on mine last night with about 70% battery and it switched from TV to Tab then back to TV about every 5 minutes.
I don't have an HDMI out cable, but I was wondering if you guys were plugging the charger into the HDMI, or if you were using it without it. I'm curious because I saw a review about it stating they needed the Charger to be plugged into the HDMI to get it to work.
mtran2988 said:
I don't have an HDMI out cable, but I was wondering if you guys were plugging the charger into the HDMI, or if you were using it without it. I'm curious because I saw a review about it stating they needed the Charger to be plugged into the HDMI to get it to work.
Click to expand...
Click to collapse
yhea thats right you have to plug the wall charger in otherwhise it wont display anything at all, our problem is the faulty result whats on the screen
Wow. I was just about to order the HDMI adapter from Sammy (I stubbornly kept waiting for BestBuy or Verizon to get one in stock). But seeing all these problems, I wonder if they're having quality or other issues, and hence why it's not hitting shelves yet.
Does anyone have a feel for whether all seem to be defective, or if these posts are more representative of the adapters that are defective? (guessing from those saying they've tried more than one, that there seems to be a general problem with the adapters).
Okay I have a 10.1 galaxy tab wifi and a home made dock from a 7 inch tab and 10 inch tab dock. Using the oem power adapter that came with my tab. With my hdmi dock I watched a movie on amazon instant via the browser And I rented a movie from google. Both movies played perfectly through my 50 inch plasma tv via the hdmi dock.. I can tell you that movies would not play from google untell touchwiz update. but after the update I have had no problems whatsoever playing any content via hdmi. Also I don't know if it makes any difference but I have never rooted my tab. Good luck guys I don't know what's going on I hope you figure it out.
Hey mopar. Is your tv a 1080p? Both my hdtvs are 1080i so im wondering if thats causing the issue. I think i read somewhere that this tab outputs in 1080p. I dont think its the video player because it cuts in and out without running any programs. Its like every 30 seconds the tv screen will cut out go black and then come back on. its basically useless.
I believe my tv is the lower of the 2 not sure though.... it's definitely not a high end tv but it is new..w
my tv is a 1080p
I just got the adapter today and haven't had any problems with it so far
I just got the 7 " docking with HDMI out and it works like a charm, so it seems to be a production problem with the adapters. Brought me the 10.1 dock to put the piece on the 7 " base.

MHL to HDMI problem resolved

Since I couldn't find any solution to my problem anywhere, I thought I'd post my solution here in case someone encounters the same or similar problems.
First, the problem: When my Galaxy Nexus is connected to my TV, using the samsung mhl-to-hdmi adapter, it loses connection at times. These problems get worse when the battery is low. It seems like the charger cannot support both the HDMI and the phone at the same time.
Resolution: My TV happens to be located in an area of my appartment with particularly bad reception. It appeared to me as if the disconnects happened whenever the phone was searching for a network. When the phone is in airplane mode the disconnects no longer occur, even if wifi is active. I haven't yet checked if it is enough to just switch off 3G, but it works and I'm very happy with it.
Activate airplane mode in Settings > Wireless & Networks
If you wan't to have wifi, just turn it back on.
I will have to test this theory
I have read that with the MHL adapter it works much much better to have your phone charging at the same time.
lowandbehold said:
I have read that with the MHL adapter it works much much better to have your phone charging at the same time.
Click to expand...
Click to collapse
The MHL adapter is supposed to charge your phone through HDMI. Not sure what you're trying to say here.
Simply Awsome Help
internot said:
Since I couldn't find any solution to my problem anywhere, I thought I'd post my solution here in case someone encounters the same or similar problems.
First, the problem: When my Galaxy Nexus is connected to my TV, using the samsung mhl-to-hdmi adapter, it loses connection at times. These problems get worse when the battery is low. It seems like the charger cannot support both the HDMI and the phone at the same time.
Resolution: My TV happens to be located in an area of my appartment with particularly bad reception. It appeared to me as if the disconnects happened whenever the phone was searching for a network. When the phone is in airplane mode the disconnects no longer occur, even if wifi is active. I haven't yet checked if it is enough to just switch off 3G, but it works and I'm very happy with it.
Activate airplane mode in Settings > Wireless & Networks
If you wan't to have wifi, just turn it back on.
Click to expand...
Click to collapse
A Million thanks to you dude. You made my day. I would have definitely given you one strong hug if you were anywhere near me.
I bought a brand new Samsung MHL and a High Speed HDMI two days back, only to find frequent disconnection and white noise. Happened every few minutes. Tried everything and was so freakin sad that I can't tell. Searched thoughout to find a solution. No go. Neither XDA nor google had the answer.
And then finally stumbled upon this thread.
And its exactly what was happening to my galaxy SII. I was in a place of low reception where 3G strength was bad. Never thought of this to be a problem.
But finally I read, I followed, I implemented and there I am.
Extremely satisfied with my purchase and my SII. It was back up and roaring on the big screen clutter-less now.
Thanks again dude!!!
Just one thing. What do you think is the relation between the HDMI output and network strength?? Is it supposed to happen or is it a fault(H/W or S/W) ?
purebishop said:
The MHL adapter is supposed to charge your phone through HDMI. Not sure what you're trying to say here.
Click to expand...
Click to collapse
MHL adapters include a side port for charging your phone. When your phone is displaying itself through HDMI it drains battery faster than this 'HDMI charging'. If your MHL adapter doesn't include this, I suggest buying a new one. $7 on eBay.
lowandbehold said:
I have read that with the MHL adapter it works much much better to have your phone charging at the same time.
Click to expand...
Click to collapse
I believe that for most (all?) MHL->HDMI adapters, you HAVE to plug it in.
In MHL mode, the phone is set up so that it is able to receive power (charge). The MHL->HDMI adapter needs power to run. Since it can't get power from the nexus (because the nexus is set up to receive power, not provide it), it needs to be plugged in via the side micro-usb port. So far, all the adapters I've seen/heard of are this way.
Hypothetically, I suppose that the MHL->HDMI adapter could be battery-powered or have a different plug to provide power - or it might only power itself and not the phone. I've never seen one like that, though.
purebishop said:
The MHL adapter is supposed to charge your phone through HDMI. Not sure what you're trying to say here.
Click to expand...
Click to collapse
I believe you are mistaken. First off, the maximum power capable of being supplied over HDMI is 50mA - well below the charging requirements for the Nexus. Secondly, the device you're connecting the Nexus to (TV/Monitor) is a sink device which does NOT provide power (unless MHL compliant?) to the source (Nexus). Thus, most (all?) MHL adapters provide the option of connecting an external power supply to charge the device.
To the OP, thanks for this info! My friend had issues with his and this could very much be the issue, the low signal is causing too much power draw for him.
Since I live in an area with very strong signal, that would explain why I never saw it.
cwoggon said:
I believe you are mistaken. First off, the maximum power capable of being supplied over HDMI is 50mA - well below the charging requirements for the Nexus. Secondly, the device you're connecting the Nexus to (TV/Monitor) is a sink device which does NOT provide power (unless MHL compliant?) to the source (Nexus). Thus, most (all?) MHL adapters provide the option of connecting an external power supply to charge the device.
Click to expand...
Click to collapse
I wouldn't call the micro-USB portion of a MHL adapter an option, more a requirement.
mutelight said:
I wouldn't call the micro-USB portion of a MHL adapter an option, more a requirement.
Click to expand...
Click to collapse
Ah, yes - good point.
I just got a brand new MHL adapter and cant get it to work at all. Beginning to think I got a DOA one.
I am going to try your solution to see if it helps, but I have good reception in my house.
When I connect mine, with power attached to the adapter, I get nothing at all on my TV, and the phone does nothing either. What could be wrong?
WACOMalt said:
I just got a brand new MHL adapter and cant get it to work at all. Beginning to think I got a DOA one.
I am going to try your solution to see if it helps, but I have good reception in my house.
When I connect mine, with power attached to the adapter, I get nothing at all on my TV, and the phone does nothing either. What could be wrong?
Click to expand...
Click to collapse
Does your TV support 1280x720 over HDMI?
Awesome! I've tested this last night and didn't get any flickering of image when using my MHL to HDMI. The flickering would happen every 30 min or so sporatically...
FYI- your phone does not get charged through HDMI cable. You need to plug in power to the MHL connector to even use it which charges it but having the screen on at all times causes the battery to slowly drain. I usually just dim my screen down as much as possible to savage what I can. The drain is very minimal ~ 2% per hour with the type of MHL cable I purchased. (Menotek Micro USB to HDMI MHL Adapter IMPROVED WITH RCP- purchased on Amazon)
I know it's an old thread, but has anyone else tried bumping the CPU minimum up to 700mhz? I am going to do this tonight, airplane mode did work for me but I am currently looking for away to get HULU and Netflix working and I need the data connection.
Thank you so much, it works. Anyway, is there a way to have data connection and mhl at the same time?
I'm having problems connecting mouse through usb on the go.. when I try to connect my phone turns off and then it takes so much time to start?? any suggestions?
Would it matter if you just turned off mobile data or do you need to go airplane mode
epic4grooted said:
Would it matter if you just turned off mobile data or do you need to go airplane mode
Click to expand...
Click to collapse
Try it for your self, but if you are using any of the newer ROMs with the new DDK1.9, it doesn't support MHL.

Slow charge

Hello xda members, i have been experiencing a problem on my tablet Samsung Galaxy Note 10.1 (2014 Edition) Android version 4.3 since the past month. It does not charge as usual and a red cross pops up on my battery icon indicating slow charge. I don't know if it's the adapter or usb cable which is causing this, but I tried a set of new charger and cable ( Sony brand ) and still I get the red cross.
What do you advise me to do?
Do i install an app from the store to check if my battery is causing this or do I need to try charging it with a new original adapter and usb cable?
Thank you and awaiting your reply.
The red cross only indicates that the tab is not recieving enough power and even if energy is coming in, it is not enough to charge while using. Understanding this, anything can be cause for the current not being enough:
The adapter could be damaged.
The adapter you are using is not the samsung one and thus is giving less Amperes(Out tab needs 2A and most adapters give 850A-1A).
The cable is damaged.
The cable you are using is not prepared to transport 2A.(This happens to me with the chromecast ones)
The microUSB port on the tablet is damaged. An indicator may be the tablet overheating like crazy when charging but this is not probably because when this happens the device, in most cases, takes energy or not.
I personally find that the cable, if you are using samsung's adapter, is most commonly the problem. Using a cheap cable or a damage cable causes this for most of the tabs I have known.
Hope this helps.
Pazzu510 said:
The red cross only indicates that the tab is not recieving enough power and even if energy is coming in, it is not enough to charge while using. Understanding this, anything can be cause for the current not being enough:
The adapter could be damaged.
The adapter you are using is not the samsung one and thus is giving less Amperes(Out tab needs 2A and most adapters give 850A-1A).
The cable is damaged.
The cable you are using is not prepared to transport 2A.(This happens to me with the chromecast ones)
The microUSB port on the tablet is damaged. An indicator may be the tablet overheating like crazy when charging but this is not probably because when this happens the device, in most cases, takes energy or not.
I personally find that the cable, if you are using samsung's adapter, is most commonly the problem. Using a cheap cable or a damage cable causes this for most of the tabs I have known.
Hope this helps.
Click to expand...
Click to collapse
Thanks for replying mate, actually I'm using both original samsung adapter and cable which came in the box.. I will be heading to some shops looking for a Samsung cable and see whether it resolves the problem or not.. What is weird is that sometimes it has the red cross and sometimes it doesn't. Yesterday evening it was slow charging and this evening it was normal charging.
nayazdragneel said:
Thanks for replying mate, actually I'm using both original samsung adapter and cable which came in the box.. I will be heading to some shops looking for a Samsung cable and see whether it resolves the problem or not.. What is weird is that sometimes it has the red cross and sometimes it doesn't. Yesterday evening it was slow charging and this evening it was normal charging.
Click to expand...
Click to collapse
It happened to my brother, he changed cables and changed from light socket and he said he had no more problems; he also may have cleaned the usb that goes into the adapter; ol' "blowing nes carthige" style. I would recommend getting a Q-Tip with alcohol and cleaning every metal part you see in your cables, speacially the 4 metal bands inside the male and female usb port from the adapter and the cable(remember to let it dry before pluggin it again).
BTW, it must be a good cable but it is not necessary for it to be a samsung one. If you have a good phone around and can use that cable, it should be fine(I use a motorola defy one which had a 850mA adapter and it works marvelously; "meh" cellphone but the accesories are darn good), just dont use other adapters because of the Amperage difference.
Also, if you are using any kind of extensions, specially usb port extensions, don't. They are a sure culprit of the problem you are experiencing. I dont know why but these cheap electronics really affect the energy passing through; maybe its the cheap copper or bad solder.
@Pazzu510 "Blowing nes Cartridge style" - Aaaahhh good old days
Sent via Note 10.1 2014 Edition on Tapatalk

Dex keeps connecting/disconnecting... S20+ Exynos

My phone does that when using a USB hub with HDMI, it does work with my friends S20+
What can it be?
anykill said:
My phone does that when using a USB hub with HDMI, it does work with my friends S20+
What can it be?
Click to expand...
Click to collapse
Dex needs a Knox-App called "KnoxDesktopLauncher" in /system/priv-app/. Make sure its on your device. Maybe you have deleted it.
Not sure if related, but today I noticed similar issue on my regular S20 with USB-C earphones, they kept connecting and disconnected, which resulted in media pausing, and audio playing through loudspeakers. Wiggling USB plug gently, and phone recognized earphones, only to lose connection shortly against.
Gently Wiggling USB connector in all directions, including pushing it deeper, and pulling it towards yourself, reproduced the problem everytime, which leads me to believe the USB-C port is broken.
This is strange. My phone is just around 4 moths old, I very rarely use USB-C earphones, and last time I checked (around a month ago), everything worked fine. The only thing I plug on a daily is a charger, never in a car, or in any place where port might be stressed.
The reason why I noticed this issue only today, is because I wanted to listen to some music, and had AKG USB-C earphones laying close to me.
USB-C charging cable managed to break the port, in such a short time, just wow.
By the way, charging works fine, USB is acting up only when data transfer is involved.
So check with other USB-C devices, maybe your port is also broken. Plug bundled AKGs, play some music, and wiggle plug gently, music will pause if connection lost. Also you'll see headphone symbol flashing in and out.
I think people might not notice this issue, because pretty much everyone I know switched to wireless, so this can remain unnoticed for months, or longer.
And what's the case with root? I've rooted mine with magisk and since then Dex only connects/disconnects... Is there any option to get it working on a rooted device?
Same problem here, not Dex (i don't use it) but with charging.
It keeps connecting/disconnecting while charging if I move the cable. Really annoying.
It sometimes also charges slowly or not at all while it does say it is connected...
agieja said:
Same problem here, not Dex (i don't use it) but with charging.
It keeps connecting/disconnecting while charging if I move the cable. Really annoying.
It sometimes also charges slowly or not at all while it does say it is connected...
Click to expand...
Click to collapse
I think our phones have broken USB-C ports, and also, after reading many reports, starting to believe that S20 series phones have a weak port design. I'm very gentle with my tech, so at least in my case, it's either manufacturing problem, or a bad port design.
From what I gathered online, first symptoms of a failing port are problems with anything data related, like in my case, USB-C earphones connecting/disconnecting causing media to pause, then problem becomes more severe, when it's not just media pausing, but phone losing data connection entirely, resulting in complete connection loss to a peripheral, when you have to wiggle plug to reconnect, only to lose connection again shortly after, and finally, these data issues lead to charging issues, like ones you describing, connection loss to a charger, appearance of charging.
I still have around 20 months of warranty left, but sadly right now need my phone badly and have so much data that I need to back up, so warranty is not an option, at least for now, I have to buy wireless charger, in case USB-C port fails entirely. S20 keeps disappointing me.. Sigh.

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