I've got a Samsung Tab S7+ and an LG usb-c display.
I used to have no issues plugging my tablet in and having it display on the screen. I'd then have access to mouse and keyboard which are connected to the display. Now the tablet doesn't even recognise the display (it just charges its power). The display doesn't recognise the tablet as sending a video signal. Turning Dex on/off doesn't help and neither does restarting.
I think this must be to do with an update. Can someone help?
Since no one replied..... here is a tip: I could use the tablet with the usb-c ultrawide display with the right usb-c to usb-c cord. I have two ultra-wide LG monitors (one at work and one at home). One cord that came with one monitor didn't work on either monitor. The other cord works on both!!
A usb-c hdmi adapter worked, but it was much less convenient given I already have mouse/keyboard..etc already in the monitor usb ports.
Related
I bought the ADAM elements CASA H01 USB Type-C to HDMI Adapter Gold, I tried connecting HDMI to my S8, S8 says HDMI connected but the TV has no response. I am sure the TV works with HDMI as I tested my XBOX on it. Is there anyway to make it work? Or is my adapter broken?
you can try things like switching the tv off/on and the phone off/on whilst its connected. sometimes, not often, that will help
it sounds like hdmi handshake issues. basically a compatibility problem between the phone and the tv.
Thank you for the suggestion, I tried but still doesn't work. If it's a problem between the phone and tv, should I try the adapter on other tv?
I used Choetech USB C to HDMI 60HZ cable to my S8. Everything worked well. https://www.amazon.com/CHOETECH-Thunderbolt-Compatible-MacBook-ChromeBook/dp/B06XP9NV4G/ref=sr_1_5?ie=UTF8&qid=1495422430&sr=8-5&keywords=choetech+HDMI
I had some HDCP issues when I tried connecting my S8 to a capture device, but that was due to a poor quality cable.
Make sure your device can read the HDMI signal coming from the phone too. It appears to send 1080p or higher, so if your device only understands 720p (some smaller TVs are like this) it might not be able to see the signal from your phone.
I'm having same issue hubbies works mine won't same cord and tv???
Any idea what's going on I just factory reset my phone and still doesn't work
I just got an hdmi to USB c adapter today as well and I first connected it it did not recognize my phone either. The thing that seamed to do the trick was attaching the adapter to my phone first without the hdmi or power cord, then powercord then connecting the hdmi cord and all works well
still not repaired
4 repair invoices 3 months and still not repaired currently on hold with Samsung .... i'm not impressed as this feature was a huge decision for buying the S8+
i use baseus usb-c to hdmi cable - all work good (but no dex)
I have tried two different usb-c to HDMI cable adapters and can't get neither of them to work. Any ideas thanks
Broken and need help
I have a Ugreen Adapter for usb-c to HDMI cable, it worked very well
On several tvs, it WAS working here in Mexico on my ATVIO tv, then I did some phone cleanup and it STOPPED, is there a special application or setting that I've uninstalled????, I'm lost without YouTube on my tv LOL , cant find info anywhere and I swear I installed something on my phone to get it working like 7 months ago in Dallas LOL
biggest thing iv found with EVERY usb type C connectivity issue, POCKET LINT. its as simple as using a sewing needle or safety pin to CAREFULLY take the pocket lint out of the type C port on your device, there are 30 individual pins in there, and they ALL need to make a good connection to your adapter. brand does not matter, if it works with phone A phone B will figure it out (unless your phone simply doesnt support mhl adapters)
Same problem - Galaxy S8+ with Choetech USB-C to HDMI adapter. Worked a couple of months ago not working now. Wife's phone (exactly the same) work a with adapter and HDMI cable. Cleaned, powered on/off, reset phone, nothing works. So frustrating. Any ideas?
I was using my S8+ with my TV. After a couple updates ( prior to Pie) no longer worked. Please don't suggest turning things on / off or factory reset.... The cord is fine. My phone just now updated to Pie, I thought great, maybe it will work again..... nope... I've contacted Samsung, same BS runaround. Samsung - must be a compatibility issue, Me - it was working, Samsung - must be the cord, buy a new one, Me - already did, tried two different brands, Samsung - was one of them Samsung, Me - ......., Samsung - try factory reset, Me -....... by this time I know I'm screwed. There WAS something to do with an update. (And yes prior to the Pie update I did a factory re-set with no results). From the comments on this post appears no one has a solution....
Another bug i noticed is the OTG. I noticed that there is a limit in terms for power draw a USB-C OTG device can receive from the USB-C port of the Mate 20 Pro. USB Power automatically shutsdown depending on a certain current draw and the scenario is somewhat random. This error has been persistent until now with the current version of the F/W (.126)
Although from the phone notification, "Supplying power to the connected device over USB" is present, you will notice from the LED indicator of device attached to the USB port shuts down right after you plug it. If you attempt to re-plug it, usb power is randomly restored.
I am using a USB-C usb hub with HDMI port as the OTG device. I tested this device with another phone (P10, Samsung, etc), power is stable.
I actually have the some problems reading my otg with a USB drive connected. The connection is intermittent. Sometimes it can read the drive and sometimes it can't. I tried it on my P20 Pro and it's working fine. It will be great if others can try it out and review it here.
I'm on version 9.0.0.183 (patch05). Thanks
No otg problem hdmi desktop mode
I am on emui 9.0.0.198 and I have no problem connecting my television through hdmi without extra power. Although at first the connection failed (tv screen showing red stripes and intermittently switching to black screen) and I had to change hdmi cable. Desktop mode worked fine after that hdmi replacement. Maybe just hdmi does not draw much power.
Mate 20 pro.
I bought a usb-c to hdmi cable, it connected to my new LG PC monitor a few times with no problems. But recently (no sure when or why) it will not connect to the monitor but it will connect fine to my Samsung series 7 TV.
The phone notification says the phone is supplying power to the usb device.
I have a ugreen 16gb USB/usb c flash that I used to use on my p20 lite and it worked fine. I tried it with my mate 20 pro and it does not work. I also have a hdmi/usb c for desktop mode and that works with no issue.
I purchased USB c / female USB adapter and when I plug in my OTG USB memory (that does not work when plugged into the phone) now works perfectly.
Hi Guys,
I have Huawei Mate 20 pro and one of the reasons to buy this was the desktop mode.
I have an old HP monitor that has 3 ports (DVI, VGA and display port). So I bought 3 things. USB c to HDMI dock. HDMI Cable and HDMI to DVI Converter. I plugged all these in and my monitor is not picking any signals.
I think that the USB c to HDMI dock might be faulty so i ordered a new one but would it be better if i just get the USB c to DVI cable ? I wont be able to charge the phone but atleast it would work.
Can anyone advise ? I just want to use the Desktop mode on my old monitor with mouse, keyboard and charging.
I have a choetech usb-c to hdmi adapter that works perfectly for the mate 20 pro. I cannot advise how other bits will work.
Thanks for this message, I didn't even know that there was a desktop mode on my phone
I have a Startech adapter from USB-C to DVI, HDMI, VGA or miniDP and just tested out, everything works fine.
Maybe the resolution of your monitor is not supported?
I bought this monitor a while ago and it works fine with a laptop that supports Displayport and power over USB type C alt-mode. I read it worked with some earlier galaxy S phones but I can't get it to work with my S9+. The monitor turns on and I get garbled video. Has anyone got this type of setup to work. I've tried searching for a dock/hub that supports USB C alt-mode (DP and power) in and out to another USB C for the monitor but also have a power delivery port - thinking maybe the S9+ isn't providing enough power but also to not drain my S9+ really quickly. Does such a hub/dock/cable exist?
Hi,
I have had a Tab S7 Wifi 128 GB (returned it) and have a Tab S7+ 256 GB 6GB RAM here. I want to use it for streaming games only. I capture on my desktop pc with a AverMedia 4k capture card (but I have 4k and 1080p Elgato cars here as well to test).
I plugin the USB-C Multiport Adapter (EE-P3200) from Samsung and it shows "HDMI connected". Screen mirroring and DEX work, resolution and 60Hz are just fine. But after a few minutes - sometimes more, sometimes less the signal drops with a "HDMI disconnected" message. I have to unplug and plugin the adapter again.
- This happens all the time, on the homescreen, in apps, in games.
- It's not the monitor -> it works with all my devices I have here and I tried
- It's not the adapter -> I also have an Apple adapter, an Aukey adapter and a no-name USB-C to HDMI cable ... all four solutions have the same problem!
- It's not that particular Tab S7(+) -> a brand new S7 and S7+ do the same
- It's not the capture card(s) -> Same behaviour with all 3 cards AND I have an Android Huawei MatepadPro tablet as well as an iPad Pro here that work just fine with all adapters, all cables, all capture cards
I "reset" both the S7 and S7+ even tho both were brand new and sealed. Both were/are on the newest software update from October 1st. The problem existed on the stock software as well.
Any ideas please? The tablet itself is great and the huge screen is simply put amazing. But If I can't use the HDMI output it is useless for me.
yuri624 said:
Hi,
I have had a Tab S7 Wifi 128 GB (returned it) and have a Tab S7+ 256 GB 6GB RAM here. I want to use it for streaming games only. I capture on my desktop pc with a AverMedia 4k capture card (but I have 4k and 1080p Elgato cars here as well to test).
I plugin the USB-C Multiport Adapter (EE-P3200) from Samsung and it shows "HDMI connected". Screen mirroring and DEX work, resolution and 60Hz are just fine. But after a few minutes - sometimes more, sometimes less the signal drops with a "HDMI disconnected" message. I have to unplug and plugin the adapter again.
- This happens all the time, on the homescreen, in apps, in games.
- It's not the monitor -> it works with all my devices I have here and I tried
- It's not the adapter -> I also have an Apple adapter, an Aukey adapter and a no-name USB-C to HDMI cable ... all four solutions have the same problem!
- It's not that particular Tab S7(+) -> a brand new S7 and S7+ do the same
- It's not the capture card(s) -> Same behaviour with all 3 cards AND I have an Android Huawei MatepadPro tablet as well as an iPad Pro here that work just fine with all adapters, all cables, all capture cards
I "reset" both the S7 and S7+ even tho both were brand new and sealed. Both were/are on the newest software update from October 1st. The problem existed on the stock software as well.
Any ideas please? The tablet itself is great and the huge screen is simply put amazing. But If I can't use the HDMI output it is useless for me.
Click to expand...
Click to collapse
I just got an update on my AT&T tab S7 5G with November security. Maybe there is a fix coming for this. I have seen Samsung doing USB C updates to devices recently too.
macgyver40 said:
I just got an update on my AT&T tab S7 5G with November security. Maybe there is a fix coming for this. I have seen Samsung doing USB C updates to devices recently too.
Click to expand...
Click to collapse
I just got that update two days ago, but it changed nothing.
I've had about 10 calls with Samsung tech levels 1 and 2. Every call I had to explain every from scratch (even with a case number lol) and every person told me "problem is not known/reported", the last guy I had on the phone told me his colleague (that he was texting with during the call) had multiple customers complain about hdmi disconnects and he (the colleague) was able to reproduce the issue on two S7's himself.
I returned the tablet now as a stable hdmi output is vital for my usecase.
For others having the problem, do you have external power connected to the adapter? Plugging a USB-PD analyzer into the S7 shows it can only source 500mA, which might not be enough for some adapters (especially the ones that are also USB hubs) to work reliably.
So after almost 4 months now I bought a brand new Galaxy Tab S7+ again. New Android version, new OneUI version, same problem.
- 4 different adapters (3 with PD) including the original Samsung EE-P3200
- different HDMI cables (including a 8k certified one)
- issues with a Thomson TV, Sony TV, Asus Monitor, Elgato 1080p capture card, AverMedia 4k capture card
- 3 brand new tablets (S7, S7+ and another S7+)
- all my adapters, cables and devices work 100% fine with: iPad Pro 2017, iPad Air 4, cheap Chinese Windows tablet
Hey yuri. You are not alone. i have the exact same problem. I tryed two different adapters, 3 power brackets. End device is my Elgato Capture card. Tryed it also on my Tv my Beamer and so on... My connection breaks randomly all the time. Its hard to find a solution for this problem.. Tab S7+ 5G
Simak1990 said:
Hey yuri. You are not alone. i have the exact same problem. I tryed two different adapters, 3 power brackets. End device is my Elgato Capture card. Tryed it also on my Tv my Beamer and so on... My connection breaks randomly all the time. Its hard to find a solution for this problem.. Tab S7+ 5G
Click to expand...
Click to collapse
although i had a usb c hdmi hub that i bought for my s8 phone (not that long ago) i found it's actually the power source+hub that's the culprit.
i knew it does need power cable too in when hdmi out-ing however i thought that 1.5-2A charge is just fine and since it was a good build quality usb c hdmi hub that it will be just fine as well
it wasn't until i had accubattery confirm while running that even with the stock quick charge brick in, when Dexxing if the tablet screen is on too there's barely 0,4 Amps surplus charging the tablet battery after all the consumptions.
mind you i had external drive+usb mouse+usb keyb all hooked up at once.
either that (orig quick charger adapter from Samsung) did the trick or the other : LEVIN USB C hub i bought from Amazon
https://www.amazon.co.uk/dp/B083DZ1...abc_A1006ASWRW8EZE438PK9?_encoding=UTF8&psc=1
but since these two changes my Dexxing is rock solid
at first i thought there's some proprietary trickery is in place that it only works with original Samsung gear (hubs) but i still found these to be too pricey so i got the aforementioned Levin which was of 15.97 gbp inc. posting
hope this helps solving it too
nagymancs said:
although i had a usb c hdmi hub that i bought for my s8 phone (not that long ago) i found it's actually the power source+hub that's the culprit.
i knew it does need power cable too in when hdmi out-ing however i thought that 1.5-2A charge is just fine and since it was a good build quality usb c hdmi hub that it will be just fine as well
it wasn't until i had accubattery confirm while running that even with the stock quick charge brick in, when Dexxing if the tablet screen is on too there's barely 0,4 Amps surplus charging the tablet battery after all the consumptions.
mind you i had external drive+usb mouse+usb keyb all hooked up at once.
either that (orig quick charger adapter from Samsung) did the trick or the other : LEVIN USB C hub i bought from Amazon
https://www.amazon.co.uk/dp/B083DZ1...abc_A1006ASWRW8EZE438PK9?_encoding=UTF8&psc=1
but since these two changes my Dexxing is rock solid
at first i thought there's some proprietary trickery is in place that it only works with original Samsung gear (hubs) but i still found these to be too pricey so i got the aforementioned Levin which was of 15.97 gbp inc. posting
hope this helps solving it too
Click to expand...
Click to collapse
Well I gave up on the S7(+) long ago already. It did NOT work with the official Samsung power adapter + USB-C adapter.
Also just for testing... I had bought a cheap Samsung Galaxy S5e, and ALL adapters, ALL power bricks, ALL hdmi cables worked with that. Same on a Huawei Matepad Pro and a Lenovo P11 Pro (which I am using now). All my stuff (in every combination) works on all Android tablets (and iPads) that I tried.
And all Samsung "customer support" could tell me after 4 months was "apparently Samsung devices can not suit your needs when using capture cards" (apparently a 1.000 EUR device can not while their 400 EUR tablet can). No comment.