Different display for TV out and Screen?? - Galaxy S I9000 Q&A, Help & Troubleshooting

I am playing with the TV-out function on my phone... I went looking all over for a tv out cable, ended up trying my old Zen Vision:M 60gb (the fat one) video out cable, worked perfectly! now i'm wondering if i could have something different display on the TV than on my screen, like doing a power point presentation, and having presenter view on my screen, and the slideshow on the TV. Playing SNES games on the tv, and having just the controller showing on the screen. watching a movie on the tv and having the play/pause slider bar, on the screen. or EVEN having a video on the tv and using my phone for other things at the same time...
tl;dr - does anyone think i can multi-screen with the TV out on my phone, or is it locked to displaying whats on the phone?

First of all: how is this a development question, are you currently researching code to solve your quest?
Second: You do remember your holding a phone not a media laptop? Is it not a bit much to ask for ...

Kindar said:
I am playing with the TV-out function on my phone... I went looking all over for a tv out cable, ended up trying my old Zen Vision:M 60gb (the fat one) video out cable, worked perfectly! now i'm wondering if i could have something different display on the TV than on my screen, like doing a power point presentation, and having presenter view on my screen, and the slideshow on the TV. Playing SNES games on the tv, and having just the controller showing on the screen. watching a movie on the tv and having the play/pause slider bar, on the screen. or EVEN having a video on the tv and using my phone for other things at the same time...
tl;dr - does anyone think i can multi-screen with the TV out on my phone, or is it locked to displaying whats on the phone?
Click to expand...
Click to collapse
Doubtful because the TV-out is a complete copy of the screen.
It does not process anything itself.
Sorry to disappoint.

NOT TRUE, With some devices you can have only controls on the phone screen while watching video on TV...

sargasso said:
First of all: how is this a development question, are you currently researching code to solve your quest?
Second: You do remember your holding a phone not a media laptop? Is it not a bit much to ask for ...
Click to expand...
Click to collapse
Your rude/smartass tone is unacceptable, especially for a first post. Act like that and you won't last very long around here.

This will be possible with the next generation chipset (which was announced recently). For now it can not be done.
Sent using XDA App

darkflyer1983 said:
NOT TRUE, With some devices you can have only controls on the phone screen while watching video on TV...
Click to expand...
Click to collapse
Really which devices.
I am not trying to be rude. I'm asking this as a serious question.

It's possible over WiFi using DLNA compatible devices or various less universal remote control solutions. None of those have anything to do with the TV out ofcourse.
Sent from my GT-I9000 using XDA App

We could see this feature in the next samsung phone or TAB. I heard that samsung is working now with nvidia for using the Tegra processor. Maybe it'll have a split tv out feature or similar with the one on computers - secondary and primary screen.
@ sargasso : It's not a dumb question lol . I'm playing quake 3 on my phone (even on network with others) and you say it's to much to ask from a phone ?!? These 1 gig phones from totay's technoloy are no simple devices anymore, they can handle allmost anythig and can do actualy a lot of thing that notebooks do. With a dual screen view feature it's not about "if" or "not posible", but when. And "when" is very soon. Remember that not long ago there were notebooks with less hardware than these phones.
Mark my words (love this line from Matrix) ! - Pretty soon we'll see not only a split tv out but a new feature in wich you swipe the picture from your phone toward the lcd tv(via wifi/dlna) just like in the James Bond movie. Anything is posible. Next year the phones will even recieve a dual core cpu.

Yeah I dug up my old tv out cable which came with my N95 and that work perfectly...
I'd prefer hdmi out though.....

Most likely available before H2 - 2011
...a native triple display controller, and on-chip HDMI 1.3a interface.
Click to expand...
Click to collapse
http://www.engadget.com/2010/09/07/samsungs-orion-is-the-1ghz-dual-core-arm-cortex-a9-weve-all-be/

Ok thanks all for the info.
Yes i may have put it in the wrong forum, i'm sorry, i wasn't sure where to put it.
It is running on linux, and it has the ability to do multiple outputs, so it was just a matter of asking if the hardware could support it.
Alexzander - i would love to see james bond style information sharing, tossing files across the room to your friend, or putting something on the tv for everyone to see just by a gesture!

Kindar said:
Alexzander - i would love to see james bond style information sharing, tossing files across the room to your friend, or putting something on the tv for everyone to see just by a gesture!
Click to expand...
Click to collapse
For tossing files around, I believe there's already an app for that: Hoccer.
Haven't tried it yet, though.

Anyone ever get any info on this. I'm wondering if it's possible to turn the screen of while using tv out, for example when playing a movie. I don't want to shorten my screens life.
Sent from my GT-I9000 using XDA App

Now I found proof of this concept. That is definately something different on both screens. Now we need a way to control this ourselves.
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Related

TV-OUT for Android platform?

I'd like to know, since Android is an open platform, if it is possible to have TV-OUT function on the HTC Dream or G1 like in Touch Pro. I teach and I use power points and I'd like to be able to project my ppt. Is it a hardware problem or software? I bought the cable for my touch pro, but I am tired of WinMO and I am planning to make the switch.
Thanks.
It's not out of the realm of possibility for Android as an os, but the Dream hardware doesn't have (to my knowledge) any tv-out hardware.
Hmm.. the only output possible would be the mini-usb port. However, I am pretty sure this port does not support a video out.
So it is a hardware issue. Well, maybe the G2 fixes it.
Thanks..
Mm, it doesn't support video out, as of yet I mean. There is a possibility in the near future it may be able to. However, the signal would need to be converted somehow into the usual composite video most sources use. Then there is the issue that the G1's hardware puts out a video resolution of 320x480, and most TVs are HD now at 1080 x 920 resolution.
jashsu said:
It's not out of the realm of possibility for Android as an os, but the Dream hardware doesn't have (to my knowledge) any tv-out hardware.
Click to expand...
Click to collapse
yes it does....
http://andblogs.net/2009/05/specs/
and i though you guys were on top of all this... the blog's been out over a week
t1h5ta3 said:
yes it does....
http://andblogs.net/2009/05/specs/
and i though you guys were on top of all this... the blog's been out over a week
Click to expand...
Click to collapse
Very cool! I am excited now about Android. I am ready for the switch. The fact that is open makes a whole world difference and the terrific geeks of xda are having too much fun!
Hmm.. G1 + TV-OUT + Wearable HUD = Me Uber Geek. lol
Rick
incase the specs disapeared.
links removed - leagal issues....
after some google-fu about the chipset i came across the zeebo. its based on the g1 hardware, and supports video out, i guessing thru the mini-usb.
ubernicholi said:
after some google-fu about the chipset i came across the zeebo. its based on the g1 hardware, and supports video out, i guessing thru the mini-usb.
Click to expand...
Click to collapse
Its actually different from the G1 hardware. The G1 has an ARM6/7 processor while the zeebo has an ARM11 (I wish we had this in the G1) processor.
ahh okay, how much different would the code be? since the g1 chipset and zeebo support tv out, would it be possible to use the zeebo sdk to figure out how the system calls would need to be executed?
edit : wikipedia list the g1 as an arm11
my bad haha, yeah arm11 processor, but the supported instruction set is arm6.
Been doing some research on this... please be gentle, just thinking out loud.
I'm fascinated by the capabilities of the G1 w/ Android. I'm also very excited about where Android may end up w/ the release of new phones and netbooks in the future and what the great minds of xda-dev will do with it all.
I've been applying some gugl-fu to the idea of routing output to tv via miniusb. The results of said "fu" have led me to some interesting discoveries.
This page has some interesting info:
Original in French: http://android-france.fr/2009/05/11...e-du-htc-dream-une-porte-ouverte-aux-hackers/
Same page via Google Translate in English: http://tinyurl.com/m3rsoe
That page also has a pic of a hacked miniusb -> VGA cable as well.
So I applied some "fu" to G1 miniusb to VGA cable and found this for the HTC Touch Pro/Pro2: http://www.inkino.co.uk/zen/index.php?main_page=product_info&products_id=2460
From what I understand the hardware supports TVOUT but Android either does not take advantage of the feature at this time AND/OR the hardware capability is there but crippled/disabled during manufacture AND/OR all the hardware capabilities are there but Android does not support the feature and if it did output would be practically unusable because of limitations on developers put in place by Google's dev team...
So which is it?
Is development actually an option at this time?
If an app can be created to facilitate TVOUT or a build created to take advantage of the hardware capabilities will we simply need to purchase one of these cables, or hack together a miniusb to VGA cable?
And, if all this is possible, will video output be good enough to stream vids from LukLuk or the SDCard to a TV or will bandwidth limit us to simpler tasks equivalent to powerpoint presentations and slideshows?
I'm having a lot of fun installing the new builds and adding HERO apps to JFK builds etc. and am impressed by how well the xda-dev community works together. The TVOUT function has simply piqued my interests and I felt compelled to ask.
Thanks for any answers you guys may have. - Cheers!
http://www.pocketgamer.co.uk/r/Various/Zeebo/feature.asp?c=13361
hey,guys check this out
really cool picture
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is it a way r what..... pics & links.... aint tell me nothing

iControlPad or Joy Phone or zeemote JS1?

Ive all but given up hope that wiimotes will ever be supported on our tab...anyone tried any of the controllers listed in the subject on a galaxy tab 7 with success?
Thanks.
Ben
Sent from my SCH-I800 using XDA App
Or keyboard...hadnt really thought about it before, but i used to use a keyboard for gaming on my PC all the time. Anyone doing this?
So i went ahead and ordered an iControlPad and I will report back here what it can or can't do on my VZW gb tab.
Sent from my SCH-I800 using XDA App
Edit: just read in the comments for the 'Bluez IME' app which supports all of the controllers noted in the subject that it supposedly does work on a galaxy tab 7. Guess i will know first hand soon enough
yes! I thought I was the only one, I use my bluetootg keyboard witg enulators, and other games? Love playing doom and prince of persia in ADOSBOX. I recomend trying this out, thinkgeek has a pretty nice keyboard case for it which I use for gaming and typing this post, it does require getting used to. (i really recomend trying adosbox, it is great for classics. all Ive been doing the past few day.)
I was starting to wonder if anyone else had any interest in the subject. Still waiting for the shipment. Will probably look into keyboards soon...I would love to try some descent on my tab.
Sent from my SCH-I800 using XDA App
I ordered an iControlPad too and waiting for it to arrive. After it does I'll post an update on how it is. I plan to use it with fpse, gameboid and n64oid. I have heard that not many android games support buttons via bluez-ime.
My iControlPad came in today. Watch for a post of my impressions this weekend, maybe a few pictures while I'm at it.
Sent from my SCH-I800 using XDA App
Make a youtube video if you can as well.
Latest Overcome on T-Mobile
It works! Had to jump through a few hoops which I will document here.
Lucky_Charms said:
Make a youtube video if you can as well.
Latest Overcome on T-Mobile
Click to expand...
Click to collapse
Perhaps that is how I should document it
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Sorry, no time to make a youtube video, but the steps are simple enough.
Once you have a control pad and the free BluezIME app that is available from the market, you basically just treat the ICP (iControlPad) as an extended set of hardware keys in the game/app that you would like to control with it. This means that the ICP is not actually recognized as an ICP, but in simple terms, as a set of 20 hardware keys. Once your pad is recognized and connected through the BluezIME app you just go into the custom button settings to assign what the function of each button is. I did this successfully with both FPse and snes9x EX, and I am certain that many of the emulation apps would be able to do this.
I was not able to get any applications that natively support the ICP to recognize it as such, which I am assuming is because of the restrictions/limitations that Samsung has built into the bluetooth protocols of their devices. EDIT: latest version of FPse did recognize the ICP without BluezIME! BUT, the fact that I was able to work around this with the BluezIME app and custom button settings in my apps of choice makes me very pleased with the purchase.
----------------------------------------------------------------------​
Not much to say about the product itself. It seems well built and I noticed no delay in the controls or problems with gaming situations that require pressing multiple buttons at once. It is about the size of an old NES controller and has 20 programmable buttons when used with the BluezIME app.
My biggest gripe with playing emulators on my tab in the past was that button combinations were very difficult with on-screen controls, and your hands just get in the way of the experience. This device eliminates both of those glaring problems. If you are into emulation, skip the wiimote drama because this is what you are looking for. Personally, I feel that this little device adds a ton of value to my tab.
I got one too and its great. Also I can use it with other devices like laptops and desktop pcs.
Can anyone confirm if this works with the wifi only version (p1010)? I received mine yesterday, and can't get it to connect. I've tried blueZ as well as some of the other modes for the device. Maybe you guys could help?

[Q]Computer/Tech-savvy people only

So I'm hoping people with a little more knowledge than me in PCs would help me figure out this issue I have at the moment with my computer.
Is there any way to block an app/program from detecting your external display? In other words, still use my Vizio as a monitor, yet fool my computer to think it's my laptop's actual monitor?
The reason I'm trying to figure this out is so I can use the Optimum for Laptop app. It only runs on laptops and will not work if it detects that you're using an external display. I have no choice at the moment to use one, since the screen on my Dell Inspiron is shattered. Any tips/advice is appreciated
Try mirroring your display instead of just choosing the external as your main display. Therefore you have both the display on the laptop and on the external screen. If you choose the external as your main it cuts off the feed to the laptops screen. You will probably have to leave the lid open or go into your power settings and
choose do nothing when you close the lid. Hope this helps.
#Root-Hack_Mod*Always\
laie1472 said:
Try mirroring your display instead of just choosing the external as your main display. Therefore you have both the display on the laptop and on the external screen. If you choose the external as your main it cuts off the feed to the laptops screen. You will probably have to leave the lid open or go into your power settings and
choose do nothing when you close the lid. Hope this helps.
#Root-Hack_Mod*Always\
Click to expand...
Click to collapse
Yeah I say mirror the display as well. If that works, just toss a black shirt over your laptop screen so the light doesn't leak through.
I tried that, but then it would not stream the channel. Like it knows.....
Thanks for replying though. I appreciate it.
try enabling only the external monitor (if you haven't already) using your video card/driver software. i know this is possible in software like catalyst control center and others.
So here's what happens now. The warning about me using the external display doesn't pop up anymore when I change the display to clone on both monitors. But the channels will not load, unless I unplug the VGA to my laptop. Then the channel will start playing. I'm trying to figure out any way to still use my monitor but at the same time my laptop doesn't detect it.
I have the same exact question as the OP.
Have you found another solution to this? If I clone my display, the max resolution to my monitor is much less than I want it to be (monitor is capable of 1920 x 1080).
Thanks.
I have the same issue has there been any progress?
Moved to Off-topic.
Bumping..
Would be nice to have this ability
I thought http://forum.xda-developers.com/showthread.php?t=1765837
Sent from my Transformer TF101 using Tapatalk 2
Le Troll said:
I thought http://forum.xda-developers.com/showthread.php?t=1765837
Sent from my Transformer TF101 using Tapatalk 2
Click to expand...
Click to collapse
nice first post
welcome to ot
boborone said:
nice first post
welcome to ot
Click to expand...
Click to collapse
Why isn't this locked yet?
Sent from my Transformer TF101 using Tapatalk 2
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Le Troll said:
Why isn't this locked yet?
Sent from my Transformer TF101 using Tapatalk 2
Click to expand...
Click to collapse
Because no one's mentioned Twinkies yet.
xaccers said:
Because no one's mentioned Twinkies yet.
Click to expand...
Click to collapse
Why was that thread locked?
_______________________________________
"fat bottomed girls, you make this rocking world go round"
boborone said:
Why was that thread locked?
_______________________________________
"fat bottomed girls, you make this rocking world go round"
Click to expand...
Click to collapse
Dunno, I guess TeeJay is allergic to them
Good news though, apparently Twinkies are likely to survive.
This one is most likely done for now that "Twinkies" have been mentioned.
Long live the Twinkies!
Here and everywhere else...
Ixnay ethey alktay ofay inkiestway!
Sent from my Kindle Fire running CM10 Jelly Bean
do i need to be a member to reply to this? (I guess so lol) Optimum STILL doesn't support external display of their optimum for laptop, or thru the optimum app. It's RIDICULOUS! I subscribe to the basic tv but have no cable boxes since I only subscribed to lower my entire bill as I got a promotion for a year. I watch tv now and again on my iphone 6 or on my rca 10" tablet. I have antenna and get all the major channels but when it's really crappy weather out I will watch on tablet or phone. Would be nice if I can cast the picture to my 40" tv instead of watching on my iphone 6. Now that Altice has bought Optimum and doubled our speeds maybe they'll support external display. (But I doubt it....)

Samsung Multi-Media Dock (note II)

So I recently bought the Samsung Multi-Media dock.
I've seen a few reviews and un-boxing's but can't seem to find any videos on people showing the full capabilities.
I also noticed, that when everything was plugged in, the dock wouldn't read any storage devices (pendrives and HDD). Would anyone know the problem? or what I have to do.
Thanks in advanced.
Also if anyone knows of good videos showing what it can do etc.. or record what it can do
bump
Multimedia dock is just for charging and audio out.
Smart dock is for otg, hdmi out and charging.
swyped all these spelling errors from my galaxy note 2
Probably not enough power to run everything.
ive got the one with the 3 usb ports, 3.5 mm jack, hdmi port and the mini usb port .. isn't that the smart dock??
cos the box says multi-media haha
Are you sure it's the official one and not some clone? How much did you pay for it?
FloatingFatMan said:
Are you sure it's the official one and not some clone? How much did you pay for it?
Click to expand...
Click to collapse
around 60-70 pounds, a guy from XDA gave me the link to buy it, everything works fine, it just doesnt read pen drives or hdd orrr the wired mouse which i think would only work with bluetooth usb keyboard+mouse
http://www.ebay.co.uk/itm/121034797580?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
LLanito said:
http://www.ebay.co.uk/itm/121034797580?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
Click to expand...
Click to collapse
You can probably call up samsung and send them the serial number to make sure it's real or not.
If it's the real one, I keep reading all over the forums that the format of the hdd/pen drives might be the issue. If you do a search I'm sure you'll find them. This was usually when people were buying the 64GBs cards and had to reformat them to get them to work. I'm assuming it might be a similar issue.
Ghost_1 said:
If it's the real one, I keep reading all over the forums that the format of the hdd/pen drives might be the issue. If you do a search I'm sure you'll find them. This was usually when people were buying the 64GBs cards and had to reformat them to get them to work. I'm assuming it might be a similar issue.
Click to expand...
Click to collapse
Its true that rings a Bell, something about fat 32 or something if I'm not mistaken
Sent from my GT-N7100 using xda app-developers app
Is anybody using a bluetooth keyboar/mouse ??
thinking about getting a cheap one.. if anyone could recommend any would be kl
cheers
LLanito said:
Is anybody using a bluetooth keyboar/mouse ??
thinking about getting a cheap one.. if anyone could recommend any would be kl
cheers
Click to expand...
Click to collapse
K400 imo
Worked for me
It works fine for me with wired Mouse and Keyboard
I even noticed that if you attach the mouse before and the plug your notes in it will automatically rotate your screen
Regarding the HDD and Pen drive I didn't try it yet but it will probably not be able to read the ntfs partitions but fat and exFat must work fine
LLanito said:
around 60-70 pounds, a guy from XDA gave me the link to buy it, everything works fine, it just doesnt read pen drives or hdd orrr the wired mouse which i think would only work with bluetooth usb keyboard+mouse
Click to expand...
Click to collapse
LLanito said:
So I recently bought the Samsung Multi-Media dock.
I've seen a few reviews and un-boxing's but can't seem to find any videos on people showing the full capabilities.
I also noticed, that when everything was plugged in, the dock wouldn't read any storage devices (pendrives and HDD). Would anyone know the problem? or what I have to do.
Thanks in advanced.
Also if anyone knows of good videos showing what it can do etc.. or record what it can do
Click to expand...
Click to collapse
check out coldfusion's video on youtube re:
*edit*
here it is:
https://www.youtube.com/watch?v=SkgmqOrpKyc
pretty awesome what the Note2 can do with that dock (or just an HDMI Cable in the case of this video)
NZTechFreak ? did a video with that dock as well
LLanito said:
So I recently bought the Samsung Multi-Media dock.
I've seen a few reviews and un-boxing's but can't seem to find any videos on people showing the full capabilities.
I also noticed, that when everything was plugged in, the dock wouldn't read any storage devices (pendrives and HDD). Would anyone know the problem? or what I have to do.
Thanks in advanced.
Also if anyone knows of good videos showing what it can do etc.. or record what it can do
Click to expand...
Click to collapse
Do we have the same multimedia dock?
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I think, mine is the smart dock too, bought it for $90, I don't know if this is OEM or the orig one, but the chinese seller said it is the original one..
HDMI, mouse, keyboard are all working, I haven't been tried yet to plug an ext. hard disk..
I'm thinking now, if it is possible to force the hdmi output on landscape mode..
brochador said:
....
I'm thinking now, if it is possible to force the hdmi output on landscape mode..
Click to expand...
Click to collapse
When you connect wired mouse it should automatically go into landscape mode on tv and turn off phone screen. Mine does
Sent from my SGH-T889 using xda app-developers app
good
hello !! for me it's good : P
screen resolution
darekz said:
When you connect wired mouse it should automatically go into landscape mode on tv and turn off phone screen. Mine does
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
On the big screen what 's the resolution, of course in landscape mode ?
mobiemi said:
On the big screen what 's the resolution, of course in landscape mode ?
Click to expand...
Click to collapse
Tv reports 1080/30p. Using Maxthon browser in full screen mode and set for smallest letters is a pleasure using on bigger screen. Most (all?) applications are not optimized to utilize higher resolution output and simply mirror phone screen. Netflix app has a problem with smart dock. When video is played in full screen mode - hdmi is formated 4:3 instead 16:9. Other video apps output in correct ratio.
Sent from my SGH-T889 using xda app-developers app

Samsung Dex low quality apps issue

Hopefully this isn't mentioned some where else, tried searching around. But, I'm using note 9 with hdmi, a lot of games and even some apps look low quality. From what I can tell the UI of Dex looks normal and a few others things like web browser stuff. Even a small handful of games appear to run with no quality issues, and most non-game apps. But when I switch to screen mirroring, everything looks perfect, so I don't get the issue. I also had an extra question about screen mirroring, is there a way I can have the screen off or show all black? That way I can play games on my monitor without leaving the screen on? Let me know if y'all need any example images of games looking low quality, to be clear, a game will look low quality even "full screen" in dex while in screen mirror it looks extremely sharp and high quality like it's on the phone screen itself.
Hi
What type of USB-C to HDMI adapter you have?
If it is not Samsung DEX then picture quality is poor, by purpose. Samsung wants you to buy/use their adapter.
I have few cables/adapters but full resolution works only with DEX stand I bought. It was made for Note 8.
Screen mirroring works with any cable.
Go to shop and test...
My very old Samsung S2 and even Note 3 accepts any adapter.
Good luck.
Br, Henri
Lähetetty minun SM-N960F laitteesta Tapatalkilla
I have the official Samsung DeX cable and everything looks fine. Granted I don't play games on it but other stuff is great. I'll try running a game later and see how it is.
koragg97 said:
I have the official Samsung DeX cable and everything looks fine. Granted I don't play games on it but other stuff is great. I'll try running a game later and see how it is.
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Seems from both comments, official dex cable will be needed. My monitor is 1080p, shows its on 1080p in settings, picture is full screen. Browser looks normal, videos like youtube play what appears to be perfect quality, which is why im so confused.
Could you try a game like pokemon masters ex? Its one of the ones thatll show normal size, but looks low quality, very pixely, then switch to mirroring to see if theres a difference? Cause if i switch to mirroring it looks how it should on my 1080p monitor.
Thanks for the help so far. If swapping adapter is the solution then awesome, i really want to use dex and like using it at the same time haha.
Edit-- What type of USB-C to HDMI adapter you have?
Its an 8 in 1 hub from amazon and brand is bqypower, goofy name but yeah. It has hdmi and vga out, tried both and got the same results.
RaptorDance said:
Seems from both comments, official dex cable will be needed. My monitor is 1080p, shows its on 1080p in settings, picture is full screen. Browser looks normal, videos like youtube play what appears to be perfect quality, which is why im so confused.
Could you try a game like pokemon masters ex? Its one of the ones thatll show normal size, but looks low quality, very pixely, then switch to mirroring to see if theres a difference? Cause if i switch to mirroring it looks how it should on my 1080p monitor.
Thanks for the help so far. If swapping adapter is the solution then awesome, i really want to use dex and like using it at the same time haha.
Edit-- What type of USB-C to HDMI adapter you have?
Its an 8 in 1 hub from amazon and brand is bqypower, goofy name but yeah. It has hdmi and vga out, tried both and got the same results.
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Click to collapse
I have the official Samsung DeX cable: https://www.jarcomputers.com/Samsung-DeX-Cable_prod_CABPTSAMSUNGEEI3100FBEGWW.html
I tried 3 games that I have on my phone and ran them both in DeX mode and in Screen Mirroring via the cable. Below are screenshots of the DeX mode running these games. Obviously I couldn't take pictures while in Screen Mirroring but the quality was the same in both. My phone is set to FHD+ and my TV has a FHD resolution screen as well.
Like on 8 ball, in Dex mode it looks rough and pixely. Then when I switch to screen mirroring it looks a lot better, even compared to it on Dex in full screen. Is this really because of the cable not being from samsung? Here's an image of the balls in full screen on dex. Just seems weird how it looks better in mirroring compared to dex on the same cable. Even the mouse in dex mood looks a little off compared to mirroring which it looks like a high def mouse with no rough edges or anything.
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Don't really know as I've never had a quality problem here. But also never tried any other HDMI to Type-C cable so can't be sure if that's the cause either.

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