[Q] Screen Mirror glitch - Nexus 4 Q&A, Help & Troubleshooting

Hi, when I try to screen mirror to my Sony TV it is very glitchy.
It connects fine but when the 'display' appears on the tv the majority of it is black and there are spots of colours and whatnot.
It's kind of like watching a tv with terrible signal except most of the TV is just black.
Im uploading a video to youtube about it which will show exactly what happens and will post a link to it when its finished.
N4 running on illusion rom

p.s i can confirm that audio seems to work just fine.
Only what looks like static on parts of the display screen though

Related

Full screen when using HDMI

I hooked up my Transformer to my LCD TV. The TV is full 1080p.
I noticed that a sizable area around the edge of the display is clipped off. For example I cannot see the status bar on the TV, but it is still there on the transformer screen as well.
I was wondering is anyone else having this problem? or even better a solution?
Thanks
It does this because the display on the transformer is 1280x800, so it cuts the display down to 1280x720 (720P). This way it displays full screen on the tv what your trying to watch.
Is there anyway to have the transformer output to 1280x800? I also do not like how the output appears zoomed.
Sent from my Transformer TF101 using Tapatalk
first check so the TV shows 1:1 pixel ratio/full pixel and not "normal". My TV cuts of the hdmi signal somewhat, even with computers attached, call it overscan if you like, unless i choose "full pixel" (sonys name for it).
So try hunting in your settings on the TV. When i tried on my TV i didnt loose anything but the statusbar is not shown on tv, i guess thats not realy important as it is the video/app you want to see and they are not aware of the statusbar anyway.
Great!! Thanks a couple of things to try.
hmmm
I thought that hiding the bar was a feature!
I have this issue also. It not only cuts off the bottom bar but both sides are croped a little. I have tried the HDMI out on 3 different TV's and they all show the same croped effect. This is weird to me because my laptop displays 720p or 1080p perfectly on the same TV's Is there a fix for this?
Thanks

[Q] External HDMI Output problem

Using my Acer A500 whenever I connect it using the Micro HDMI it does appear on the screen but it seems to have part of the screen cut off. The status bar on the bottom of the screen and then about the same space on the top and sides.
Is there anything you can get for a root ICS tablet to change the output?
Could it be the cable I am using a 10ft cable?
Or this just what it looks like does the whole screen just never fit.
The TV is a 37 inch HD ready Beko
It outputs at 720p. Does your TV support that resolution?? I have had none of the problems your describing while using the HDMI out.
cruise350 said:
It outputs at 720p. Does your TV support that resolution?? I have had none of the problems your describing while using the HDMI out.
Click to expand...
Click to collapse
It does support it as my Xbox output is 720p and when the tablet is connected it says on the tv its output is 720P 60HZ.
any other ideas?
I have the same issue butnot with my TV. My TV will show the entire screen but when I plug into a projector it cuts off part of the screen. I would not think the HDMI out is device dependent but it is certainly looking like it.
Not sure if you checked this, but this happened to me yesterday. What had happened was that the zooming on the TV was causing the problem. It was on 16:9, and cut off some parts. Went through the zooming options until I found one that showed the entire screen (can't remember what it was called).
rikponne said:
Not sure if you checked this, but this happened to me yesterday. What had happened was that the zooming on the TV was causing the problem. It was on 16:9, and cut off some parts. Went through the zooming options until I found one that showed the entire screen (can't remember what it was called).
Click to expand...
Click to collapse
on a,LG,phillips its original zise a samsung: full screen
Im having the same issue as well, 37" Panasonic LCD. Its fully capable of 1080p as well as 720. I remember connecting my motorola atrix and droid bionic to the TV and both those phones have an HDMI setting --> Overscan setting that you adjust using a slider. With those 2 phones however they problem wasn't the screen getting cut off, it was too small, and adjusting the overscan as high as it could go made the output from the phone fit the tv PERFECTLY.
In our instance, we would need that same overscan slider, and to turn it down. BTW: that setting on the phone was set in the middle by default (say at 50%), so the phone would need it adjusted to 100%, where as our tablet would need it at 0 or near zero...

HDMI and TV

hello
i have a little problem
i connect my tegra with tv and im not getting full screen
i have two black lines on each side and the center is stretched to up and down..ill take a photo
blade_ said:
hello
i have a little problem
i connect my tegra with tv and im not getting full screen
i have two black lines on each side and the center is stretched to up and down..ill take a photo
Click to expand...
Click to collapse
This has been discussed already. Have a search of this forum.
Basically it's due to the difference in aspect ratio between your TV and the tablet.
Under the original firmware, when using a video app like MX Player it was possible to zoom in on the tablet and this would allow the image on the TV to zoom to the point where the black bars on the disappeared. This no longer works on either the 4.3 or 4.4.2 firmware. If you use HDMI a lot and the bars bug you, you need to roll back to the 4.2 firmware. Bear in mind you will still get the black bars on the main GUI, but not in movie players that allow zooming.
thanks for your answer
i found this im not sure if working
http://www.modaco.com/topic/366783-hdmi-not-full-screen/ post #14
blade_ said:
thanks for your answer
i found this im not sure if working
http://www.modaco.com/topic/366783-hdmi-not-full-screen/ post #14
Click to expand...
Click to collapse
Good find. For my part I decided to take another route. I now use a wireless dongle and the free companion app by EZCast to stream movies to my TV which works quite well now - when streaming in EZCast mode (basically WiFi direct) there are no bars on the left and right. The screen can be turned off to save battery. You can also minimise the app while you're streaming a film to allow you to open the IMDB app for those vital 'what has she been in before' arguments with your partner . The dongle was about £30 from Amazon. It also features EZMirror which, um, mirrors the whole tablet's screen to the TV but then you're back to having bars left and right, and there's too much latency for gaming. Also, when using EZMirror, there is a pronounced slow down in the tablet whereas when using an HDMI cable there is no performance penalty at all. It's a shame that Nvidia aren't taking advantage of the latter as devices that output images to a TV via an MHL port/adapter experience a considerable performance hit as the device has to work so much harder. Another negative factor here is that the Note doesn't seem able to take a charge when connected to a USB hub via an OTG cable which also limits the usefulness of the tablet as a media device connected to a TV or monitor.
To return to the original problem, my TV has an option in the settings menu to either 'just scan' or to display 16:9. The latter removes a big chunk of the bars on the left and of the screen, but it also hides part of the top and bottom of the picture, which is OK on a movie, but less so when viewing the home screen etc.
Photo
Can you share us the photo?, I'm thinking on buying one and I want it to use for playing videos on my TV.
ricarroyo88 said:
Can you share us the photo?, I'm thinking on buying one and I want it to use for playing videos on my TV.
Click to expand...
Click to collapse
Do you mean EZCast information?
If so, there's lots of info on YouTube that will explain/show you how it works http://www.youtube.com/watch?v=h6_U44XUdJ0. Search for videos by EZCast themslelves - they have videos for various devices.
Bear in mind that there are two basic modes, EZCast and EzMirror. EZMirror literally mirrors everything you see on your tablet's screen (which also leads to vertical black bars on the left and right of the picture on the TV screen, just like when you use HDMI due to the differing aspect ratio of the tablet and the TV).
EZCast presents a menu on the tablet screen and then allows you to select different types of media to stream to the TV. This works well for films because it will fill the TV screen. It's less useful for streamimg music to a TV at the moment because it will only stream one song file at a time, after which you have to select another song.
If you buy one, there are different hardware versions available. Mine has 128MB of RAM. I have a feeling that those on offer that have 256MB RAM and a faster CPU will provide better streaming performance.
Hope this helps
Ouzo said:
Do you mean EZCast information?
If so, there's lots of info on YouTube that will explain/show you how it works http://www.youtube.com/watch?v=h6_U44XUdJ0. Search for videos by EZCast themslelves - they have videos for various devices.
Bear in mind that there are two basic modes, EZCast and EzMirror. EZMirror literally mirrors everything you see on your tablet's screen (which also leads to vertical black bars on the left and right of the picture on the TV screen, just like when you use HDMI due to the differing aspect ratio of the tablet and the TV).
EZCast presents a menu on the tablet screen and then allows you to select different types of media to stream to the TV. This works well for films because it will fill the TV screen. It's less useful for streamimg music to a TV at the moment because it will only stream one song file at a time, after which you have to select another song.
If you buy one, there are different hardware versions available. Mine has 128MB of RAM. I have a feeling that those on offer that have 256MB RAM and a faster CPU will provide better streaming performance.
Hope this helps
Click to expand...
Click to collapse
Thanks, but I meant the vertical bands when displayed the HDMI Output on the TV
ricarroyo88 said:
Thanks, but I meant the vertical bands when displayed the HDMI Output on the TV
Click to expand...
Click to collapse
Oops, sorry. The exact size of the bands on the left and right of the TV screen will depend upon what formats the TV supports. For example one of my TVs zooms in slightly by default cropping a bit of the top and bottom of the phone or tablet's screen off (meaning you lose most of the notification bar and some of the soft keys, or whatever is at the bottom of the picture). I have another TV that allows different settings such as 'just scan' that shows all of the phone or tablet's screen. The downside of this is that on a phone/tablet with a 1280x800 resolution you have vertical black bars about an inch wide on either side of the picture on a 32" TV. I'll try and get a photo...
Unfortunately the camera on my HTC Sensation is struggling to capture the problem tonight, but here's a closeup of the right hand side of my TV with the tablet set to full screen mode, and the TV picture settings to 'just scan'. I might try and get a fuller photo the daylight tomorrow.

Netflix app bug or screen defect?

I've noticed that when streaming Netflix video on my 6P, initially, during lower resolution playback as HD video is building up a buffer, some horizontal bands can be seen on the screen within sections that are displaying gray and black colors. It lessens as the video t transitions to HD playback. It is particularly noticeable when I touch the screen during playback, and the controls like rewind and pause come up on the screen. On the top and bottom of the screen, where the screen darkens, I see horizontal lines/bands within the dark screen animation. This is retained to a lesser degree, even when HD playback is occurring, and I touch the screen to bring up the playback controls. I don't notice this problem of seeing the horizontal lines/band during video playback on other apps, such as YouTube, Hulu, and Amazon Instant Video. I also don't see the lines/bands on the screen during any other times when using the phone.
Could other US Netflix users test out Netflix playback on their phones to see if they're also experiencing this problem?
Maybe, it's a matter of the Netflix app not being optimized for the 6P yet and having some bugs.
I'm hoping that this is not indicative of a screen defect.
Thank you for anyone who can provide any input on this issue.
I haven't seen this issue reported by anyone else yet.
richteratmosphere said:
I've noticed that when streaming Netflix video on my 6P, initially, during lower resolution playback as HD video is building up a buffer, some horizontal bands can be seen on the screen within sections that are displaying gray and black colors. It lessens as the video t transitions to HD playback. It is particularly noticeable when I touch the screen during playback, and the controls like rewind and pause come up on the screen. On the top and bottom of the screen, where the screen darkens, I see horizontal lines/bands within the dark screen animation. This is retained to a lesser degree, even when HD playback is occurring, and I touch the screen to bring up the playback controls. I don't notice this problem of seeing the horizontal lines/band during video playback on other apps, such as YouTube, Hulu, and Amazon Instant Video. I also don't see the lines/bands on the screen during any other times when using the phone.
Could other US Netflix users test out Netflix playback on their phones to see if they're also experiencing this problem?
Maybe, it's a matter of the Netflix app not being optimized for the 6P yet and having some bugs.
I'm hoping that this is not indicative of a screen defect.
Thank you for anyone who can provide any input on this issue.
I haven't seen this issue reported by anyone else yet.
Click to expand...
Click to collapse
I've used some apps to test gradient banding for the screen, and I haven't detected banding when performing the tests...

Chromecast zoom problem

Hi guys. The screen on my X suddenly stopped working and is always black. The phone still works, but I cant see anything.
After many, many, many tries, I was able to get the screen mirrored to my TV, but the screen resolution is way off and/or it is really zoomed in. (see attached photo) I probably changed a setting while I was blindly trying to cast the screen to my TV.
I've casted the screen to the TV many times without any problem (before my phone screen died), so I dont think it's an issue with the TV or Chromecast, but I don't want to rule anything out. I don't want to disconnect and reconnect the phone from the TV/Chromecast because I may not be able to reconnect.
Any ideas as to how to fix this? Thanks.

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