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SlimPort adapters

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Warbuff

Senior Member
Jul 23, 2010
644
140
New York
Two different devices, with two different intended uses.

Chromecast is a streaming device. It requires internet, and a "controller device". You can't run straight chromecast with just the 1 device. It gets URLs handed to it, then it does the streaming itself. (Sure, there have been various apps that allow you to mirror your screen, but that's not how it was intended to be used)


Slimport is a straight video/audio output. Everything you see on your screen shows up on the TV you're plugged into. This is a much better option if you intend on using your tablet like a PC with a keyboard/mouse. You don't need internet, you don't need wifi, you don't need another device to act like a "remote control". It's straight up video/audio out.


I own both and I use slimport more. It's just less hassle. You plug it in, and that's it. With the Chromecast, you gotta find wifi somewhere(or create a hotspot) and then run the setup app on a third device (Chromecast, phone for hotspot, and tablet for remote control) that's too much work.
Own both. Drag down on notification screen and hit mirror screen and works the same way as slimport on chrome cast

Sent from my Nexus 7 using Tapatalk
 

abbots

Senior Member
Apr 26, 2011
344
48
Sydney
hi, I have N7 2013 A5.1 root
I wanted to buy a slimport adapter in Oz, but, noticed in description as follows;
http://www.ebay.com.au/itm/SlimPort...-7-LG-G2-G3-/151532987491?hash=item234811e463

" Specification: Google LG Nexus 4 / Nexus 5 / Nexus 7(Nexus 7 2013 only supports 4.4.2 version)"

does that mean it won't work with A5.1 ? or did they mean 'minimum Android 4.4.2 or above'?

I'm trying to display tablet on car radio screen via composite video, fwiw

thanks
 

UKEZ

Member
Jan 1, 2008
33
0
Has anyone tested their SLIMPORT device since installing the Marshmallow operating system on their Nexus 7 2013? I seem to be getting a black screen since updating. I'm using a Nexus 7 2013 LTE.
 

Rick949

Member
Nov 1, 2012
21
15
Has anyone tested their SLIMPORT device since installing the Marshmallow operating system on their Nexus 7 2013? I seem to be getting a black screen since updating. I'm using a Nexus 7 2013 LTE.

I'm having the same issue. The slimport device no longer works after the Marshmallow OTA update. Using a USB power on the slimport does not help. I have a Nexus 7 2013 WiFi version.
 

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  • 7
    I'd be curious to whether the output is vertically squashed or whether there are black bars on top and bottom of the output and the aspect ratio is kept consistent as well.

    I bought the Analogix adapter, and the full Nexus 16:10 display is evenly scaled down to fit within the 16:9 ratio of the tv. This means that the image you see has the correct aspect ratio, but is pillar-boxed on the tv screen. This also means that it's not a 1:1 pixel mapping. In fact, playing back a 1080p 16:9 movie appears both letter-boxed (to fit in the 16:10 Nexus ratio) and pillar-boxed (to fit back into the 16:9 tv ratio) when played back on the tv. The scaling quality is good, but I'd much prefer 1:1.

    My Asus 10" tablet handles this much better. When it detects an hdmi connection, it letter-boxes the tablet display and forces Android into an aspect-correct 16:9 mode so that it can mirror the display to the tv. I was really hoping the Nexus would do the same thing, or at least give me an option to reconfigure this, but I haven't found any settings for it. Overall I'm a bit disappointed, this seems like a step backwards.
    6
    I can confirm that the slimport in the link below works perfectly with the new nexus 7, including 1080p video and audio output http://www.amazon.com/SlimPort®-SP1...4962024&sr=8-1&keywords=slimport+hdmi+adapter
    5
    Thanks for the details monouchi. That's most dissapointing. I wonder if Google would ever patch Android to give more display options. The way your Asus tablet works makes the most sense.

    Or perhaps there is a custom rom that gives more options.

    There is a thread in the Nexus 10 forums about how to switch the native resolution to make it work without scaling. The solution requires you to be rooted. Someone posted info about the Nexus 7 2nd Gen, which is:

    Code:
    I have Nexus 7 2nd gen. Native resolution is 1200x1920 and default density is 320 (though technically the density is about 323).
    
    To get it to work correctly in 1080p, I have to run the following commands as root:
    wm size 1080x1920
    wm density 288
    
    To change it back:
    wm size reset
    wm density reset
    
    If I don't change the density to 288 or smaller, the icons and everything get messed up, especially in landscape.

    The thread is http://forum.xda-developers.com/showthread.php?t=2278508&page=2

    I haven't tried it yet as I don't have a slimport adapter.
    5
    Can you guys check if the charging function of SlimPort can keep up with some heavy usage, like HD video streaming or game playing? But of course you should use the wall warp to provide enough juicy to the tablet.

    I think there are somethings the SlimPort can improve, like turning off the tablet screen while outputting to external display, or even make it dual display.

    I doubt he even has the Nexus 7 at all.

    I'm in China and I can't find such $3 SlimPort rip-off product on taobao.com, it's somewhat priced at $20 equivalently:
    http://item.taobao.com/item.htm?id=21275751349

    Some bad news. Initial observations from last night I streamed a movie through plex at 1080p, and the slimport with attached OEM charger and cable I was very slowly losing battery. I want to do more testing, but it seemed like the slimport either took some of the current for itself or the Nexus7 was using a tremendous amount of it. I will do a test later tonight that can measure the current throughput to ensure that it's charging at full current.

    I did find, however, that with the slimport attached (without microusb charger plugged into it), you CAN wirelessly charge, but I found it to not keep up with the demands of plex and the attached slimport, just like the standard charger. Note when I was doing this test I only had one charging method active at a time, either wireless or through the slimport charging port.

    I will do more tests, but it looks like in general there might not be a way to perpetually output to hdmi through slimport, as I'm not finding a charging method that can keep up with all scenarios, mine using plex as an example streaming 1080p

    Oh yeah, and also, the back of the nexus was pretty toasty.
    4
    I just received my slimport from amazon.ca and it works fine.

    This is the one: http://www.amazon.ca/SlimPort®-SP10...=UTF8&qid=1376666860&sr=8-1&keywords=slimport


    My observations:

    -it doesn't require external power (it is powered by my TV, some may not provide power), but this doesn't charge it

    -plugging a usb cable into the slimport adapter does charge it

    -OTG adapter does not work plugged into the slimport adapter. The slimport adapter trips the ID pin on the usb port, and shuts off the 5v output to avoid current leak. I didn't try with otg adapter + y-cable connect to power source. I will experiment more.

    -the hdmi output is 1920x1080 at 60Hz (on my TV, depends on your TV's capabilities) so there is no lag, very smooth (note that many devices limit to 24Hz or 30Hz at 1080p and it looks choppy)

    -unfortunately the output is pillarboxed by default. This can be fixed by doing (as root)
    wm size 1080x1920
    wm density 288

    then reset with:
    wm size reset
    wm density reset

    I don't think this is something to be fixed in kernel, the kernel is doing what it's supposed to with respect to output resolution to lcd and hdmi.

    Someone should write a daemon or system service that detects hdmi status and runs these commands automatically.