Root Is TV-out Possible?

Discussion in 'Android Devices' started by Joelgp83, Jul 30, 2012.

  1. Joelgp83

    Joelgp83 Well-Known Member
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    Hi guys, this is my first time posting here after 3 months of lurking.

    I've got my wife's old Galaxy Prevail, which has been deactivated since she moved on to a Transform Ultra, that I've basically re-purposed into a pocket wifi/emulation/gaming device, and I've put CM7 on it. So far I've been quite impressed with it's emulation and 3D performance, for a "low-end" smartphone the Prevail has a LOT of spunk. :cool:

    That being said, I was wondering if it's possible, either by use of an accessory or an app, or a software hack, if I can get any sort of TV-out functionality, so I can turn it into a pocket console.
     

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  2. RTLflat

    RTLflat Well-Known Member
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    No. Even some of real galaxys can't do that. I had a fascinate and it had hardwear that support it but kernel driver or something never released. Even if prevail had hardware there no software to use
     
  3. Joelgp83

    Joelgp83 Well-Known Member
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    Aw, really? That sure spoils my plans for fun. I was hoping the Prevail would have shared enough of the innards the main Galaxy line to pull it off, particularly with an USB>MHL adapter -- kinda like when graphics card makers get lazy and use the identical chips in their high and low end lines, but just leave stuff dormant in the low end line.

    I'm sorry to hear about the TV-out situation with the Fascinate. However, if there is another phone that has that hardware and has a functioning TV out driver, would it not be possible to rip it out of that phones' ROM and transplant it into the Fascinate?:idea:
     
  4. RTLflat

    RTLflat Well-Known Member
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    Galaxy s got few variations all with hardware but only captivate had it working and fascinate n mesmerize didn't. Or something like that. S2 can. Idk y they couldn't do it probably gotta be experienced programmer to do all that. A lot of fascinate devs had moved on to other devices when I had it.,
     
  5. Rarewolf

    Rarewolf Well-Known Member
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    What! Of course its possible!
     
  6. Rarewolf

    Rarewolf Well-Known Member
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    You'll have to use a PC for it.
    An app that lets you use your prevail on the PC.
    And then hook the PC to a TV.
    And presto you'll have a ghetto TV out.
     
  7. VoltronMaximus

    VoltronMaximus Well-Known Member
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    You got the name of that app?

    And heres my billion dollar idea; why are there no network tvs being made? I know theres tvs that can connect to the internet, stream media and do Netflix, but why not a real networked tv? Without having your pc in the living room, you could access the pc through the tv. That would be something to make me purchase another tv. The tv would come with a remote/slide out mini keyboard. For the mouse, it can be a touch pad built into the remote/keyboard. Or could also make a blue tooth mini keyboard. Just an idea:rolleyes:
     
  8. Lordvincent 90

    Lordvincent 90 ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
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    Not good for gaming tho... Has a delay... And with tv there is an audio delay (phone speaker plays sound, on pc the video is behind...)

    So ghetto is a good assessment.. Lol
     
  9. Joelgp83

    Joelgp83 Well-Known Member
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    :laugh:

    I think I'll file that solution as "entirely too much effort". My wife would probably kill me for attempting to frankenstein the phone, TV and computer together just to play a game.

    Besides, wouldn't it be far simpler in concept to have an app that would merely grab whatever's in the framebuffer, package it into an HDMI-compatible transmission format and shove it out the USB port?:stupido2:
     
  10. Lordvincent 90

    Lordvincent 90 ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
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    if you figure that one out let me know!
    :D:D
     
  11. Joelgp83

    Joelgp83 Well-Known Member
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    Oddly, I may have found an app that does just that.

    I found HDMwIn for Evo 4G while searching Google play.

    While it seems to be written with the Evo 4G, it seems compatible (read: doesn't crash) with the Prevail, as I was able to install and launch it. However, I don't have an MHL cable to actually test the supposed HDMI mirroring with.:(

    When I click "Start Mirroring", it says "Cable Undetected", as though it polled the port and failed to find a cable, as opposed to trying to interface with an HDMI chipset (or what-have-you) and failing. Perhaps it may be able to find and work with an USB>MHL adaptor.....:pcguru:
     
  12. Lordvincent 90

    Lordvincent 90 ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
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    sweet! let me know if you get it figured out! :)
     
  13. Rarewolf

    Rarewolf Well-Known Member
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    Like I said mine was a ghetto way. And its a compromise to getting a rare cable like an HDMI from USB.
    Never even heard or seen one!
    Lila
    And its an alternative.
    I haven't tried it. Don't feel a need to have a TV out unless it would really be a kick ass game like back stab or sumthin.
     
  14. RTLflat

    RTLflat Well-Known Member
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    It don't lag on evo like screencast do on computer?
     
  15. VoltronMaximus

    VoltronMaximus Well-Known Member
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    I have a mini USB to HDMI cable that I got with my HD video camera. I wonder if using the mentioned app will work. If it does work, Ill report back with pics of it working.


    EDIT: I thought it was a mini USB but was wrong. The USB end is a little too large for the Prevails USB port. Damn.
     
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  16. Bloodawn

    Bloodawn Well-Known Member
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    sounds like your cable is mini usb like you thought, but the prevail uses micro usb.

    [​IMG]
     
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  17. Joelgp83

    Joelgp83 Well-Known Member
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    You'd think they'd use better terms to seperate the difference between connector sizes than two synonyms.:rolleyes:

    Anyway, the connector I'm talking about is one of these. I plan on getting one myself once all my bills for the month are accounted for.

    Keep in mind that if it is true that the Prevail chipset does not have MHL circuitry tucked away somewhere, then we may need to connect it in this order to get the phone and TV to see each other (my best guess):

    1.Connect a separate USB charge cable into the port on the side of the MHL adapter.

    2. Connect TV to HDMI side of MHL adapter, then turn TV on.

    3. Connect USB side of MHL connector to Prevail's USB port.

    4.Activate HDMwIn, cross your fingers, and click "Start Mirroring".

    Hopefully, the app knows to poll the USB port for any active connections. Since devices connected with HDMI look for each other's handshake signals (that thing where they tell each other their display capabilities, I forget the term they use for it), the TV should already be sending feelers through the HDMI cable>MHL adapter, and hopefully HDMwIn can see it and respond without a dedicated hardware chipset.:alberteinstein:
     
  18. Rarewolf

    Rarewolf Well-Known Member
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    What duh furk I Shuster heard?! O_______o
     
  19. VoltronMaximus

    VoltronMaximus Well-Known Member
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    Nope, its not a mini, its the shape of the micro but about twice the length.
     
  20. Joelgp83

    Joelgp83 Well-Known Member
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    Yes, I make crazy guesses about stuff sometimes. Either that or I AM crazy.....obviously.

    Argh, I've seen that before on an old Verizon flipphone of mine. I think its supposed to be a USB cable with a proprietary connector so they can force you to only buy their cables.
     
  21. creed10

    creed10 Well-Known Member
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    My friend was developing such a kernel for the Samsung galaxy s epic 4g. It was wayyy too buggy and he couldn't publish it because you couldn't even use emergency 911 calling. So... no its not possible. Sorry
     
  22. vce2005

    vce2005 Well-Known Member
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  23. Joelgp83

    Joelgp83 Well-Known Member
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    Bad link, man. Getting a 404 from Amazon. And yeah, I linked to a similar cable from amazon earlier in the thread. I just can't buy it yet; I don't get paid that often (unemployment, ugh...), and I gotta get my bills squared away first.

    But, betwen that and that HDMwIn app I also mentioned earlier, I really hope it can be pulled off. Though perhaps we need a USB host mode driver first....:hmmmm:
     
  24. wetbiker7

    wetbiker7 Well-Known Member
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    That link is good. I just tried it and it worked perfectly. :p
     
  25. Joelgp83

    Joelgp83 Well-Known Member
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    That's really odd. I just tried it now, and.......I'm still getting Amazon's custom 404 error page.:pcguru:

    Not sure why, either.
     

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