Hdmi no longer works

I use hdmi cable to connect macbook to lg tv.
This worked perfectly before recent software update, now sound only and screen saver-- no picture?

Have you tried resetting the nv ram?
     Turn off your mac
     Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
     Turn on your Mac.
     Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
     Hold these keys until the computer restarts and you hear the startup sound for a second time.
     Release the keys.

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    hi all,
    Appologies for the length, but despite my frustrations over aspects of the helix (fan, heat, digitzer not always working etc) I've been happy that I'd bought the device as a "right choice", hence the high level of frustration at things going differently...
    3-4 weeks ago my helix started suffering with up to half the screen no longer working (from simply black to an interference style pattern).  At this stage HDMI out worked as did the digitzer, even if I couldn't see what the pen would click on.
    I phoned up the CH support line (in English) and ended up with a number of nice call center people who said I'd have an engineer out for the next business day.  I then had a period of 3 days without being called, and after chasing on the support was informed a part had been ordered.  Two days later I had a visit from the engineer.
    The on-site engineer, like the call staff, was very nice (even in the face of having to sit in a restaurant to look at the panel).  He returned the device the next day with a brand new panel.  However I then discovered the digitzer wasn't working.
    A week later after a series of remote software installations and bios upgrades another on-site engineer came out.  He too was very pleasent, and was also visibily irratated that the digitzer didn't work after yet another panel swap.
    In all cases I had to chase the support to find out what the current status was.  This I find to be poor customer service - a simple email or status page would have been great and let me know even a little of what was going on.
    Whats worse service is that I still, after chasing again, have no idea what course of action I should take.  One option the engineer gave was to send the device away for up to 4 days (to esag), or perhaps order a new motherboard or other piece....
    This is my first, and at this rate probably my last thinkpad, so I have no idea what I should expect and no great deal of confidence despite the clear best intentions of those with whom I've interacted that even if I send it away I'll get a fixed laptop back.  The knowledge on helix's in ch simply seems to low.
    Does anyone here, lenovo guys of course included, have any clues as to what I can expect / what my next actions should be?
    Cheers,
    Chris

    well to answer my own question and make sure others know to stay away from Helix / possibly Lenovo...
    I had the machine replaced.  The DOA team and the lenovo team were again great, I can't state this clearly enough.  But they are helping on a badly made / designed / engineered product.  It overheats, the pen stops working (usb device not recognized etc), could be the flex in the screen but its definitely a hardware problem.
    The replacement came, worked for 2 weeks and then died.  Then I had to go through the same remote support - install everything - process as before.   Again, as before, the machine was simply not functioning.
    The replacement got replaced.  The new one worked for 6 weeks before it started happening again.  As of last week the pen no longer works at all, same as before.
    Off to start another round of attempting to get a replacement or this time a refund.
    Again to be clear, there is only one device on the market that has the same functionality as this - the Fujitsu, and I love the functionality and the excellent keyboard, but I can't really rely on the machines quality at all.  
    More accurately I can only rely on the lack of build quality :<

  • Mini dvi to HDMI no longer working to t.v.

    Hello. For months I was able to use the mini dvi to HDMI to use my Samsung HD t.v. as a monitor from my Macbook Pro. Suddenly one day when I started it up, the t.v. said "No Signal" and then the Macbook Pro goes to sleep. If I take out the mini dvi it will wake up again, but the moment I put it back the t.v. goes back for a second the way it usually would when it first recognizes the mac, then the mac goes to sleep again. If I look at the built in display, I can see that it isn't even detecting the Samsung is hooked up any more. Could the video card have already gone bad? It isn't even six months old.

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  • Thunderbolt to VGA works find, to HDMI no longer works

    I have a late 2011 model Macbook Pro, running the latest Yosemite update.  I can plug in my Thunderbolt to VGA adapter and everything works just fine.  But when I plug in my Thunderbolt to HDMI adapter, the display will not be detected.  I've tried holding option to manually detect displays and nothing happens.  The screen will flicker as if it senses another display has been connected.  I don't know if this is due to Yosemite, for it worked just fine before the update.

    Hi all,
    I was having the same problem with Yosemite and thunderbolt to HDMI but have found a sort of a solution or at least a bit more info that might lead to someone having a eureka moment. I have a Mac Book Pro, my partner a Mac Book Air. I bought a thunderbolt to HDMI cable from eBay so my partner could plug her Air into the TV. When the cable arrived, it would not detect our LG TV from either computer. So a bit of playing around and this is what I found.
    I plugged the cable from my Pro direct to the HDMI port on the TV and nothing.
    I also tried from the Pro to the HDMI port on amplifier of the surround sound system and again nothing.
    However, if I plug the cable from my PRO directly to the TV HDMI and select that HDMI port on the TV initially still nothing. But if I then plug a normal hdmi cable from my amp to the Mac Pro's HDMI port, suddenly the thunderbolt cable works and the Display Preferences see the LGTV. I checked that the correct hdmi port was selected for the direct connection and I could even turn off my amplifier to make sure that I was not seeing the wrong signal and it still worked.
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  • Acer 9500 projector hdmi no longer works

    The other day I turned on my projector and it will no longer recognize any input through the 2 hdmi. I tried a different hdmi cord and another source but it still wont recognize anything.  I sent it off to find out what is wrong and they told me it needs a new main board for $1100. Is that right? Is it not possible to fix the hdmi input without replacing the whole main board?

    Rebelbac,
    If the projector is not under the manufacturer's warranty you are at the mercy of whoever you sent it to. If you did not try with the Acer technical support in your area, you can try and see if they have any out of warranty options. The other option is to purchase the motherboard yourself and install it, the HDMI connections are part of it.

  • HDMI connection no longer works after Windows 8 download

    Hello, 
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    Thanks in advance!

    Hello KatieMcK
    Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
    I understand that you are not able to connect your notebook to your TV using Windows 8, and I would be happy to assist you in this matter!
    For further assistance, I will need to know:
    The Product and Model Number of your notebook computer.
    The version of Windows you had installed on your computer before upgrading.
    If your computer has completed all of its important Windows Updates.
    If you have updated your HP drivers using the HP Support Assistant.
    If this is an on-going, or recent issue.
    If you are able to use your TV to another HDMI connected device.
    Please re-post with the results of your troubleshooting, as well as the requested information above. I look forward to your reply!
    Regards  
    MechPilot
    I work on behalf of HP
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

  • IPad 2 hdmi connector no longer works with iOS 7.3

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  • HDMI port of Portege R830 no longer working

    Hello,
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    Regards, Kattie

    I don't have information on that model because it's Canadian, and this is the site for Toshiba USA. You should contact Toshiba in your region.
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  • HDMI mirroring no longer works on 10.8.4

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    Justin

    Try http://support.apple.com/kb/ph4405 (reset PRAM with CMD ALT P R on reboot) as that fixed the issued with my Matrox DS1 Thunderbolt Hub after the Thunderbolt Firmware Update to 1.2

  • Iphone 4 since upgrade to ios 5.1.1 no longer works with made for itunes, iphone devices.

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    Agreed. Same thing here. Just bought a late model Alpine INE-S920Hd and it is all kinds of broken. I think this is happening because Apple shifted the music and video. Totally buggy. Bluetooth refuses to work properly, too. A2dp keeps stealing the audio from Pandora in the Alpine interface. The ipod controls dont work at all.

  • HDMI output not working since firmware upgrade

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  • My mini dvi output port is no longer working (2007 iMac) please help!

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    Last edited by Morn (2012-11-23 19:24:00)

    You might get. Ore assistance in a different forum area. Maybe try Using pad. This is the forum for iPhoto for iOS.

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