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Thread: HDMI not working after upgrade to 13.04

  1. #1
    Join Date
    Feb 2012
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    11

    HDMI not working after upgrade to 13.04

    Hi. Sorry if this is in te wrong section or been asked before. Since I upgraded to 13.04, my HDMI out doesn't work. The screen has lots of bars or is totally green, or some other wird pattern. It doesn't show any hint of whats meant to be displayed. I can confirm that this is not the cable. Is there a fix for this?

  2. #2
    Join Date
    Jan 2010
    Beans
    3

    Re: HDMI not working after upgrade to 13.04

    Exactly same problem. I am using the other digital output of my video card, but would like to switch back to the HDMI if possible.

  3. #3
    Join Date
    Feb 2009
    Beans
    38

    Re: HDMI not working after upgrade to 13.04

    http://ubuntuforums.org/showthread.p...6#post12632616

    upd. sorry, it seems that's not the answer for your problem
    Last edited by skeve; May 4th, 2013 at 08:47 AM.

  4. #4
    Join Date
    May 2007
    Location
    Virginia, USA
    Beans
    13,235
    Distro
    Ubuntu Mate Development Release

    Re: HDMI not working after upgrade to 13.04

    Hey folks ... we're not mind readers here! How about some info about the following: (1) what version of Ubuntu you upgraded FROM, (2) what make and model video card you're using, (3) what video drivers you used before (restricted or open-source)?
    Ubuntu 16.10 Mate, Mint 18 Mate; MS Win 8.1, MS Win10 Pro.
    Will not respond to PM requests for support -- use the forums.

  5. #5
    Join Date
    May 2005
    Beans
    15

    Re: HDMI not working after upgrade to 13.04

    I am having the same problem. Posted details here

  6. #6
    Join Date
    May 2005
    Beans
    15

    Re: HDMI not working after upgrade to 13.04

    I've found this post about what seems to be the same problem. While it suggests that installation of something called Bumblebee might solve the problem the poster favors the installation of a recent beta nVidia driver (nvidia 319.12) as a better solution. He points to this ( "dirty" ) method of getting that driver installed: http://paste.ubuntu.com/5601226/

    I don't really understand a lot of this. I gather that Nvidia provides a technology called Optimus , originally intended for laptops but now marketed for desktops under the name "Synergy". To minimize power usage, Optimus switches the kind of graphics processing used depending on the nature of the task -- so that it only uses its more energy-intensive heavy guns when they are necessary. The technology has been released in easy-to-install packages for Windows and Mac but is not yet fully supported under Linux (which is why it's necessary to install the beta). But I don't understand what any of this has to do with the card being able to detect an HDMI display.

    I am now working up the nerve to try implementing the "dirty" solution mentioned above. Any helpful observations or comments (or words of warning, for that matter) would be welcome.

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