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Thread: Keyboard input lag with 13.04 on MacBookPro 10,2

  1. #1
    Join Date
    Sep 2013
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    2

    Keyboard input lag with 13.04 on MacBookPro 10,2

    Hi all,

    I have recently installed 13.04 on MacBookPro retina (10,2). Seems to be working a treat after a few hiccups failing to get 12.04 working reasonably well.

    However, the internal keyboard is incredibly laggy, dropping keystrokes etc unless typing v...e...r...y....s...l...o...w...l...y! You get the picture. Works fine with a usb-attached external keyboard (Logitech K120). This works fine for when I'm at my desk, but not ideal for on the move!

    Any ideas why or how to make a start on diagnosing?

    Thanks, daz

  2. #2
    Join Date
    Aug 2007
    Location
    a puddle in Manchester
    Beans
    9,205
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Keyboard input lag with 13.04 on MacBookPro 10,2

    Not really, I'm afraid.
    I have a MBPr 10,1 and in my first 13-04 installation I would be typing a post and then the cursor would jump to somewhere in the text that was miles away. If I didn't immediately notice I would make a huge mess of my post.
    No lag was particularly apparent though.

    In my most recent Ubuntu installation (the 3rd) things seem to be fine.

    I would ask though whether you selected the Macintosh version of keyboard in the settings (English UK - Macintosh / English US - Macintosh etc etc)?
    MacBook Pro 10,1 retina

  3. #3
    Join Date
    Sep 2013
    Beans
    2

    Re: Keyboard input lag with 13.04 on MacBookPro 10,2

    Thanks for the response Quackers. That is quite strange - was there any differences in configuaration / etc. between the installs?

    Does changing the keyboard in settings actually change the driver or just the key-mappings? I've tried putting English UK - Macintosh and similar but doesn't fix the lag issue.

  4. #4
    Join Date
    Aug 2007
    Location
    a puddle in Manchester
    Beans
    9,205
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Keyboard input lag with 13.04 on MacBookPro 10,2

    There were no differences between the installations but I had changed some settings in that first one.
    I would think it's the key-mappings but that's just a guess.
    MacBook Pro 10,1 retina

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