Display Latency Problem Macbook Pro

Discussion in 'MacBook Pro' started by Kufo, Nov 30, 2015.

  1. Kufo macrumors newbie

    Joined:
    Nov 30, 2015
    #1
    Hi there;

    I´ve recently bought a Philips 4K Ultra HD 55". When I connected mi MBP 15" (early 2011) with a HDMI Cable and a Mini DisplayPort to HDMI Adapter (4K) everything goes slowly in Philips. I choose Displays/Mirror Options and i can see the latency with trackpad or magic mouse and cannot work with it because it´s really awkward.

    Before this, I had a normal HD monitor with a Mini DisplayPort to VGA adapter and worked perfectly. No latency, no problems with input lag.

    I know that my MBP (early 2011) has Thunderbolt 1 and Display Port 1.1 and the maximum size is around 2000x1000 but maybe somebody has a solution to eliminate this latency.

    Extra problem: I´ve tested it with the same TV, the same Adapter and the same HDMI cable but with a MBP Retina early 2015 and the problem it´s that MBP recognize the PHILIPS but the PHILIPS show me nothing. I did it with adapter and directly with HDMI cable without Adapter. The same test with a MBP retina (2014) and the same problem, Retinas recognize the TV but I see nothing on it. But nevertheless my MBP is older and works but with latency.

    Many thanks to everybody and sorry me for my English.

    Kufo
     
  2. Samuelsan2001 macrumors 603

    Joined:
    Oct 24, 2013
    #2
    Thats because your MBP doesn't support 4k screens you need display port 1.2 to get anything above 24 frames per second, when that mac was made there weren't any 4K TV's you can't expect it to work. Apple rates it on monitors and TV's up to 1600p. There is no way round this

    The newer rMBPs work at 60Hz with 4k screens just fine many people here are using them although compatability can be an issue.
     
  3. Kufo thread starter macrumors newbie

    Joined:
    Nov 30, 2015
    #3

    Then... why can I not see my Philips with the newer rMBPs, no 2014 either 2015 rMBPs. Both detected the TV but cannot see on it.

    Thanks.
     
  4. Samuelsan2001 macrumors 603

    Joined:
    Oct 24, 2013
    #4
    I have no idea but if I had to guess I would imagine it is some firmware compatabilty issues. Have you updated the TV firmware???
     
  5. LIVEFRMNYC macrumors 603

    Joined:
    Oct 27, 2009
    #5
    And to add on to what Samuelsan2001 said .... check your TV specs. Some 4K TVs only input HDMI at 30hz or have specific ports for 60hz. Also, upscaling can be an issue too.
     
  6. magnumpi macrumors member

    Joined:
    Sep 24, 2012
    #6
    I think the issue might be caused by the video processing stuff on your TV. Look for the game mode on your TV settings or manually disable all the fancy stuff like motion smoothing and such.
     
  7. Kufo thread starter macrumors newbie

    Joined:
    Nov 30, 2015
    #7
    I have no solution yet. Someone has another idea? I´ve already bought a 1.2 Displayport adapter.
     
  8. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #8
    - The issue with the 2011 machine can't be fixed. It's just what it is because of a low refresh rate.

    The 2015 can do 60 Hz via the Thunderbolt ports. But perhaps your TV can't. Which adaptor do you have?

    Also make sure your OS X is up to date.
     
  9. Toutou macrumors 6502a

    Toutou

    Joined:
    Jan 6, 2015
    Location:
    Prague, Czech Republic
    #9
    The refresh rate has nothing to do with latency!
    Well, it has, but not with the kind of latency the OP is telling about.
    If the image on the TV is half a second or so behind what should be happening, your TV is to blame. Switch it to a "game mode" or disable any kind of image enhancing you may have enabled.

    If the image doesn't feel smooth but every action happens instantly, just like it should — that is the low refresh rate. Nothing to do about that.
     
  10. jerryk macrumors 68020

    Joined:
    Nov 3, 2011
    Location:
    SF Bay Area
    #10
    Isn't what the user describing when they say "I choose Displays/Mirror Options and i can see the latency with trackpad or magic mouse and cannot work with it because it´s really awkward.", jumping of the cursor as they move the mouse. That seems like the display is not refreshing often enough to the cursor jerks across the screen rather than smoothly scrolling. Versus having the cursor start moving 1/2 second after they move the mouse.

    Kufo, could you describe in detail what you are seeing as "latency". Is it delay after you move the cursor, or jerkiness in the display as the cursor moves along, both, or something else?
     
  11. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #11
    - You're technically right. Though I think what the OP is describing sounds a lot more like a low refresh rate than a half-second latency.
     

Share This Page