Posts by hhargreaves

    Hi,

    I am trying to set the refresh rate in the libreelec settings to 60hz while the resolution is set to 3840x2160, however for some reason the max refresh rate I can select is 30hz. I have been trying to debug this for the best part of a couple of days, so I am turning to the community for help!

    The TV I have is the Samsung 65" RU7100 which supports 4K at 60hz, and the cable I am using also supports 4k and is a micro HDMI to HDMI (this is the second cable I've tried and no luck with either).

    I am, using the HDMI 0 port on the PI (port nearest to the power connector) and I've added hdmi_enable_4kp60=1 in config.txt.

    What's wired is when I tested this on one of my monitors (the Dell U2718Q) which also supports 4k I could select 60hz, so I think the problem is specific to my TV. But I have also looked in the TV setting for an option like "Deep Colour" (I read that sometimes you have to change a TV setting to enable 60hz), but I can't find any relevant setting. The only option I found was HDMI "Input Signal Plus", but I think that is used for UHD and didn't have any effect.


    These are the cables I've tried and both work with the 4k monitor (I can choose 3840x2160 and 60 Hz refresh rate), just not the TV.

    Cable 1: KabelDirekt 1.5m Micro HDMI to HDMI Cable compatible: Amazon.co.uk: Electronics

    Cable 2: UGREEN HDMI D HDMI A , Cable, HDMI Type D , HDMI Type: Amazon.co.uk: Electronics

    Running tvservice -m CEA returns:

    Any help or advice would be greatly appriciated!