Switching to 1080p fixes the chroma issue. With regards to 4:4:4 chroma, even dropping down to 25Hz is no help, it’s clearly running in 4:2:2. I’ve had a further play and I can actually get an output at 60Hz after tweaking switchresx ( ) but the picture loses all sharpness similar to that seen at 30Hz. Regarding bpc, i’m using the “millions of colors” option in switchresx. Just in case I’ve ordered a new cable ( …) so will give this a try as soon as it arrives. Regarding the cable I’m using, i’m not sure of it’s origins but it’s marked as a high speed cable. Anything above 8bpc is limited to a refresh rate. That said, would you be able to let us know the specific HDMI cable that you are using? I’d like to confirm that it is HDMI 2.0 capable in order to support and 4:4:4 chroma.Īlso, would you happen to know the color depth “bpc” setting that your graphic settings our running? Our adapter can only support with 4:4:4 chroma at an 8bpc as defined by HDMI 2.0 specification ( …). As it seems you have found, using SwitchResX or other 3rd party applications must be used on previous Mac systems in order to create a custom resolution to achieve 4K at 60Hz, however, in our experience some customers have better results than others. Unfortunately, is tricky within Mac OS and we may not be able to resolve all of the issues you are experiencing, but I am happy to help investigate what may be happening. I have written about it in detail in this article.Hi Paul, thanks for posting. Search high resolution on a 13-inch screen isn’t it usable at all but I am still able to use 2048X1280. While the ‘Displays’ setting in System Preference will give you the highest resolution of 1680X1050, while this tiny utility lets you choose resolution up to 3360×2100. This small utility unlocks a lot of resolutions for your MacBook along with refresh rate and aspect ratio. Once you download and install SwitchResX, you will find a new option appearing in System Preference. So even after going through the checklist mentioned above you have got everything in order and you still not getting 4K at 60 Hz, this tiny utility is going to make it easier for you to select 4K at 60 Hz. If you already have got a compatible HDMI cable, you can also go for an HDMI to USB type C adaptors, but only the ones that specifically mention it is compatible with 4K at 60 Hz.Īlso, if you want to purchase a multiport adaptor for MacBook, you should specifically look for the compatibility, since the majority of multiple adaptors available for MacBook can only handle 4K at 30 Hz. Most recent Macbook have got Thunderbolt / USB type C slot, so you can get HDMI to Type C cable, but make sure you buy an HDMI to USB type C cable that specifically mentions it is compatible with 4K at 60Hz. If your monitor only has got a compatible HDMI 2.0 slot, then you will have to go for adaptors which will convert HDMI cable to the desired output slot available on your MacBook. If you have got an expensive monitor, which has got a thunderbolt output, it will be easy for you to connect your MacBook to the 4K display and run it at 60 Hz since thunderbolt it is compatible, and you can get them for pretty cheap prices from. If you pass this checklist of having a compatible MacBook and having a display with HDMI 2.0, the last thing that you need to make sure it’s compatible is the cable you are going to connect your Macbook with the display. Is your HDMI cable compatible for 4K at 60Hz? But HDMI 2.0, which was released in 2013, is capable of running a 4K display at 60Hz. There is already a version newer than HDMI 2.0, and it’s called HDMI 2.1 which was released in 2017.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |