Hello Everyone
I have spent the best part of a week searching the web via google and online retailers looking for an answer to this. I'm hoping somebody out there has already been in this position and worked it out. I have bought myself a 4K TV, LG 49UB850V. It's a cracking TV and has really impressed me so far with the upscaling it does on Blu Rays and Netflix (roll on actual 4K access to Netflix later this year). What I really bought this TV for though is my PC as I use my PC as a multimedia centre as well as a gaming rig. I have an adequate card to support 3840 x 2160 resolution at 60FPS (an AMD HD7990 which only has Mini DP and DVI out ports) and have thrown Batman Arkham Origins at it and it was running at 55-58 FPS whilst I played. However, I experienced screen tear which I thought was unusual. So I put vertical sync on and with FRAPS I saw my FPS was capped to 30Hz.
Now, I'm not technically stupid, I built this PC myself and have a good understanding of how things work. The LG TV came with a HDMI 2.0 lead which supports 4K up to 60Hz, this is being used, cable therefore removed from the equation or possible cause. Next is the input port, in this case, HDMI socket 3 which the instruction booklet told me to use. This is the only socket that will support 4K up to 60Hz. Check, this also can be knocked off the list. The GPU is clearly capable as well and was achieving greater than 30FPS, so the only thing remains is the Mini DP to HDMI adaptor that came with the 7990. I've looked everywhere and cannot find an adaptor that supports 4K up to 60Hz. I've also looked for a straight for a Mini DP to HDMI 2.0 cable, no luck there either. I believe that Mini DisplayPort along with HDMI 2.0 are the only sources able to support 4K at 60Hz, so why would my current adaptor not be capable of supporting this? Also, why are all the adaptors I see online also only showing 4K up to 30Hz?
In a nutshell, I would really appreciate it if somebody could tell me where I can find a suitable adaptor or cable or advise if I'm doing something wrong with the TV itself. So far, LG haven't been very helpful and their first response was just that 4K technology is very new and there may not be anything that currently supports the technology in the UK. I quickly responded to such a ridiculous comment, surely they can't be selling TV's without the necessary cable support!
Thanks for your time and for taking the time to read this thread.
I have spent the best part of a week searching the web via google and online retailers looking for an answer to this. I'm hoping somebody out there has already been in this position and worked it out. I have bought myself a 4K TV, LG 49UB850V. It's a cracking TV and has really impressed me so far with the upscaling it does on Blu Rays and Netflix (roll on actual 4K access to Netflix later this year). What I really bought this TV for though is my PC as I use my PC as a multimedia centre as well as a gaming rig. I have an adequate card to support 3840 x 2160 resolution at 60FPS (an AMD HD7990 which only has Mini DP and DVI out ports) and have thrown Batman Arkham Origins at it and it was running at 55-58 FPS whilst I played. However, I experienced screen tear which I thought was unusual. So I put vertical sync on and with FRAPS I saw my FPS was capped to 30Hz.
Now, I'm not technically stupid, I built this PC myself and have a good understanding of how things work. The LG TV came with a HDMI 2.0 lead which supports 4K up to 60Hz, this is being used, cable therefore removed from the equation or possible cause. Next is the input port, in this case, HDMI socket 3 which the instruction booklet told me to use. This is the only socket that will support 4K up to 60Hz. Check, this also can be knocked off the list. The GPU is clearly capable as well and was achieving greater than 30FPS, so the only thing remains is the Mini DP to HDMI adaptor that came with the 7990. I've looked everywhere and cannot find an adaptor that supports 4K up to 60Hz. I've also looked for a straight for a Mini DP to HDMI 2.0 cable, no luck there either. I believe that Mini DisplayPort along with HDMI 2.0 are the only sources able to support 4K at 60Hz, so why would my current adaptor not be capable of supporting this? Also, why are all the adaptors I see online also only showing 4K up to 30Hz?
In a nutshell, I would really appreciate it if somebody could tell me where I can find a suitable adaptor or cable or advise if I'm doing something wrong with the TV itself. So far, LG haven't been very helpful and their first response was just that 4K technology is very new and there may not be anything that currently supports the technology in the UK. I quickly responded to such a ridiculous comment, surely they can't be selling TV's without the necessary cable support!
Thanks for your time and for taking the time to read this thread.
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