G+_Rud Dog Posted February 23, 2015 Share Posted February 23, 2015 Recently purchased the LG 34 UMG95 and liked it from the start. Not much later wanted to add a Desktip PC to the 1 of 2 HDMI ports and after some testing was able to switch between my PC running XP and other pC running Windows 7. Where I ran into a problem was when attempting to switch to the one and only DisplayPort attached to my Roku, it just wont' work. Now it does require a different cable well to me anyhow, never heard of a DisplayPort to HDMI cable but purchased one and attached it. And yes tested the output of the Roku same monitor but over the HDMI port worked fine. Any input is welcome.? Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted February 23, 2015 Share Posted February 23, 2015 I'm going to assume that you have a DisplayPort to HDMI cable. Those do not work the other way around. HDMI to DisplayPort adapters exist, but they are much more expensive ($100+). At that price, you'd might as well get an HDMI switcher.? Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted February 23, 2015 Author Share Posted February 23, 2015 Akira Yamanita interesting comment had to think awhile at first thought you were being funny you know like the left handed wrench. Actually not sure it is understood fully so let me explain what my purchase was as far as the cable goes. This cable allows me to plug into any HDMI port like on a computer or on my Roku the other end plugs into the back of my monitor's DP-IN port. Hope that clarifies what I was asking. If you could elaborate your description on cable functionality it would be appreciated. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted February 24, 2015 Share Posted February 24, 2015 Rudy Trujillo I'm not messing with you. While DisplayPort and HDMI connectors are both reversible, the signal conversion is actually quite different. DisplayPort output ? HDMI input works using a cheap passive cable HDMI output ? DisplayPort input requires an expensive converter such as this one: http://www.startech.com/AV/Converters/Video/Active-HDMI-or-DVI-to-DisplayPort-Converter~HDMI2DP Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted February 24, 2015 Author Share Posted February 24, 2015 Thank you Akira, now let me see if this makes sense I have a display port on the back of my described monitor and taking the out put of the Roku which is HDMI which of the described setups would I need based on this configuration. Appreciate your patience in this setup. Oh while I am searching for answers on this monitor what are the thunderbolt connections outputs or inputs and to what end? Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted February 24, 2015 Share Posted February 24, 2015 Thunderbolt is more or less a PCIE extension port. It's high bandwidth but I don't think it's directly compatible with HDMI. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted February 24, 2015 Share Posted February 24, 2015 Rudy Trujillo Your case is HDMI output ? DisplayPort input, so you would need the expensive adapter. :-( Neither PC has a DisplayPort output? A Thunderbolt connector on a Mac could be used as a Mini DisplayPort connection, so you could connect the monitor using a simple Mini DisplayPort to DisplayPort cable, but I'm not sure if you could use a DisplayPort output on a device to a Thunderbolt input on a monitor. Either way, it doesn't help with your HDMI output situation. Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted February 24, 2015 Author Share Posted February 24, 2015 Akira Yamanita thank you for all the information Akira, can't believe manufacturers would leave this hidden nugget concerning cable connection most people just go in and ask someone for a cable with the help of staff @frys. Will review the link again you posted in this Q&A. Ben Reese Don't know what PCIE is? Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted February 25, 2015 Share Posted February 25, 2015 PCIE = PCI Express = (Peripheral Component Interconnect) Express. It's the primary method used to use interface new cards (network interface cards, graphics cards, drive controllers...) to your motherboard. Link to comment Share on other sites More sharing options...
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