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Post by Admin on Jul 13, 2016 14:18:18 GMT
DreamScreen does NOT support 4K at this time.
DreamScreen currently supports HDMI 1.4 and is compliant up to 1080P 60Hz. This limit exists because the DreamScreen is not HDMI 2.2 compatible and is designed for HDMI 1.4. The DreamScreen Splitter will switch to 1080P when trying to route a 4K signal through it. Simply switching the HDMI Splitter will NOT force DreamScreen to run in 4K.
We are working on bringing DreamScreen to 4K, but cannot provide a release date at this time.
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Post by freddy on Jul 14, 2016 16:34:07 GMT
We are working on bringing DreamScreen to 4K, but cannot provide a release date at this time. Well, in the comments section on Kickstarter you said you wanted to have it ready before Valentine's day 2017... I hope that is still a feasible target date.  And to avoid misunderstandings: "We are working on bringing DreamScreen to 4K" means a new version of the DS, right? This is not something that could be fixed with a firmware update. In the meantime, it would already be great if we could find a splitter/scaler that is able to scale down to 1080p (for DS) on one output, while having an unmodified bypass on the second output. There are already several of these scalers on the market that support upto 4K2K @30hz, and slowly but surely, a few models are emerging that support full 4K@60Hz (although those are still very expensive). I know you ordered and received the Coboc scaler (with 4K2K support) that I wrote about on KS... please let us know asap if that scaler works with DS. [Edit] initial response in this thread suggests the Coboc isn't suitable for DS... |
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Post by waldolc on Jul 19, 2016 21:27:49 GMT
Okay, just to clarify, the lights will not work if the signal is 4K, correct? It has to be at least 1080p, right? I ask because I have a 4K TV and I switch my video signals through a receiver that upscales any signal that isn't 4k. Thanks for your help.
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Post by lab714 on Jul 19, 2016 21:58:06 GMT
That is correct. The current DreamScreen version does not support 4K and the content can be upto 1080P 60Hz.
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Post by waldolc on Jul 20, 2016 4:21:48 GMT
Thanks for the reply. I'll buy it as soon as it does 4k, because I'm tired of only having white light behind my screen. I total want this.
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Post by Tyler on Aug 8, 2016 18:27:01 GMT
So are you saying that the lights will not work, even with a new splitter, if the TV is displaying 4k? It cant interpret the 4k signal or dummy it down to 1080p?
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Post by freddy on Aug 8, 2016 21:01:17 GMT
Correct. The splitter that is supplied with the DreamScreen, can handle input signals upto 1920 * 1080 / 60Hz (HDMI 1.4a). It cannot handle HDMI 2.0/2.2, which includes 4K signals. If the source feeds a 4K signal to the splitter, there will be no output signal, so both your TV screen and the DreamScreen lights will stay black (that's from personal experience). There are some other splitters available that *will* work with DreamScreen and are able to downscale a 4K2K UltraHD (3640 x 2160)/30Hz input signal to 1080p, but note that they will always give the SAME signal on both output ports, so even though the input signal is 4K, both of the output signals (both the one to your TV, and the one to the DreamScreen) will be 1080p. With the current generation of splitters, you cannot have 4K on the TV, and 1080p on the DreamScreen. Also, as far as I know, there are no known splitters available that can handle input signals upto 4K2K UltraHD (3640 x 2160)@60hz or full 4K (4096x 2160) (and that are compatible with DreamScreen). The one option that *could* work to get a 4K signal on your TV, and still use the DreamScreen lights (@1080p), is a splitter/scaler, such as goo.gl/LXwAJM or goo.gl/WuLi9A. This would scale down the input signal to 1080p on one output (to the DreamScreen), while providing a 4K bypass on the other output (to the TV). Unfortunately, first test results with the Coboc scaler (the cheaper one of the two) seem to indicate, that it doesn't work very well, and is not compatible with DreamScreen.  Nothing is known yet about the other one. |
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Post by Edward Rivas on Aug 11, 2016 2:28:58 GMT
I have an alternative method that has worked flawlessly for me. I recently purchased an Denon AV receiver that I made sure to get one that specifically does two zone outputs. My current setup goes as follows.
Zone 1: My LG OLED 4k 55" Flat screen
Zone 2: DreamScreen (Minus the input to a TV itself)
The way it works... AV receiver will transmit through both zones independently and upscale (or downscale in my situation) based upon the resolution on the other end.
So in the end, I was able to view 4K content via Zone 1, and have that same signal transmitted over Zone 2, as 1080p. Worked like a charm!
Hope that helps. I would suggest any AV receiver that can handle multiple zone transmissions.
Ed
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Post by jonnieboyrevel on Aug 11, 2016 18:37:26 GMT
Hi
Which Denon do you have?
My Denon does 2 zone output but only outputs the same resolution on both zones.
Regards
Jonathan
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Post by ReQuiem222 on Aug 11, 2016 21:34:18 GMT
Same Problem here :/
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ed
New Member
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Post by ed on Aug 14, 2016 0:05:06 GMT
I had posted a few days up as guest but wanted to reiterate more so I created an account here.
More info on my current setup, which has allowed me to use my DreamScreen with 4K televisions.
TV: LG OLED 4K 55" (Flat Model) AV Receiver: Denon AVR-S910W
I have the Denon AVR-S910W AV Receiver. It outputs to both zones in 4K.
Zone 1 manages all my other video signals via HDMI. (All inputs have 4K passthrough so nothing gets downscaled ever)
Zone 2 just duplicates anything Zone 1 is currently set to. This is where I have the DreamScreen ported through (It downscales the signal down to 1080p but does not affect the output of Zone 2)
TV itself should have game mode on as it decreases the input lag enough to match with the sync of Zone 2.
So far I am using my MacBook Pro to output to the TV at 4k while duplicating the signal via Zone 2 directly to the DreamScreen, which is not connected to any other display.
Ed
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Post by freddy on Aug 14, 2016 7:58:10 GMT
ed I assume you're still using the DreamScreen WITH the splitter on the zone 2 output, as the DreamScreen itself cannot downscale the signal to 1080p. But then you can just leave 1 of the 2 splitter outputs empty... Either that, or the Denon is smart enough to downscale the signal before sending it to the DreamScreen...
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Post by mad on Aug 14, 2016 11:05:43 GMT
Hi, it´s really nice, that it´s working for you, but I´m still a little bit confused. Maybe you can elaborate more on the Denon scaling capabilities? Thanks in advance. Usually receivers with dual output/multi-zone capabilties can only scale up input resolutions and pass the result to both outputs (or can output two different sources at the same time). The Denon manual contains a scaling table (I hope, those strange urls are permanent) --> manuals.denon.com/AVRS910W/NA/EN/GFNFSYxchsdjun.php which basically shows that each input resolution can be scaled up to 4K like any other 4K receiver. Then there is a little link to another page: -> manuals.denon.com/AVRS910W/NA/EN/GFNFSYmlxuhedk.php#OKNRMLcnwjosoq which shows that "480p/576p / 1080i / 720p / 1080p / 1080p:24Hz / 4K" can be automatically selected by the receiver for the HDMI MONITOR OUT...but I would guess that this means only that input would be scaled up as well. The splitter provided with the DreamScreen is a really simple splitter with no downscaling capabilities at all, that´s for sure. Scaler with downscalers are expensive in comparison (150-400 EUR ). So if the Denon does all the work, then this would be a really nice and probably unique feature and I think I would have to buy one! Btw: how do you connect your Macbook to the TV? As far as I know, the macbook only outputs 4K at 30Hz over HDMI, so the Denon needs to upscale to it to 60Hz at least. Or do you use the display port? |
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Post by freddy on Aug 14, 2016 12:29:08 GMT
@mad "No downscaling capabilities at all" is definitely incorrect. The splitter provided with DreamScreen (this one: www.amazon.com/gp/product/B00QMPJON6/ ) *does* have downscaling, it just cannot handle 4K. This particular splitter has a maximum of 1080P/60Hz (1920 * 1080 / 60Hz) - but it has no problems downscaling such an input signal to for example 720p or 480p. Also, receivers who can downscale the signal for the output ports is definitely not a "unique feature"... most current generation receivers are able to downscale the signal to match that of the TV (or other device) that is connected to the output port. This Denon can obviously do it, and so can my Sony receiver. And why would the Denon need to upscale a 4K 30Hz signal before sending it to the TV? Most 4K TVs can handle a 4K 30Hz input signal just fine... |
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ed
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Post by ed on Aug 14, 2016 12:49:03 GMT
@ Freddy : The latter is correct. My AV receiver appears to check before outputting to the lower 1080p resolution. Sorry for the phrasing of how zone 2 works. Just realized it could be taken as the DreamScreen does the downscaling itself. The DreamScreen itself never outputs to a television when connected. Only receives the input via AV.
@ Mad : I am using a mini display port to hdmi 4K adapter from Moshi. My specific Denon AV receiver did not allow my Mac complete passthrough due to some HDCP issues so I had to purchase a 4K splitter to strip that protection. That may not be the case for other AV receiver brands.
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Nothing is known yet about the other one. 