1. USB dongles mean you have to have drivers, etc.
2. HDMI transmitter dongles work without regard to OS.
But all this and I can't tell if you would be annoyed by LAG. No one would do this if they were gaming or using it as their primary display.
I've spent the last few hours researching different Wireless HDMI technologies and I'm trying to figure out if there is anything out there that will provide all of the features I need and if not, what my best option is compromising on certain features.
Some of the models I've been looking at include:
Warpia Wireless USB PC to TV
AirTame Wireless HDMI
IOGEAR Wireless HD Computer to TV Kit
Nyrius ARIES Prime Wireless HDMI Transmitter & Receiver for HD 1080p 3D Video Streaming - NPCS549
DIAMOND Multimedia WPCTV1080H VStream Wireless USB PC to TV at 1080P
I'm not trying to choose between these guys specifically but they are mostly what I've come across so far in my research that represent the basic functionality of what I'm looking for. I am very open to other suggestions.
My primary goal here is to have a laptop running Linux (Ubuntu 13.10 presently) with a dongle plugged into it, transit video and audio wirelessly (video to an extended monitor preferred) to a receiver that is plugged into a TV through an HDMI cable and to an amplifier/sound system through a digital medium (coaxial or optical cable).
Using Linux limits my purchasing ability to units that do not require sotware or support linux (AirTame supports Linux which is nice, Nyrius doesn't require software).
I've been made to understand from this article:
that a transmitter using WirelessHD requires line of sight to the receiver and caps out at a distance of about 30ft. whereas a transmitter using WHDI can pass through walls and reach distances closer to 100ft. This would make WHDI my primary consideration after the need that the transmitter be a dongle as opposed to a powered device requiring cables.
Then I came across this:
Which confused me because it says that it is WHDI but only transmits a distance of 10m with Line of Sight. This has me wondering if I can get any better of a connection with a dongle.
My next consideration was whether I wanted a transmitter that was a USB dongle or one that was an HDMI dongle. I would prefer a USB dongle because it would allow wireless transmission from laptops or computers without HDMI, however I would not want to sacrifice signal quality. It seems from what I can find that Nyrius offers the best signal with the least latency but with an HDMI transmitter, so I don't know if a USB transmitter is an option for me but if anyone knows of one that can do responsive 1080p video without latency I would love to check it out.
I have not been able to find any devices with digital audio output through optical or coxial. In the worst case scenario I can run an optical out from my TV to the sound system, but this is less ideal than having a separate digital output coming directly from the receiver.
The last consideration I had was being able to manage multiple inputs and outputs. A receiver at each TV obviously with cables and power, but if:
a) the receiver had additional inputs for hardwired connections or additional wireless dongles
b) the receivers can send a copy of the signal to another receiver connect to another TV (and maybe sound system).
laptop w/ dongle outputs audio and video to external monitor
Receiver @ TV1 picks up signal w/ HDMI cable output to TV and optical cable output to amplifier
Receiver @ TV2 picks up signal (either from first receiver or from dongle directly) w/ HDMI cable output to TV (no sound b/c in same room as TV1 w/ sound system)
Receiver @ TV3 (upstairs in a different room) picks up signal w/ HDMI cable output to TV (video and audio or just video with separate audio from optical or 1/8 inch)
And receivers could also have HDMI inputs to manage your other devices like game consoles, dvd/bluray players, cable boxes, etc.
From what I've gathered on the internet, I'm kind of talking about a combination of two different kinds of products. One that involves powered transmitters and receivers that can copy signals to multiple output sources, and another that involves wirelessly transmitting HDMI from one source to a powered receiver.
So at this point I'm open to any input. I'm seriously considering the Nyrius Aries Prime and am going to do some more research to see how well people have got it working in Linux. It seems to provide the least latency and, short of a digital audio output, provides the essential functionality I need (as I said I can run optical out from the TV to the sound system and adjust for delay). If anyone knows of a similar device with digital audio output that would be very helpful. I'm also curious if I can add additional receivers to copy the signal (I will contact the manufacturer about this).
Hopefully I wasn't too confusing. If I could put it simplest:
Something like the Nyrius Aries Prime with digital audio output and hdmi inputs that can have multiple receivers to copy signal.