Archive for August, 2006

Gotta Get a Gefen (HDMI switch)

Wednesday, August 2nd, 2006

My gearFunny how easy it can be to accidentally create need in our lives.  About a year ago this time I had a simple big-screen TV (used to do the projector thing, but the wife didn’t much care for it), a DVD player, surround sound, and an Xbox.  Then around Thanksgiving I see this great sale on a 32″ LCD set from Syntax Olevia, and I buy one.  A week or so later and I get a Comcast HD DVR, hook it up with component video cables, and am happy in HD-land. 

But then I discover HDMI and learn a few more things about HDTV.  And I get a Moviebeam and a Samsung upconverting DVD player. And everything became a problem, as I literally had to leave HDMI cables dangling behind my mess of a ‘rack’ and picked up a DVI-HDMI adapter from the ‘Shack.  Everything looked good on-screen, but was a major pain to manage.

Gefen 4x1 HDMI switchUntil I discovered Gefen.  Gefen sells a variety of products all designed to help clean up the variety of messes caused by, funny enough, upgrading to HDTV.  Simply put, most LCD and plasma displays only have one or two HDMI/DVI inputs.  I have 3 HDMI sources.  Compounding the matter my Syntax has a DVI input.  Boys and girls, we are in luck, because they make a video switch with four (yes 4) HDMI inputs and a DVI output.  They call it, simply enough, their 4×1 HDMI switch.

The unit comes in very simple packaging (somewhat like Sonos – I guess the more expensive the equipment, the less refinement that goes into the box), and includes a few cables which might come in handy depending on your particular configuration.  Also in the packaging is a simple setup/installation guide (plug A into socket A, etc) and a 4-button remote control.

Gefen 4x1 HDMI switch packagingGefen 4x1 HDMI switch box contentsBaby blue cablesGefen 4x1 HDMI switch and remote

Gefen 4x1 HDMI switch in handThe Gefen 4×1 switch is fairly small, about the size of a tissue box, and is finished in a metallic silver and light blue combination.  I personally think it has a bit of a ‘refined elegance’ to its appearance.  The back of the unit has power and the four HDMI inputs, while the front has a couple of LEDs, the DVI output, and a discrete remote control input.

Gefen 4x1 HDMI switch front viewGefen 4x1 HDMI switch rear view

Gefen 4x1 HDMI switch in action - top viewHooking up the Gefen was beyond simple, nobody (and I mean nobody) should have any problems with it.  I have a grand total of two complaints about the product, and here’s the first one:  the DVI output is on the front of the unit, which made placing the device a lot more complex than needed.  The problem for me is I need the ability to control the Gefen via infrared (using my handy-dandy Harmony 880 remote), so it needs to be ‘in view’ in my rack of devices (which is really just a shelf, but I can dream).  This creates a very awkward setup where the switch is underneath my LCD, and the DVI cable effectively snakes back around behind it, then up to the LCD.  In the grand scheme of things, its only a nuisance, and the company assures me the next version of the product has all the ports on the back.

Gefen 4x1 HDMI switch in action - front viewThe two LEDs on the unit show power (the red light – on or off), and input (the blue light – one through four).  The remote control has 4 buttons, which are labelled one through four, and switch inputs accordingly.  I guess that’s probably pretty obvious, but I like the simplicity so much I wanted to make sure that came through!  Complaint number two is the LEDs – I’d like an option to turn them off, or just lower the brightness significantly.  Definitely being nitpicky, but otherwise this would just be an overly glowing review, and we can’t have that, can we?

On to the technical side for a moment.  The Gefen switch properly passes through an HDCP signal, which is very important for copyrighted content.  Moviebeam, for example, only outputs HD content if it detects an HDCP-enabled output, and my Comcast HD DVR is also aware of HDCP (although I don’t believe it makes a difference at present).  Actually, I’ve discovered (and dutifully reported) a slight flaw with the Moviebeam device as a result of moving to HDMI.  It turns out if the Moviebeam unit is powered up without detecting HDCP it boots into standard-definition mode, and it also turns out the unit reboots itself every now and then with software updates.  What this adds up to is a problem whereby I have to physically remove the power from the back of Moviebeam, and then plug it back in and let it reboot if I want it back into HD mode.  Hopefully the Moviebeam guys will take my suggestion of adding a ‘redetect HD’ option somewhere in the advanced options menus.  Sorry for the long digression, back to Gefen!

Another feature for the technically sophisticated folks is the Gefen switch has an RJ-45 connector to allow for discrete IR control.  If those words don’t mean anything to you, well, you can probably scroll down a little bit.  For consumers who have built a home-control system, you can easily integrate the switch into your setup, and allow other devices and control systems to ‘talk’ to the Gefen unit.  As I stated above, I use a Harmony 880, which does include Gefen products in their amazing database, so didn’t try out this feature of the switch.

In summary, I really like the Gefen 4×1 HDMI switch.  If you have more than one digital HDTV source, you might need a switch.  If you currently use component cables because you don’t have another solution, you might need a switch.  If you have every episode of Hee-Haw on tape, you might be a redneck.

My cable messAs I said earlier, my needs were multiple HDMI inputs, single DVI output. You may need a different combination for your particular setup, and lucky for you, Gefen offers a few different switches to choose from!  The one I tried here retails for about $300.  Chalk down the next version of the switch (with all inputs/outputs on the back) as “LD Approved” and this one as “really really good, but needs one fix to be perfect”.

Now if only I can clean up my cable mess, I’d be one happy guy!

It’s magic, right?

Wednesday, August 2nd, 2006

How computers work, ha. There are little elves that jam the printers! It’s like the Matrix, 1s and 0s all lined up, and they squiggle around all green-like! The internet, a series of tubes, right? That’s what the man said! I got this stuff DOWN.

Sometimes I feel horribly ignorant (but NO I don’t believe any of the above, now stop it!) and when I do, I feel the need to ingest far too much information at one time, so much so that I am almost guaranteed to forget every little snippet. It still feels pretty academic in the moment, though.
My latest wave of inadequacy is over computers. Born in 1985, I kinda missed the early bits (heh, bits) of computery goodness, and it’s sort of like a little hole in my soul. The history intrigues me. Also, one of my excuses for not driving a car is that that I feel like I would have to learn about how they work at least a little so I could do things like change the oil, switch out a flat tire, etc. How then, do I justify knowing exactly diddly-squat about the inner workings of computers? (Don’t ask me to justify my cell phone, my DS, the metro, my shoes, please. I realize it’s a silly roundabout way of getting to the point, but I thirst for knowledge!)

Luckily, this handy book comes along in it’s shiny 8th Edition: How Computers Work. Very ingenious title, I must say, but it gets the point across. Published this past November, the new edition is “Fully updated with coverage of multi-core processors from Intel and AMD; the North Bridge and South Bridge chip sets; digital cameras and photo editing; the iPod; TiVo; spyware and anti-spyware; PCI Express; SLI dual video cards; overclocking and overcooling; plasma displays; Internet security, spam, and chat rooms; plus a complete, new section on PC gaming.” In other words, it covers a LOT of stuff, and that’s only the recent additions.

Unfortunately, this bugger is in hot demand at the library, so I’ve got to take it back before finishing the entire thing. I will put it back on hold, myself, though, because I actually am enjoying it enough to finish it. Plus, I haven’t gotten to the good parts (“Games and Multimedia” and “How the Internet Works”) yet! Each part of the book starts with a timeline of relevant history (which often overlaps between sections) and then launches into a myriad of explanations ranging from “How PCI-Express Breaks the Bus Barrier” to “How eBay Sells Everything,” all with colorful and thorough visual aids. Note that this really only covers the Windows PC, but the author does recommend How the Mac Works for the Apple crowd. Oftentimes I still felt like things were going over my head (i.e. “How Memory Cards and Smart Cards Work,”) but hey, at least I know what a bit is now.

For the already techie folks of the world, this may not be the most useful book on the market, but for the curious mind craving an introduction to a broad range of PC technology, it’s certainly recommended.