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Many laptops will allow you to work with two external monitors, but few offer dual digital output. Generally you have to use one hdmi connection and one vga connection. This is ok for gaming, light usage, etc., but when it comes to longer programming days, the digital output is much much easier on your eyes.

So far I've found some laptops that support both hdmi and displayport, but I'm not sure if it's possible to connect two monitors digitally through these connections like with hdmi/vga. For example the Alienware m17x offers these two ports but can you connect both of them to each their own monitor?

Any suggestions on how to connect two monitors digitally for a poor programmer that doesn't want to ruin whatever's left of his eyesight reading blurry text.

Bonus: High resolutions of 1920x1200 per external monitor would be great!!

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75% accept rate
I thought the same question this week. – Jared Updike Aug 28 '09 at 19:46
For me, this didn't belong here – Juan Manuel Aug 28 '09 at 19:47
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And in here it gets closed if "gaming" is mentioned, so, good precision ;) – Gnoupi Aug 28 '09 at 19:55
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@followsteph, then you are definitely going to need a gaming quality vid card or better. I remember seeing some notebooks with dual nVidia 9600s - that would fit the bill nicely. The trouble is that 1920 x 1200 is the max resolution for so many native notebook cards that pushing 2 is just beyond non-specialty hardware. – Rob Allen Aug 28 '09 at 20:08
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lol, I'm so poor I'm still on a single 17" CRT at home... actually that's sad :-( – mausch Aug 28 '09 at 20:48
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13 Answers

up vote 8 down vote

I develop with a Dell Studio XPS 16 with built-in HDMI and DisplayPort outputs (no docking station required). I convert both to DVI--one to a 20" 1600x1200 LCD and the other to a 24" 1920x1200 LCD.

The 256GB SSD upgrade for $350 is icing on the cake. Best development machine I've ever had.

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So it's possible to connect one monitor with the HDMI port and another on the DisplayPort port? – followsteph Aug 28 '09 at 20:34
Not to mention the XPS Studio 16 is one awesome laptop. I own one =) – The How-To Geek Aug 28 '09 at 20:47
@followsteph - Yes, two monitors at the same time, just as I described. I haven't tried two @ 1900x1200, but I'd be surprised if it didn't work. – Ben M Aug 29 '09 at 2:14
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I think this is a great idea, probably the only viable one. – Jeff Atwood Aug 29 '09 at 6:17
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HDMI to DVI compatibility - en.wikipedia.org/wiki/HDMI#Compatibility_with_DVI – DanM Aug 29 '09 at 17:07
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up vote 5 down vote

Not exactly what you asked for but it might be better.

alt text

GScreen's Dual-Screen Spacebook Coming Soon(ish)

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moving blackboards! – RamyenHead Jun 2 at 13:54
up vote 4 down vote

Just saw this... http://www.engadget.com/2009/08/27/dual-screen-gscreen-laptop-gets-pictured-hopefully-launching-th/

Not sure it's a good gaming laptop or not but looks pretty sweet.

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I saw that this morning as well... Here's to hoping its a strong, reliable machine. – Rob Allen Aug 28 '09 at 19:50
Mother of sweet god. Now if the keyboard would flip out forward and expand to a full 104key that is a laptop I could spend 3K on. – MrChrister Aug 28 '09 at 20:00
This looks like a great laptop :: the kind that never leaves the desk. – ldigas Aug 28 '09 at 21:43
up vote 4 down vote

Dell Precision Mobile WorkStation M6400 (supports this Dell E-Port Replicator -> Dell's Product Page for this specific E-Port Replicator)

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Where do you see that? To quote the specs " 5 x Hi-Speed USB - 4 pin USB Type A ¦ 1 x network - RJ-45 ¦ 1 x display / video - 15 pin HD D-Sub (HD-15) ¦ 1 x display / video - 24 pin digital DVI ¦ 1 x display / video - 20 pin DisplayPort ¦ 1 x eSATA / Hi-Speed USB ¦ Audio" – followsteph Aug 28 '09 at 19:56
Oops, I was looking at the dock specifically designed for the M6400 and didn't realize it. Then I pasted the link to the wrong product. So I guess the Port only supports that one model laptop. – Matt Cofer Aug 28 '09 at 19:59
@Matt that's too bad. It sounded interesting. – followsteph Aug 28 '09 at 20:05
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It does support the E-Port though they don't have it listed on the site. I am using one right now and am connected via the new DSP. :) – ahsteele Aug 28 '09 at 20:23
On another note I love this machine for programming. The screen is big enough when it is mobile and works great on my desktop with 2 24" Dell Monitors. (2408WFP) – ahsteele Aug 28 '09 at 20:25
up vote 2 down vote

IBM W700 has dual screens in the lid.

As for docking, the Dell Precision series with the E-Port Plus port replicator gives 2 DVI outs.

Counts on the programming you're doing. The lower end Precisions are good all around, but for graphics intensive programming and rendering, the m6400 is a monster.

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The Latitude line is also compatible with the E-port series port replicators. – Cory House Oct 4 '09 at 13:31
up vote 2 down vote

Matrox's DualHead2Go looks like it'll split one DisplayPort into two. Then you can use any laptop that has a DisplayPort output.

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That's a great idea. The only problem with both the Dual and Triple Head2Go is that they don't really support higher end resolutions, 1080p or higher at normal 60hz refresh rates. I checked the TripleHead2Go since the Dual didn't support 2 x 1080p, but it does so only at 57hz rather than 60hz, which is really odd... – followsteph Aug 28 '09 at 20:04
I've never used one, but the Dual says "2x1920x1200" at "60Hz" -- isn't that 1080p? – Ken Aug 28 '09 at 23:47
It's actually at 58Hz (the digital outs): matrox.com/graphics/en/products/gxm/dh2go/resolution/digital/… – followsteph Aug 30 '09 at 0:11
I had the displeasure of using a DualHead2Go and my personal experience with it was poor. – MrChrister Sep 2 '09 at 20:44
up vote 2 down vote

Dispite the "not gamming" bit in the title, I believe that the features you are looking for (ability to push 2 external 1920 x 1200 displays, and be responsive while programming) falls squarely in the SLi/Crossfire notebook range, which are entirely geared at gamers.

For example Toshiba Qosimo line, Alienware M17

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up vote 2 down vote accepted

You can use either:

  1. A laptop with multiple direct connections (assuming the drivers support multiple monitors)
  2. A laptop with a docking station that offers multiple connections
  3. Matrox DualHead2Go or TripleHead2Go as long as the resolutions aren't too high
  4. USB to DVI assuming you want resolutions of 1600x1200 or lower.

Thank you everyone for all the great answers!

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up vote 1 down vote

Instead of worrying about finding a peculiar laptop that has it built in, why not just add the functionality onto an existing laptop?

http://shop.lenovo.com/SEUILibrary/controller/e/web/LenovoPortal/en%5FUS/catalog.workflow%3Aitem.detail?GroupID=38&Code=45K5296&current-category-id=F518DEACD67248538629B17343AFFB25

Most usb to dvi adapters don't go to the resolution you're looking for, so if you're willing to scale that back you'd have more options. The one I linked above lists that it will go to your requested specs.

Edit: Just saw a mention of a similar device in a different post - don't know the refresh on this one in particular. Tried looking up the refresh but haven't found it yet. Hope this helps anyhow!

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up vote 0 down vote

I would make sure you get:

  • 8Gb memory
  • Win 7 64 bit
  • 7.2k RPM disk
  • Fasted FSB you can get (1066Mhz)
  • A decent 8-cell battery
  • dedicated video memory - avoid the Intel GMA cr*p

As for the dual monitor thang... We use HP laptops and the docking stations have DVI and VGA outputs of which you can have 2 of 3 (the laptop screen itself being 1 of the 3) working at any one time. Which is OK for 2 x regular square monitors (1280 x 1024).

You'll be lucky to go past 1680 x 1050 resolutions on both screens though - the DVI might do it... Good luck - and post back what you do...

Mike

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up vote 0 down vote

It's going to be tough to find a laptop that support dual montitors built in. I'm using a dell E6400 laptop with the EDock and 2 x 22" screens at 1650 x 1050 resolution. (native for these screens.

Not even the high end MacBook Pros support dual monitor output.

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up vote 0 down vote

This is a question that I have thought a lot about, and search for an answer on. My HP 8730w has HDMI and VGA ports (built in) or DVI and VGA when docked to a HP docking station.

For a dual monitor setup (either with or without the docking station), one of the monitors will always run analog, which I would hate. I haven't even really got a clear answer if it's possible to run 2 x 1900x1200 (which is my goal) when one of the monitors is VGA. (Although the nVidia FX2700 would probably handle it)

I have however found a solution (which I haven't yet tried in practice). By using an external graphics card connected using the ExpressCard connector such as ViDock2. Putting a lower-power fan-less dual DVI ATI card would certainly be more than enough for my programming needs, and I would have dual DVI digital goodness.

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up vote -1 down vote

Dell Latitude D620 is what my company gave me. It doesn't to twin external monitors, but with the dock you have the laptop's screen and one external DVI port. It's got enough power to run my development VMs (running Linux) and the dual displays are really nice.

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I think the original question was quite clear that he wanted 2 EXTERNAL ports. 2 is hard to find, 1 is everywhere. – Jay Bazuzi Jul 18 at 19:50

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