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ThorsHammer
Posts: 2,377
Registered: ‎04-08-2011
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Re: W520 - why only two external monitors? Anyone from Lenovo?


Ryan95842 wrote:
I totally apologize for raising the dead. I've just not been able to find a lot of information specific to my concern. I got bit with the W500 BIOS problem where the memory upgrade disables the PCI express card slot and that was, shall we say, a bummer. I'm looking for two things in a laptop. 1) 16 gig of ram 2) PCI express/34 card slot for my viDock 3 The W520 appears to meet both of the objectives. I just don't want to drop a bunch of coin then get bit again. As such, I'm trying to find confirmation that I can do both. -Ryan

The T420 also fulfills those requirements at a much lower cost.

802.11n
ZipZap
Posts: 240
Registered: ‎09-19-2011
Location: USA
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Re: W520 - why only two external monitors? Anyone ...

[ Edited ]

 

Hi,

 

    I feel the ViDock is an outmoded solution. I favor Displaylink chipset based devices such as:

 

Toshiba USB 3.0 dual display dock

 

     This will take you up to 4 monitors, 5 if you count the laptop display.

 

                                     ZZ

lead_org
Posts: 18,395
Topics: 108
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Registered: ‎12-19-2008
Location: Australia, Melbourne
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Re: W520 - why only two external monitors? Anyone from Lenovo?

i got the Toshiba USB 3.0 dual display dock, it is piece of junk. It won't work properly in the USB 3.0 ports of most ThinkPads that i got, and it produces artifacts on high resolution LCD when you play video.

I also got the dynadock U which has the same problem when streaming WUXGA video.
Regards,

Jin Li

May this year, be the year of 'DO'!
802.11n
ZipZap
Posts: 240
Registered: ‎09-19-2011
Location: USA
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Re: W520 - why only two external monitors? Anyone ...

[ Edited ]



I have the earlier USB 2 version, Dynadock U, also. It has worked great for years, even driving fullscreen video.

 

I haven't up(down?)graded to the USB 3 version yet, so I can't vouch for it.

lead_org
Posts: 18,395
Topics: 108
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Registered: ‎12-19-2008
Location: Australia, Melbourne
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Re: W520 - why only two external monitors? Anyone from Lenovo?

@zipzap, which version of the OS are you using with the dynadock U? also which version of the driver?
Regards,

Jin Li

May this year, be the year of 'DO'!
802.11n
ZipZap
Posts: 240
Registered: ‎09-19-2011
Location: USA
0

Re: W520 - why only two external monitors? Anyone ...

[ Edited ]



Hi, Lead,

 

    I forget to mention that I also periodically run an older Displaylink device that draws power from the USB port i.e. no power adapter, and drives one monitor only at 1600x1200. It too is a great device. I use it with my old 1600x1200 Samsung.

 

    To answer your question, I run Windows 7 Pro, Displaylink driver version 5.6.31854.0 from 4/10/2011. Guess I'm due for an update, huh?

 

    Yes, I like Displaylink based products a lot, as opposed to the Magic chipset which is pure junk.

 

 

                                                      Best, ZZ

lead_org
Posts: 18,395
Topics: 108
Kudos: 999
Solutions: 1,024
Registered: ‎12-19-2008
Location: Australia, Melbourne
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Re: W520 - why only two external monitors? Anyone from Lenovo?

i like displaylink product when they work. But Vidock gives you more performance for your external display.

with eGPU i can get an ATI 5870 infinity edition and drive 6 external monitors at WQXGA resolution each.
Regards,

Jin Li

May this year, be the year of 'DO'!