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Old 09-27-2013, 01:02 PM   #1
Ruud
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Thumbs up Did network copy test..

Hi TBM, downloaded the 10GB test file and copied it over the network (1Gbit) to another server: it worked.
In the beginning fairly constant, but then on and off, on being around 60MB/sec max, off: 2 - 3 MB/sec. It sort of looked like it was choking on the line or something.
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Old 09-28-2013, 06:00 PM   #2
tbm
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Great that even while transferring 10GB files you still haven't had any black-out! Hoeraaaaaay!

Well now we can confirm that the left usb port is the issue for all of this...

Unfortunately i can't test it with my own dock (the second one from DELL) isn't functioning anymore... Only had it running for 3-4 days and when i've powered on my laptop on day 5 it wasn't recognized by Windows. I even can't get it to work on a fresh clean installed Windows 8 system....

I've called DELL for a solution for my problem, but still no answer....
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Old 10-01-2013, 06:26 PM   #3
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Default XPS13 USB HS Port Not Docking

USB 3.0 Super Speed (right side of the XPS13) is best. The dock should work on both the left side USB2.0 port and the right side USB3.0 port.

However, the latest FrescoLogic Host Controller driver version 3.5.100.0 seems very stable for USB3.0 in the right side SS port, but the HS port on the left seems to have gone incompatible for docking on the Dell XPS13 LS321 with Targus dock ACP71. The Device Manager shows a yellow bang on the USB hub from the dock as if they are incompatible. The XPS13 LS321 does dock with the Targus ACP70. They do have two different USB hubs chips and I will check with the vendors to determine compatibility issues.

Does is appear the same with the Dell XPS LS322 containing the Intel USB Host Controller?
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Old 10-04-2013, 08:29 AM   #4
tbm
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@Ruud

And? No more black-outs since you've switched?
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Old 10-04-2013, 01:24 PM   #5
longplaypg
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Dell XPS 13 (L322X)
Intel USB 3.0 chipset
Kensington SD3500V
Anker USB 3.0 Dual Video

Left USB 3.0 superspeed powershare has had problems with the displaylink docks with the provided USB 3.0 cables between the laptop and displaylink dock

Right USB 3.0 superspeed has performed much better wit the displaylink docks and the provided USB 3.0 cables between the laptop and displaylink dock

Currently I am testing a theory by using a USB 2.0 A male to B male with dual ferrite cores between the laptop and displaylink dock. I am waiting to see a failure so I can collect logs and see if support sees the same USB errors they were seeing when I was using the USB 3.0 cable.

Update
USB 2.0 cable did do better. Eventually I hit the possible memory leak issue. At least the support items I submitted did no show USB errors according to the displaylink support. Makes me wonder about that USB daughterboard and the cable that connects it to the motherboard. I haven't cracked it open yet to see what kind of cabling they used.

Last edited by longplaypg; 10-07-2013 at 07:28 PM.
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Old 10-07-2013, 09:06 PM   #6
tbm
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@longplaypg

Thanks for the info, and testing!

Today i've received my third Dell D3000 dockingstation. Now running for 3 hours on the RIGHT USB port and a clean Windows 8 installation with the lastest USB/DisplayLink drivers.

In this stage i haven't experienced any black-out...... (yet)

Working on the laptop, and extended the display via HDMI to my TV, playing videos with VLC

I think i'm getting an longer USB3.0 cable to connect to dock with the laptop. Because the length of the original cable is wayyyyyyyyy too short

Or is the provided USB3.0 cable something special??
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Old 10-08-2013, 09:56 AM   #7
Ruud
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Smile Still no black-out!

Hi all,

I just want to say that I did not have any black-out since starting to use the right USB port..

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Old 10-08-2013, 02:09 PM   #8
longplaypg
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Quote:
Originally Posted by tbm View Post
I think i'm getting an longer USB3.0 cable to connect to dock with the laptop. Because the length of the original cable is wayyyyyyyyy too short

Or is the provided USB3.0 cable something special??
From my experience I have 2 USB 3.0 cables.

One that is clearly marked e301195, super high speed, USB revision 3.0, with the proper USB 3.0 connectors and thicker cable. Waiting on confirmation no USB errors in debug logs, but works the best to me.

One that is not marked at all, with the proper USB 3.0 connectors, and a thinner cable. Thinking this one may not be full USB 3.0 support and causing some USB errors in support logs.

I was thinking about testing with a 3rd cable that is longer with dual ferrite cores, labeled for USB 3.0 super speed, and proper USB 3.0 connectors. I just haven't bought one yet.
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