Display not detected on Targus ACP70USZ

[lightstorm22]

Hello,

I am using a Targus Universal USB 3.0 DV Docking Station ACP70USZ with a Dell XPS 13 (L321X). It has worked fine for weeks, but suddenly whenever I boot up in the morning and connect the USB 3.0 port, everything works except the monitor. No USB display adapter is detected or shows up in Device Manager. No Windows Updates came in the day it stopped working. I had hidden the latest Fresco USB 3.0 update since a friend with the same docking station had issues, but installed it during troubleshooting this problem. I also have the latest DisplayLink drivers, which I uninstalled and reinstalled.

I followed all of the steps in the HOWTO. System Compatibility Check all passes. I have to do several power cycles of the dock along with disconnecting and reconnecting of the cables before it will finally detect the monitor. It is totally hit or miss and I have not figured out a reproducible pattern to getting it to work. I am connected to the docking station with the USB 3.0 cable only. Everything else is plugged into the dock and the monitor is using DVI. I attached the zip file with the logs.

Any help is appreciated. Thanks.

[TargusLevel3]

Hello Lightstorm22,
You have a defective ACP70. Please contact Targus for a replacement under the three year warranty. Tier 1 support may ask you to verify your drivers are up to date, if they do, have them contact me to expedite a swap.

[lightstorm22]

Hello Lightstorm22,
You have a defective ACP70. Please contact Targus for a replacement under the three year warranty. Tier 1 support may ask you to verify your drivers are up to date, if they do, have them contact me to expedite a swap.

I'm really trying, but they are not listening :(

[TargusLevel3]

Hi Mike,
Got your RMA and sent you an email. Let me know if issues persist.
Kevin

[lightstorm22]

Yep sorry I forgot to let you know. Will reply to your email.

[TessKay]

I have been experiencing the problem of my Targus (ACP70EU) dock suddenly not working with my monitor at home. The same model dock IS working in my workplace office.

I noticed a reply in this thread saying that this is a hardware problem that may be aggravated by low temperature. I prefer working in an unheated room at home and it is now cold in the UK! In desperation I have just used a hairdryer to warm up the area round the dock and like magic, within about 30 seconds my monitor is functioning.

It might be completely random but I realise the problems for me have definitely come on in recent weeks when it has been much colder so maybe there is a connection. Anyhow, could be worth a try it if you like! Just please don't do anything too dangerous with heat and electrical stuff....

[rudysroost]

I've spent hours struggling with my ACP70USZ with no success, I found TessKay's post and eventually gave it a try, because I had no other ideas.

It's been cold in my house too and every morning I get up and the displays have stopped working. So, now I unplug the display link take it to my fireplace to warm it up for a few minutes, plug everything back in and it works!

I've tried doing this without warming it up and have been unsuccessful, so I'm convinced that the thing needs to be warmer than 60°F before my displays (and sound port) work properly.

Thank you TessKay, if not for your post, I'd still be struggling.

[HKColin]

I have the same issue. I have to spend 20-30 minutes turning on/off, disconnecting/reconnecting in various combinations before the monitors are recognised. All other USB devices and the ethernet connection are always on.

It is late summer in Hong Kong so my temperatures are closer to 30C, 80F so warming up is not an issue.

[chuko]

I have the same issue with my ACP70USZ. I constantly reinstalled drivers, plug unplug, etc and could never find a pattern of when my docking station decided not to work, but this makes sense. It is has been getting cold the past 3 months and the docking station has more and more issues. So apparently my house is too cold (in the 50s F). I have to walk around with my docking station under my shirt until it warms up and then it works. This really defeats the purpose of this device. I wonder if some of these are defective or do all these have this bizarre temperature dependence.

[IceDevil]

I also have a ACP70USZ that has this same issue... I've placed another thread with my zip file of support information. So are these just not very reliable units?

[TargusLevel3]

Targus is aware of a hardware issue that has been diagnosed with some model ACP70 Universal Docking Stations Items number 60 and lower. This issue is most easily recognized in the Windows Device Manager where no USB Display Adapters and no Targus Giga Ethernet Network adapters are present. It is also when neither of the dock’s display ports or Ethernet ports work at all. The issue is intermittent and temperature dependent over time, showing up mostly at colder temperatures. Manufacturing has produced at ECN for a workaround for all newly manufactured docks but for deployed units that exhibit the misbehavior, please contact Targus for a free exchange.

NOTE, THIS ASSUMES THAT THE PC AND ITS DISPLAY ADAPTOR AND USB 3.0 HOST CONTROLLER ARE UP TO DATE. ALSO, THIS IS ONLY FOR MODEL ACP70 ITEM 60 OR ITEM 51, see the bottom of the dock.

[Chris Arnold]

Targus is aware of a hardware issue that has been diagnosed with some model ACP70 Universal Docking Stations Items number 60 and lower. This issue is most easily recognized in the Windows Device Manager where no USB Display Adapters and no Targus Giga Ethernet Network adapters are present. It is also when neither of the dock’s display ports or Ethernet ports work at all. The issue is intermittent and temperature dependent over time, showing up mostly at colder temperatures. Manufacturing has produced at ECN for a workaround for all newly manufactured docks but for deployed units that exhibit the misbehavior, please contact Targus for a free exchange.

NOTE, THIS ASSUMES THAT THE PC AND ITS DISPLAY ADAPTOR AND USB 3.0 HOST CONTROLLER ARE UP TO DATE. ALSO, THIS IS ONLY FOR MODEL ACP70 ITEM 60 OR ITEM 51, see the bottom of the dock.

Unreal!!! God bless the internet. Using a blowdryer got my docking station to work again! I would never have figured that out on my own. I work in a relatively cool basement, and I guess the docking station is incompatible with that arrangement. I went through tier 1 support, and they could not fix the problem. This thread was the answer. I'm still within my 3-year warranty. May I please have a new docking station, too?

Mine is a #51. I've been working with support since last week, and went through every update I could do: BIOS, displaylink drivers, Nvidia drivers, windows updates, etc....

[mangus580]

Unreal!!! God bless the internet. Using a blowdryer got my docking station to work again! I would never have figured that out on my own. I work in a relatively cool basement, and I guess the docking station is incompatible with that arrangement. I went through tier 1 support, and they could not fix the problem. This thread was the answer. I'm still within my 3-year warranty. May I please have a new docking station, too?

Mine is a #51. I've been working with support since last week, and went through every update I could do: BIOS, displaylink drivers, Nvidia drivers, windows updates, etc....


Amazing! I went out of town for a week - and took my laptop with me. Got home, and it the dock wouldnt work!

Tried the hair dryer - and voila!

Looks like it stays warm when its in use.... and when its unhooked for a while, it acts up.

[mangus580]

Targus is aware of a hardware issue that has been diagnosed with some model ACP70 Universal Docking Stations Items number 60 and lower. This issue is most easily recognized in the Windows Device Manager where no USB Display Adapters and no Targus Giga Ethernet Network adapters are present. It is also when neither of the dock’s display ports or Ethernet ports work at all. The issue is intermittent and temperature dependent over time, showing up mostly at colder temperatures. Manufacturing has produced at ECN for a workaround for all newly manufactured docks but for deployed units that exhibit the misbehavior, please contact Targus for a free exchange.

NOTE, THIS ASSUMES THAT THE PC AND ITS DISPLAY ADAPTOR AND USB 3.0 HOST CONTROLLER ARE UP TO DATE. ALSO, THIS IS ONLY FOR MODEL ACP70 ITEM 60 OR ITEM 51, see the bottom of the dock.

Is this a warranty thing? Or is Targus replacing any Item 60 and 51's out there?

I have 2 Item 51's, both exhibit the same issue. I would like to get them replaced if possible!!

[AlbanRampon]

Hello Mangus,

I'd advise contacting Targus technical support directly, including the dock ITEM# and serial number, to discuss this.

DisplayLink does not design or manufacture USB hubs, so this is not appropriate for us to comment or handle this.

Kind regards,
Alban

[jrenna]

For some reason the Targus ACP70 will not display anymore. It was working last week fine, but now I am having issues.

Tried reboot, repowering, different ports, different laptop, plugging directly into what I am testing etc, but still no luck.

Any idea?

I do not know when this device was purchased.

[meghtitan]

I also have a ACP70USZ that has this same issue.