Another USB question

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Phileas

I have a CTX PR1400F monitor which can be used as a USB hub. My PC has 4
USB2.0 ports (2 pairs).
When I plug the USB lead into a particular port of either pair, the CTX root
hub appears in device manager. When I plug it into one of the other ports it
becomes an unknown device and doesn't work.

Is there a difference between the two ports in a pair?

Phileas
 
Did you ever install drivers for this hub?

Plugging a USB device into a different USB port makes it a "new" device and
required drivers to be loaded again.
 
Noozer said:
Did you ever install drivers for this hub?

Plugging a USB device into a different USB port makes it a "new" device and
required drivers to be loaded again.
Click to expand...

I've never needed to. I simply plug the cable in and Windows recognises it
as a CTX root hub. The driver is from Microsoft.

Phileas
 
Phileas said:
I have a CTX PR1400F monitor which can be used as a USB hub. My PC has 4
USB2.0 ports (2 pairs).
When I plug the USB lead into a particular port of either pair, the CTX
root hub appears in device manager. When I plug it into one of the other
ports it becomes an unknown device and doesn't work.

Is there a difference between the two ports in a pair?
Click to expand...


I'd plug it into the one that works and forget about why! :-)
 
Phileas said:
I've never needed to. I simply plug the cable in and Windows recognises it
as a CTX root hub. The driver is from Microsoft.
Click to expand...

Very odd...

It should work on any of the USB ports then.

Do other devices work on those ports?
 
Phileas said:
I have a CTX PR1400F monitor which can be used as a USB hub. My PC has 4
USB2.0 ports (2 pairs).
When I plug the USB lead into a particular port of either pair, the CTX root
hub appears in device manager. When I plug it into one of the other ports it
becomes an unknown device and doesn't work.

Is there a difference between the two ports in a pair?

Phileas
Click to expand...
chances are you have 2 USB hubs onboard, and the pairs of ports are
attached to different hubs. I have done this before - installed drivers
for one hub and not the other. When it comes up as an unknown device,
go to reinstall/update drivers and it should find it automatically

--
-Luke-
If cars had advanced at the same rate as Micr0$oft technology, they'd be
flying by now.
But who wants a car that crashes 8 times a day?
Registered Linux User #345134
 
beav AT wn DoT com DoT au said:
chances are you have 2 USB hubs onboard, and the pairs of ports are
attached to different hubs. I have done this before - installed drivers
for one hub and not the other. When it comes up as an unknown device,
go to reinstall/update drivers and it should find it automatically
Click to expand...
I tried to point Windows to the what I assumed was the correct driver which
I found in the list (it was called CTX USB hub which is the same as the name
that automatically appears for the other ports) but it claims it was not
written for specifically for my hardware and I end up with a yellow
exclamation mark in device manager.

Phileas
 
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