All you have to do is connect the monitor to the CPU using a USB cable in addition to the usual installation ( check the slots available on the monitor for the type of USB cable you need ), then all your USB slots on the monitor will come alive. Its just like a USB extender ( except that this is included in the moniter).
I had similar problem after Windows Update. Instead of Generic USB HUB I had HX2LP Kit (3.03.0000.2). I update driver using old Generic USB HUB driver from Windows. After this everything in back to normal.
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Your computer should notify you that something has been plugged into the USB port. I have a small rectangular charger, but it has a button on the end, when pressed, it has 4 dots that are blue when charged, red if not. So, when all 4 are blue, I'm ready to use it. Without that signal system, I do not know. Sorry.
which USB are you referring to? if usb cable connection , try with a different cable, if USB port for flash drive, try usb port with another functional flash drive or test your flash drive onto another device to test for functionality.
The USB ports on the Benq monitor is a USB hub. Connect a USB cable from the USB port on the computer to the input USB port on the Benq. Then you can connect any USB devices to the USB port on the Benq and the computer will see this device.
One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems (mac/ Linux) similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especially true if you move a HUB to another port 6. For FLASH DRIVES you should ensure that the device is set for "quick removal" using the drive control panel properties or use the USB "Safely Remove Hardware" option. If you dont do this there is a very strong chance that any files you transfer may not be there when you plug into another computer.
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE. Any exclamation marks by hardware need fixing before you investigate any further
USB flash drives can fail for no apparent reason. Sandisk Cruzers are especially bad for this.
USB hard drives should be treated with extreme care. This is a real hard drive ! and knocks and bumps can quite literally kill them.
It is possible to remove drives from the enclosures in most cases and connect directly inside a PC to fully check it. You should also do this to cheack the drives connections are not bad inside the enclosure
Note that if you hear a drive clicking or pinging this could be the worst thing you would hear. Known as "The Click Of Death"
If none of the above steps help look at updating the drivers from the manufacturers web site in the support section.
The USB hub/connections cannot be used for driving the monitor... It is only an extra feature so that you can connect USB devices (such as a mouse & keyboard or flash drive) at the monitor instead of the computer ports.
You must use the RGB/VGA connection to use the monitor.
When you turn ON the monitor, it should "announce" itself with a logo...
When you were given the monitor, were you told that it works?
This is a simple HUB that has two type A receptacles and one type B receptacle; you use a printer style plug to connect the Type B receptacle into an available USB port on your computer. Then one port becomes two. It's not a powered hub from what I can see (the ports are on the base, which isn't wired to the monitor, so no power), so that rules out most external hard drives. I don't know of any monitors that use USB for anything, but printers, flash drives, cameras, and the standard small gadgets should work fine on it.