Touchscreen inversion/calibration problems

Hi, I’m having problems with the touchscreen for the UM-1000 USB monitor (Serial No: MM1609 300228).

I’ve installed the Windows driver for the touchscreen from the CD that was included with the monitor.

The installation seemed to go well (with Windows 8.1 Pro 64-bit), except the calibration utility does not work.
Also, when the PC is in sleep mode, activity on the touchscreen will not bring it out of sleep mode.

Another problem is the touchscreen seems to be inverted.

When I touch the screen and move to the upper left corner the pointer goes to the lower left corner, and
when I touch the screen and move to the lower left corner the pointer goes to the upper left corner.

Would this be a hardware problem or a software problem or would it be both a h/w and a s/w problem?

We assume that you are referring to the RB-Mim-21. You may want to try these drivers, in case they are more up-to-date then the ones you already have.

The problems you describe seem to be software issues. Also, please note that is it quite possible the drivers do not support waking up the computer since the screen works through USB.

If this does not work with up-to-date drivers, we recommend that you contact the manufacturer directly. You can do so here: [email protected]

I think the link you provided is only for the DisplayLink drivers which I believe do not have any effect on the touchscreen.
Is there a link specifically for the touchscreen drivers?

Also, do you think the inversion of the touchscreen can be fixed by using new touchscreen drivers?
If not, should I get an RMA and send it back to get the touchscreen replaced?

Hi,

The DisplayLink website does mention to contact the OEM ([email protected]) for touch-related drivers. In theory, these should be available through Windows Update and we were unable to find any links to drivers for the touch interface. Since it is single click, it is possible it uses generic HID drivers.

But, as mentioned earlier, the problems you mention seem like software issues. Therefore, we recommend that you do contact the manufacturer for more details about the touch interface and the most up-to-date drivers for it.
They may also have a fix for this situation you are having.

Sincerely,

I tried contacting the OEM as you suggested but no response has been received yet. I decided to try uninstalling the eGalaxTouch driver and reinstalling it. Now the calibration is working and the touchscreen inversion has been fixed!

I think when I had installed the eGalaxTouch driver the first time I had clicked on the check box for using a serial port for the touch controller. That was most likely the reason why the calibration function did not work. When I reinstalled the driver without clicking on the serial port check box, the USB version of the calibration utility was most likely installed instead of the COM port version and I was able to run the correct version of the calibration utility and fix the touchscreen inversion issue.

We are glad you were able to fix this issue. There is very little information available concerning the touch drivers (or anything for these screens, really).

Good luck with your project! :slight_smile: