Even though I have been in contact with a lot of you via private messaging I have not posted on this thread in a while. There are signs this may be a broad industry issue, but we realize it is personal to you, and Dell is working diligently to ensure our customers have a responsive display with consistent reliable touch functionality.
We have possible solutions that we want to recommend. There are a number of different possible causes, so the ultimate solution for you may be different to other customers on the forum.
If you find that the touch screen won’t work at all, you may need an eDP (embedded Display Port) cable replacement. It is important you contact technical support in your area or contact me directly through private message.
If you have some touch screen functionality, I have a couple of suggestions that should improve performance if not correct the issue all together.
• Windows Updates - I have mentioned this earlier in the thread, there are some Windows hotfixes and updates to help with touch screen issues. Please make sure that the system will not go to sleep, have the AC adapter attached to the system and run Windows updates.
• Power Management - Adjusting the power management settings seem to have the biggest impact on touch screen performance. This is what you do to adjust these settings:
o Go into device manager (just swipe charms and search for device manager or press the Windows key and X key together and choose device manager from the menu). Once in device manager, look for HID and USB devices. Check each one that has a power management tab and make sure that "Allow the computer to turn off this device to save power" is unchecked. This is so that the touch screen isn’t turned off to save a little battery power.
o Check power management settings (swipe charms and search for control panel and then power options, or Win and X key and power options). Select balanced or high performance.
o You can even go into your power plan advanced settings and change the USB and display settings making sure that neither is being turned off ever.
• Win 8 Touch Calibration - Go into calibrate (control panel, hardware and sound, tablet PC settings, calibrate) and tap or click calibrate, don’t worry about trying to calibrate, just tap or click reset and see if that helps.
If you know that Windows is fully updated, and adjusting the power management and calibrate settings doesn't work please message me if you haven’t already. Just click on the link in my signature and then click start conversation and please include the service tag of your notebook.
I will be happy to help.
