Fixing Touch Screen Delays / Lost Input on a Lenovo IdeaPad Yoga
Tuesday, 30 October 2012
I got a Lenovo IdeaPad Yoga this weekend (loving it!) but noticed an annoying quirk – the different Windows 8 edge swipe actions seemed to require two swipes. A few reviews have run into this as well, such as this one from ZDNet.
Once you got it reacting to your swipes, though, everything was instantaneous. After experimentation, it turns out that not touching the screen for about 4 seconds was enough to put it into this double-swipe mode – which is evidence of some sort of sleep mode.
It turns out that this doesn’t just cause edge swipes to go missing – it causes a general feel of sluggishness and lack of reaction. You click a button, and it doesn’t register. You click again, and it finally does.
After a bunch of digging and unrelated searches, it turns out that it is indeed a sleep mode issue – the driver for the touch screen has the option enabled to let Windows put it to sleep.
The solution is simple:
- Open Device Manager
- Go to “Human Interface Devices”
- Go to the last USB Input Device (my Yoga has two), then “Properties”
- Open “Power Management”
- Unselect “Allow the computer to turn off this device to save power”.
If that doesn’t resolve the issue, then select the box again and try it on the other USB Input Device(s).