Product name: HP ENVY TS 15 Notebook PC
OS: Windows 8.1
Whenever I close my laptop , thus entering it into sleep mode, and then i re-open it, the touchscreen function does not work. The only solution I have found is to manually put the laptop to sleep before closing, which is counter-productive to just closing it. The only way to then get the touch screen functionality back is to completely shut down the laptop and turn it back on.
Also, my screen occasionally experiences a change in the brightness level sprodaically without any settings being altered with.