My laptop has NVIDIA Optimus technology, which seamlessly switches between the integrated graphics and NVIDIA discrete GPU to provide an optimal balance between battery life and performance. There is an LED indicator on my laptop that indicates when the discrete GPU is on.
However, some unknown app causes the discrete GPU light to turn on even though I haven't launched a game or other GPU-intensive app.
How do I find out what app is using the discrete GPU so that it doesn't suck down limited battery power?
The laptop runs Windows 10 Pro v1511 64-bit.