pressing left stick detects no input

Third lowest on the left would be Caps and toggled via Left Stick (LS). The two sticks on your controller can be pressed into the controller as if they were buttons. Press the Left Stick in and you'll change between caps and lowercase.

Personally, it might be just because the controller has been used too much and the strain on it got overwhelming. This has happened to me ever since the GameCube made an appearance. My Day One Edition Xbox One controller has the same issue. I play A LOT
of Call of Duty, so I'm constantly pushing up on the left stick. The controller takes awhile to register its movement, so that is probably why it takes about ten seconds to move. It's literally the same problem for me. All in all, it's most likely worn out.
You may want to check and see if you have a warranty on the controller to get it replaced or get risky and take it apart to find the problem. Also, I've seen people say they'd jolt their control up and down and that would fix their problem. I honestly did
not find that useful seeing as it didn't work. Alright! That's basically it! Hope this helped!

Nearly same thing with me, left stick is stuck moving right, it happened once before and fixed it just by plugging it in with the charge cable, but since then I've also applied the controller update and now plugging it in doesnt fix it.

Press and hold the left stick and press X.

Uh oh! This just happened to me about a half hour ago! Was on Fallout 4 attempting to manage a screenshot when the screen went blank then the TV says No Input Signal. I can turn the console off when I press the X button then move the left stick to where
the Turn Off Controller button would be. Pressing the X button turns the console back on but still getting a No Input Signal message.