Unfortunately, 10.5 brought about a cabin camera driver monitoring bug that primarily effects taller drivers... or at least, it appears that that's the case.
Chuck Cook talks about this quite a bit, and I'm also being hit by it (I'm 6'1").
I NEVER take my eyes off the road when using FSD. Ever. I have to ask my wife about what the message was on the screen when I get audible alerts. I also "ghost steer" the car the entire time, but that's a different discussion now that you can tell what caused the nag (steering wheel or cabin camera) by the type of alert produced.
Anyway, I will constantly get "Pay Attention" cabin camera induced nags while looking straight forward at the road. Constantly. Other tall drivers are reporting the same thing, and Chuck Cook is now one strike out away from getting kicked out of the Beta.
The work around that does seem to help is wearing very dark sun glasses so that the camera can't see my eyes. I'll still get the occasional ding, but the frequency of them drops to the point that I don't need to worry about getting a strike.
10.5 was so bad that I couldn't drive for more than one minute (no sunglasses) before I got the first nag, then ten seconds until the second nag. I never risked turning it back on after two quick nags like that without putting sunglasses on.
This only occurs with the Beta stack... freeway driving is fine.
Edit: Yes, I do have the driver seat down as far as it'll go.
I disagree with the "tall driver" hypothesis. I'm 6'3", I've been in FSD beta since the first batch of 100's, and I've literally NEVER seen the "pay attention" message. I also commute roughly 30 miles round trip off highway with FSD engaged basically the entire time, 5 days a week, so I'd have plenty of opportunity to have it come up.
Some data points that may be relevant:
- My car is a Model 3 delivered in November 2019
- I've driven lots with and without sunglasses, and during daytime, sunrise/set, and nighttime (haven't tried sunglasses at night for obvious reasons)
- I never wear a hat
- My driving is mostly in suburban/rural areas, including occasional rural drives after dark where FSD has a warning or isn't available because "one or more cameras" are obstructed, when really the cameras are fine but it's so dark to the sides of the car that they can't adequately perceive things
I don't mean to imply there isn't a detection problem for some cars/drivers/situations since I can only share the experiences I've had with me in my car in the situations I see, but I am a data point that is inconsistent with the "tall drivers get false nags" hypothesis.
I have the impression Chuck Cook's problems could be correlated to wearing a hat, and especially if using the hat brim as a visor when the sun is low in the sky. It would be ideal if that didn't cause a detection problem, but it's an explanation for one possible situation that could induce it.