Thanks for pointing this out, Mono!
I seem to have missed the information that this issue is related to the power management of the M92. I must say I envy you a bit, since in my case, even writing with the small stylus does not improve the devices behaviour. I agree it would be very helpful to turn the energy saving feature off during scribbling. The M92 has such an impressive battery lifetime, it would probably not do much harm to "waste" some of it on hassle-free scribbling...