I'm using Linux Mint 17.1, and pressing s or w doesn't seem to increase or decrease speed, it's stuck in a small range, and it constantly reverts back to around 15. I really want to subscribe to this game, any help would be appreciated.

Do you have a joystick or gamepad connected? I believe the game sets your joystick's 3rd axis to "Throttle" by default, which will set your acceleration when Flight Assist mode is turned on.

That's not a problem if your joystick's 3rd axis is actually a throttle slider. If it's gamepad thumbstick, rudder twist or pedals, it'll usually auto-center and do exactly what you're describing.

I have 2 laptops and one of them does the same thing. I think the touchpad does the trick..

I would like to know how to solve this prob. I'll try to disable the touch area next time I play with that laptop..

Some laptops have an accelerometer chip to detect when it's dropped that registers as a joystick in Linux. (My old Thinkpad does)

Take a look in VO's controls menu and see if it's got anything showing up under Joysticks.

ARF: that was exactly the problem.

Blacklisting (adding "blacklist <sensor name>" line to /etc/modprobe.d/blacklist.conf) the accelerometer sensor solved the problem.

THANKS :)

No probs. Glad to have another Linux user around to enjoy the game.