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Comment Re:GPU switching (Score 1) 268

The kernel is only responsible for initializing, suspending, resuming and lately modesetting of the hardware and it seems that is possible now.

Plus managing GPU memory allocation. But yes, this is probably something to be added to XRandR, or some other protocol extension. (What would happen to normal, non-X virtual consoles, though? This might require some more stuff in the kernel.)

Comment Re:Solution (Score 1) 690

[Roadcraft] is available to the public, but is not specifically designed for civilian driving.

Hmm... well, despite the book's full title, there's a lot (pretty much everything, in fact) in Roadcraft that is entirely applicable civilian road-driving (especially the "non-physical" skills concerning attitude and observation). Nevertheless, as you pointed out, getting involved with the IAM (has its own book How to be an Advanced Driver, based on the Roadcraft System) and/or RoSPA RoADA (don't they tend to use Roadcraft directly?) is an excellent starting point for driving improvement.

Comment Re:Solution (Score 1) 690

If they were in a position to control the vehicle they could accelerate or decelerate to manoeuvre safely onto the roundabout either ahead or behind existing traffic. Of course that would also mean they have to look slightly earlier than at the last possible moment, but you can't have everything

Oh, God, heaven forbid your average driver ever make a plan...

Also have you ever been in a car with someone who does the official 'shuffle' steering all the bloody time, even when they're making a reasonably sharp turn? The combination of responsive power steering, repeated jerky movements and the fact that they are barely turning fast enough for the manoeuvre they are attempting is not confidence inspiring.

Pull-Push should be done in a smooth and progressive manner as part of controlled, planned driving. Shuffling the wheel as you described is "doin it rong". Nor is it the appropriate technique for all situations: Rotational Steering ("hand-over-hand", and there's a "proper" way to do this too) is often more convenient for slow-speed manoeuvring, or certain limited number of situations (see Roadcraft) where a lot of steering is needed very quickly (not that one should ordinarily be blasting through hazards so fast that very quick steering is needed...).

Comment Re:Solution (Score 1) 690

How do you left-foot brake if pressing the brake cuts the power?

I don't think it operates along the lines of "brakes applied" => "cut power regardless", there's a sequence of events required to activate the function (e.g., maybe it only cuts if the brakes are applied at or after an increase in engine power).

Comment Re:Sniffing? (Score 1) 307

Yes, SSH is cryptographically secure enough to stop any such attack, and with a verified host-key the machine at the other end of the dodgy lookup can act as little more than an "unauthorised" router. But I wasn't making a statement about SSH's authentication strengths; I think in this case SSH raised the alarm before that, and so coincidentally alerted me that all was not well with the nameserver cache, something I'd so far taken for granted. Had reverse lookups been poisoned as well (how? An attacker would need to intercept my forward queries as well), well, what's an attacker going to do with all that encrypted data?

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