Screensaver to be or not to be (was: Re: Security Audit Request for Screenlocker Branch)

[Martin Gräßlin]

On Tuesday 11 October 2011 20:12:39 Torgny Nyblom wrote:
> On Tuesday 11 October 2011 19.52.36 Martin Gräßlin wrote:
> > On Tuesday 11 October 2011 18:02:32 Torgny Nyblom wrote:
> > > On Tuesday 11 October 2011 15.55.15 you wrote:
> > > > Am Tue, 11 Oct 2011 15:33:39 +0200
> > > > 
> > > > schrieb Torgny Nyblom <nyblom at kde.org>:
> > > > > Does this mean that I will be focred to use a screensaver with
> > > > > password unlock? If so why is that not a vaild usecase? It's what I
> > > > > use at home all the time.
> > > > 
> > > > "Why that?"
> > > > 
> > > > xdpms saves you power (and screen, if that would be any necessary) and
> > > > neither the last generation of CRTs nor any consumer quality tft
> > > > "burns
> > > > in" - the only trouble makers would be plasma (sic! ;-) TVs which
> > > > still
> > > > suck so much power that you should really turn them off while they're
> > > > not in use.
> > > > 
> > > > Locking the screen is a valid requirement, but just rendering some
> > > > fancy stuff (while you're not there anyway) is pointless energy (what
> > > > today often means "battery") wasting.
> > > 
> > > By this argument the entire screensaver and all effects should go not
> > > just
> > > the lockless screensaver.
> > 
> > Sorry, but "effects" are not about "bling" but about improving the user
> > experience. Or do you consider present windows being bling?
> 
> I consider most effects being "bling" yes, with that said I like it and
> appreciate it but still most effects add no real productive value.
<offtopic>I have to disagree. By default we ship no effect which is "bling" 
only. They all add productive value. Even something like a fade effect is a 
productive value and not bling as it makes the system a more natural thing to 
use.</offtopic>
> 
> > > In my oppinion the screensaver mode is a separate usecase then the
> > > locked
> > > screen one. Screensaver is bling only, where as the lock is for when you
> > > leave the computer in an untrusted environment and this should be active
> > > from when I leave, not after x min.
> > 
> > Yes screen saver/animation and screen locker are completely different
> > things. That is exactly what this is about. I worked on a new screen
> > locker
> > which separates the animation and the locker. Therefore as I wrote having
> > just an animation is a non-valid use case for the locker.
> 
> But you also said that the screensaver without locking was going away in
> 4.9. This is what I'm against.
As Thomas wrote you will always be able to run any animations you want. What 
will go away is the support for xscreensavers when the screen is locked. But 
we will make it possible to integrate QML based screensavers into the screen 
locker.

Cheers
Martin
> 
> I fully agree that the locker is and should be separated from the animation.
> 
> /Regards
> Torgny
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