Am 2015-06-17 14:39, schrieb David Kahles:
On 06/17/2015 05:30 AM, Martin Gräßlin wrote:
Am 2015-06-16 16:58, schrieb David Kahles:
Hello,
I want to hear some opinions about the multiscreen behavior of the
lockscreen.
Currently the lockscreen is displayed on all connected monitors. I
would prefer if the
lockscreen is displayed only on the primary monitor, as it's done at
the loginscreen,
because there is no need for multiple instances.
I think this also matches the behavior of other operating
systems/desktop environments.
What do you think?
When we redid the lockscreen to be in QML with the lock always shown
we did it that way on purpose. The main problem is that we don't know
which screen the user is expecting it to be on. Even more we don't
know whether the primary screen is actually the user's primary screen.
We cannot expect users to configure it as they use it.
Easy example: notebook, external screen connected, internal screen is
obviously the primary screen as it's a notebook. Now user closes the
lid, screen stays configured to be on and locks the screen: at that
point user has a broken system because lock screen is not shown any
more. User might even try to hard turn off the system at that point,
because user doesn't even think of the idea the closed notebook screen
could have the locker.
So overall: if we want to be sure that users always can lock in again,
we need to show on all screens.
That makes sense, it could save much trouble.
Out of curiosity: why should the monitor in the closed lid be
configured to stay on? The only reason that
comes to my mind is, when the lid-closed sensor is broken.
in an ideal world: not needed. In the world we live in (X11) it might be
needed. Consider the case that I plug in an external TV to my notebook
to watch a movie and close the lid. If it would disable the output, I
would get about 1-2 min of freezes, becuase XRandR/Intel is freezing. In
addition Plasma would start to shuffle everything around, KWin would
shuffle everything around for things I don't need. I'm happy with all my
open windows to stay on the notebook screen even if they are not visible
to me as in that usecase the only thing that matters is the vlc on the
big screen.
Cheers
Martin
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