Doubts about xdg-su and xdg-screensaver (Was Re: First xdg-utilsbeta release)
waldo.bastian at intel.com
Fri Jul 7 10:01:20 EEST 2006
>Hi Waldo and list,
>On Sat, 2006-06-24 at 00:41 -0700, Bastian, Waldo wrote:
>> The curious that don't want to bother with unpacking tarballs can
>> the documentation here:
>xdg-su really needs to go.
Thanks for your feedback I will look closer into the links that you
provided wrt PolicyKit, unfortunately I missed your GUADEC presentation.
>> suspend WindowID
>> Suspends the screensaver and monitor power management.
>> WindowID must be the X Window ID of an existing window of the
>> calling application. The window must remain in existance for
>> the duration of the suspension.
>> The screensaver can be suspended in relation to multiple
>> windows at the same time. In that case screensaver operation
>> is only restored once the suspensions have been restored in
>> relation to each of the windows
>> resume WindowID
>> Resume the screensaver and monitor power management after
>> being suspended. WindowID must be the same X Window ID that
>> was passed to a previous call of xdg-screensaver suspend
>Two issues with this
> 1. AFAIK, this can never be implemented in gnome-screensaver because
> it's fundamentally broken: What happens if the process goes away
> the window sticks? What if a process don't have a window?
The X server cleans up windows if the process dies. If a process doesn't
have a window it can't use this interface. It's of course an interesting
philosophical question why an application would want to disable the
screensaver if it doesn't do anything with the screen :-)
> 2. We're trying to solve this already by standardizing on D-BUS
> interfaces. See
> for details.
Yes, I'm aware of that and welcome that, but at the same time I believe
that this functionality should be made available _now_ without requiring
dbus and without requiring a distro upgrade. I don't see xdg-screensaver
competing with org.freedesktop.ScreenSaver but as complementing each
>I think that Jon McCann, gnome-screensaver maintainer, might explain a
>lot better than me what the issues here are.
Yes, I had the pleasure to talk with Jon last week.
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