KDM plans and lightDM

Harald Sitter sitter at kde.org
Tue Jun 14 23:05:20 BST 2011

On Tuesday 14 June 2011 14:55:58 Shaun Reich wrote:
> How does lightDM even handle different authentication types? KDM has a
> plugin system which handles different auth types (fingerprint,
> winbindd, etc.).
> However, the fundamental flaw that I can see..is that at some level or
> another, the UI/Greeter *has* to know what type of authentication type
> it is. That is why KDM has plugins which wrap around PAM(sort of), so
> that the interface can properly accommodate for the changes in auth
> type. Note these plugins apply to the screensaver unlock dialog as
> well.
> I've been toying with the idea in my head, of using the same Plasma
> plugin (actually an applet + dataengine which wraps around a main,
> more generic dataengine) in tandem with the Plasma integration with
> the screensaver, that is currently present. I think it'd be quite
> trivial for me to do this, too -- since I specifically tried to not
> make assumptions.
> The plugins exist (both in the plasma frontend and regular kfrontend)
> so that when it's in fingerprint mode..it won't show a textbox or any
> useless stuff like that, and may additionally show a diagram of some
> bloke wiping their finger across. (that's what the kdm plugin does
> actually).
> Anyone familiar with the structure in lightDM care to enlighten?

I am not sure it does right now.

David Edmunson should know.


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