[kde] [Bug 320756] Drag and drop is terribly slow (essentially unusable) over ssh.

[michael.zugaro at college-de-france.fr]

https://bugs.kde.org/show_bug.cgi?id=320756

--- Comment #4 from michael.zugaro at college-de-france.fr ---
> Could be because Dolphin draws small pixmaps for the dragged files next to
> the cursor. Maybe sending these through X and updating them repeatedly is
> the slow thing, I don't know.

I am not sure this is the case. We have quite a number of workstations and
servers here, and I have just tested a few configurations:

* Dolphin 0.9.2 on KDE 3.5.10 - FAST
* Dolphin 1.5 on KDE 4.5.3 - FAST
* Dolphin 1.7 on KDE 4.7.4 - FAST
* Dolphin 2.0 on KDE 4.8.2 - FAST

* Dolphin 2.2 on KDE 4.10.0 - SLOW
* Dolphin 2.2 on KDE 4.10.3 - SLOW

I was under the impression that this was a rather recent problem. The above
confirms this.

> And moreover, if this really affects many applications, I cannot believe
> that it's Dolphin's fault.

I agree (remember I submitted the bug under the 'general' category).

> Maybe something in Qt doesn't work right in this
> use case, or maybe the slowness when dragging and drawing pixmaps is just
> unfixable.

I have just installed and played around with qtcreator. Drag&drop seems to work
fine (even when there is an associated pixmap).

Wouldn't this suggest a problem with KDE4.10?

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