[kde-linux] KDE3 Apps to KDE4?

Allistar allistar.m at gmail.com
Wed Nov 11 23:10:52 UTC 2009

Boyd Stephen Smith Jr. wrote:

> On Wednesday 11 November 2009 11:17:10 Duncan wrote:
>> Allistar posted on Wed, 11 Nov 2009 09:59:17 +1300 as excerpted:
>> > And an important one for some of us: proper multi-session support. I
>> > have a triple-head setup and from what I can tell I cannot use this in
>> > KDE4.3.
>> Triple-head should work (if your X supports it), but only as a combined
>> single-session, aka "xinerama mode", spread out over all heads.  From
>> what I read, kde4 is single-session only, with no one currently working
>> on changing that.  Apparently, the multi-session support in kde3 was
>> never deliberately intended either, it just happened to work.  But kde4
>> was enough of a rewrite that whatever allowed it to work in kde3 is long
>> gone, and it's not likely to return until someone with sufficient skills
>> gets sufficiently interested in making it happen... that it does happen.
> Xinerama (or the proprietary equiv.) is usually preferred today anyway. 
> With multiple sessions, you are unable to move a window from one monitor
> to the
> others, and most people expect to be able to do this.  If for no other
> reason, because this is the way OS X and MS Windows handle multiple
> screens that are not in clone mode.

Not being able to move windows across doesn't bother me. The real thing I
like is a true 3D display with independant workspaces between left and

> Xinerama does have its disadvantages.  The first I can think of is
> incorrect DPI reporting when the two monitors differ in DPI.
> I use a two-head Xinerama setup for my desktop machine.  It mostly works,
> although doing anything involving activities has the potential to mess it
> up. The fact that my monitors have different DPIs and aspect ratios also
> results in some quirks that are trivial to work around.

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