Linked by Thom Holwerda on Tue 10th Feb 2009 17:13 UTC
X11, Window Managers Ever since its inception, there have been problems with Compiz; people unsatisfied with the direction of the project forked it, then they merged again. Recently, the project, now known as Compiz Fusion, faced other problems, such as multiple branches and a lack of direction. A major reorganisation of the project is supposed to fix all this.
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RE: KWin
by Maners on Tue 10th Feb 2009 19:43 UTC in reply to "KWin"
Maners
Member since:
2005-07-26

KWin in KDE4.2 is far superior to Compiz in most ways IMNSHO.


Except that it's dog slow compared to Compiz (at least on my PC: Athlon 64 3500+, GF 6800GT, Fedora 10). It's actually true for the whole KDE 4.2 - starts up almost twice as long as GNOME (from GDM screen to actual desktop) and window animations are jerky. None of this happens with GNOME + Compiz.

Reply Parent Score: 3

RE[2]: KWin
by leos on Tue 10th Feb 2009 19:50 in reply to "RE: KWin"
leos Member since:
2005-09-21

Except that it's dog slow compared to Compiz (at least on my PC: Athlon 64 3500+, GF 6800GT, Fedora 10).


Which Nvidia driver? I had the same problem with all drivers < 180.22. Nvidia has stated themselves that their previous drivers had issues with KDE4.
It's smooth for me (some 7600 geforce or so) but I don't know what compiz is like.

Reply Parent Score: 2

RE[3]: KWin
by Maners on Tue 10th Feb 2009 21:04 in reply to "RE[2]: KWin"
Maners Member since:
2005-07-26

I'm using the most recent driver from RPM Fusion which, as of now, is:
kmod-nvidia-180.25-1.fc10.x86_64

I hope this is the driver bug, because the video playback (in GNOME) is much slower now after recent updates. I'm not sure whether the latest xorg update caused this or if it's the nVidia driver (I don't have time to investigate this now). Regardless, the whole KDE 4.2 seems slow even with Desktop Effects disabled in KWin, which should rather eliminate nVidia bug from the suspected causes.

Reply Parent Score: 1

RE[2]: KWin
by AbuHassan on Tue 10th Feb 2009 20:28 in reply to "RE: KWin"
AbuHassan Member since:
2008-08-26

It works beautifully using the 180.22 nVidia drivers on F10 64bit.

If you have a Geforce, try updating the driver.

Edited 2009-02-10 20:29 UTC

Reply Parent Score: 1

RE[3]: KWin
by pixel8r on Thu 12th Feb 2009 03:04 in reply to "RE[2]: KWin"
pixel8r Member since:
2007-08-11

It works beautifully using the 180.22 nVidia drivers on F10 64bit.

If you have a Geforce, try updating the driver.


Wish I could say the same - I have a GeForce 6600GT and the 180.22 driver didn't fix anything for me.

I'm definitely still a fan of KDE 4.2 and Kwin but my desktop effects have been jerky right from the start(mainly the fade-in/out of windows, incl the fade-in to the desktop on startup).

I've been using 180.22 since it was in the nvidia repo and it didn't change anything for me. I'm led to believe there is no point making changes in the xorg.conf since most of the successful options are now on by default in the new driver.

The ONE thing that gave me success is turning OFF direct rendering within the kde control panel - desktop options. Made things much smoother...

This makes no sense whatsoever. Apparently direct rendering should lower cpu usage but I found it made almost no difference. The only problem was kaffeine didn't perform quite so well when watching tv (dvb). but this was only slightly noticeable.

I'm still happy using kde 4 though - dont get me wrong. I just put up with the sub-par graphics performance. Linux seems to be going backwards in this area for me. Hopefully they can fix it soon, either through xorg or kde or both.

Reply Parent Score: 2

RE[2]: KWin
by FishB8 on Wed 11th Feb 2009 00:55 in reply to "RE: KWin"
FishB8 Member since:
2006-01-16

Even with Nvidia issues worked out, KDE4 is still slow. Plasma and Kwin are good designs with a lot of planning, but they still need a lot of work to knock out bugs and work out the bottle necks.

Kwin and compiz do share code. They're called X extensions like composite, dri2, etc. Beyond that, they are two very different projects with little in common.

What they CAN do is collaborate better with Freedesktop (and Gnome) on standardizing how desktop elements are handled. Specifically, wallpaper (wallpaper in plasma sits above what all non-KDE apps consider wallpaper), "Desktop Activities" and "Widget Layers"

Reply Parent Score: 1