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24.6.09 21:00 NVIDIA and KDE4 problems: SOLVED! (

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KDE4 never really worked on my PC. It was slow, everything was slow, not only effects :-(

I have a NVIDIA 8600 GT, and I was used to compiz, which performed very nice with this grafic card.

I knew there were few possible source of problems:

KDE4
Qt
Nvidia driver

At the beginning of KDE4 (KDE4.0), many performance problems were mentioned with Nvidia drivers, so I didn't invest too much time, just updated KDE 4 with every new version, but it didn't get better. I also tried several Qt tweaks, but still no luck. Same for Nvidia: I downloaded and tested every new version, KDE3 was running very well, even if compiz, but KDE4 was still very very slow.

Few days ago, I found this following entry in openSUSE formens. It suggest to "activate" RenderAccel in sax2 configuration. I don't know if you have ever been in the sax2 driver configuration dialog, but here is what it looks like:

I've also been here a couple of times, but never realized that you can activate/deativate driver options here. "activate" means selections, deactivate means no selection. No very userfriendly and intuitive, I expected to have a checkbox or a true/false option panel or something like that.

However, now everything is fast and I'm enoying all nice desktop effects :-)

Few critics:

Why is RenderAccel not activated by default? @suse
Fix usability of SaX driver options dialog. @suse
I think kde4 should work well also without some features supported by grafikcards. I think RenderAccel is mostly for transparency effects.

Labels: KDE, Linux