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Old 06-25-08, 04:10 AM   #13
pawels133
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Default Re: KDE4 almost unuseable

Quote:
Originally Posted by Gregor A. View Post
I think the binary nvidia crap is the problem.

Thank You NVIDIA, we have a new KDE4 and with your help, it is unusable....

Many people (Some Vista users) will test the new KDE4.
And the first impression will be: wow this is unbearable slow...
I heard that under vista KDE4 runs very smooth with nvidia drivers . So it would be something like that:
Wow, KDE4 is faster under Windows, so I wouldn't change to Linux...
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Old 06-25-08, 04:31 AM   #14
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Default Re: KDE4 almost unuseable

If I remember correctly, somewhere in the systemsettings of kde4(.1) there is the possibility to select either OpenGL or XRender as backend:
Did anyone notice performance differences when playing with that?
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Old 06-25-08, 06:41 AM   #15
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Default Re: KDE4 almost unuseable

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Originally Posted by vampire_donkey View Post
...for me along with the InitialPixmapPlacement=2 GlyphCache=1 stuff.
Not all nvidia drivers support this option....
I have also problems with kde4.1 (daily snapshots) and i use nvidia-legacy with a Geforce Ti4600.
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Old 06-25-08, 09:47 AM   #16
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Default Re: KDE4 almost unuseable

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Originally Posted by capthookb View Post
Not all nvidia drivers support this option....
I have also problems with kde4.1 (daily snapshots) and i use nvidia-legacy with a Geforce Ti4600.
They all support InitialPixmapPlacement, just >8xxx series support GlyphCache which you shouldn't need on a <8xxx series card anyway.
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Old 06-25-08, 10:45 AM   #17
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Default Re: KDE4 almost unuseable

This is unacceptable. NVIDIA, please fix it.
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Old 06-25-08, 11:47 AM   #18
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Default Re: KDE4 almost unuseable

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Originally Posted by Big P View Post
They all support InitialPixmapPlacement, just >8xxx series support GlyphCache which you shouldn't need on a <8xxx series card anyway.
He is using legacy, which means that it doesn't get ipp as legacy gets no new features
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Old 06-27-08, 12:25 PM   #19
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Default Re: KDE4 almost unuseable

Try this simple application called XRender Benchmark and you will see how slow nVidia closed source drivers are compared to other drivers. Even the poor integrated ATI graphics in my old laptop and with open source drivers beat the slow nVidia drivers.
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Old 06-27-08, 02:14 PM   #20
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Default Re: KDE4 almost unuseable

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Originally Posted by JRepin View Post
Try this simple Benchmark[/url] and you will see how slow nVidia closed source drivers are compared to other drivers.
After all, the nvidia drivers do quite well in those areas, at least in the important areas, according to the benchmarks.
To be honest who uses the same picture as mask/dest or source, or does the fancy disjoint/cojoint stuf reall use?

What seems to make troubles are the unpredictable patterns how native resources (like pixmaps) in vram are used, and whats done with them. It seems somehow the driver is driven far too often into its slow-paths.

lg Clemens
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Old 07-10-08, 07:04 AM   #21
meskalamdug
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Default Re: KDE4 almost unuseable

Kde 4.1 UNUSABLE
with nvidia
Is more,more slow than 4.0
and i use it WHITOUT desktop effects
games launched from kde4 are slooooow
This situation is very,very bad
i think this card is my latest nvidia card.
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Old 07-10-08, 09:19 AM   #22
Sarev
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Default Re: KDE4 almost unuseable

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Originally Posted by ledoc View Post
If I remember correctly, somewhere in the systemsettings of kde4(.1) there is the possibility to select either OpenGL or XRender as backend:
Did anyone notice performance differences when playing with that?

the option is in system setting -> desktop -> desktop effects -> advanced options.
For me it doesn't make any difference, both OpenGl and XRender lag when it comes to resizing windows or reducing/restoring them. Geforce 8600 GT with lastest 177 beta driver here.
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Old 07-10-08, 10:11 AM   #23
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Default Re: KDE4 almost unuseable

For me works ok with KDE from opensuse 11.0 factory repo, apart from resizing (yes, it is slow). Resizing can be improved with IPP=2, however this way you get delays when opening fullscreen windows (it might take seconds on 1600x1200 before content of window appears).
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Old 07-10-08, 02:48 PM   #24
Alejandro Nova
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Default Re: KDE4 almost unuseable

AFAIK NVIDIA engineers have discovered the source of failure, and are working on a fix. But, I have some serious questions.

I've enabled "UseEvents", "BackingStore", "RenderAccel" on my GeForce FX, KDE 4.0.85, Fedora 9 box. The speed I'm getting is decent, but NVIDIA driver is crashing a lot. And I would like to ask you:

1. Is there a way to get an useful debug trace of my crashes with Composite + UseEvents + BackingStore, and send it to you? I know about the usual procedure for reporting bugs, but I know that a proper debug trace of those crashes is what you need, in the first place.

2. I have a GeForce FX card, that won't be supported in the upcoming 177 release of GeForce drivers. Will those fixes you are working on reach every card owner? Will those fixes only reach 177? I'm asking because we are not talking about pixel shaders, PureVideo or SLI, we are talking about basic 2D accel and Composite crashes. Please, NVIDIA engineers, have mercy!
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