Re: Upgrade was mostly fine, but a few problems left
Am Monday, 4. August 2008 schrieb Raúl Sánchez Siles:
> El Sábado, 2 de Agosto de 2008, Christoph Burgmer escribió:
> > Am Saturday, 2. August 2008 schrieb Christoph Burgmer:
> > > - Are the nice app switching effects implemented in 4.1? It doesn't
> > > look like the screenshots I've seen.
> >
> > To answer myself: I found the feature in system settings. All the
> > animations work decently, the only problem ist that scrolling through
> > webpages is massively slower even if all single animations are switched
> > off thus rendering it unusable for me on a ThinkPad with i810.
> >
> > Does anybody have a good reason why scrolling is so slow and if I can
> > somehow work around it? I consider posting a bug at bugs.kde.org
>
> I suppose that you are using the latest intel driver, currently i810
> package just links to the real intel driver (as opposed to old i810
> driver). I've starting to investigate this issue but I don't have a
> conclusion yet. Even more I own a 955GM card so YMMV.
>
> So far you need to take into account several things. First of all is that
> using composite effects may have a major impact on the graphics
> performance, it's not the same to accelerate mixed 3D/2D than just 2D. You
> also need to take into account the hardware performance, that's something
> you can't change unless you buy a newer card, yet more difficult with intel
> (usually integrated).
>
> Take a look at the xorg driver version you are using, 2.4.0 is the latest
> intel driver version, where 2.4.1 may come. Also you may be interested in
> trying with some other more up-to-date stuff, and provided you are using
> experimental, you can try linux 2.6.26 and mesa 7.1 rc3 (packages
> libgl1-mesa-glx and libgl1-mesa-dri).
>
> Do not use packages from experimental if you don't know what you are
> doing.
I was using the version from unstable but tried to switch to the experimental
one, which needed some further upgrades. After that kdm would freeze and no
input was accepted so I reverted back to the lenny version. Btw. I have on-
board graphics on a IBM Thinkpad.
> Also acceleration method is important, looks like mature xaa is still
> better performant on some cases than newer exa, you can specify which one
> to use adding the line:
> Option "AccelMethod" "xaa"
> in the Device section of xorg.conf
I'll try that.
> There is also some important development being carried out in either the
> xorg server and the driver for improving things, but don't expect it for
> Lenny.
>
> Last but not least, I've heard that there are some major Qt4 regressions
> affecting text rendering performance, but this is almost gossip.
>
> If someone from XSF or any other concerned about this field may have
> something more to add/correct.
Many thanks for your precise post. Thanks also to Ferdinand.
I believe that some of the composite things are not only eye candy but
usability improvements so I'll further play around with KDE settings and
meanwhile continue to post bug reports on other glitches.
Chris
Reply to: