Bug#643712: GNOME or GTK tabs are very slow

[James Chew]

I tried the following...

Downloaded the older packages from snapshot.debian.org, and used dpkg to
install (hence downgrading) them:
xserver-common_1.11.0-1_all.deb
xserver-xephyr_1.11.0-1_amd64.deb
xserver-xorg-core_1.11.0-1_amd64.deb

Rebooted and the performance issues went away. There were some caveats
though:
1. The arrows (for the scrollers) and radial selection buttons were not
displaying properly.
2. X server had random crashes.

I then changed my Theme to see if I could get back the arrows and radial
buttons. Inside System>Preferences>Appearance>Theme: Clearlooks and
Darklooks (and a few others) would not render the arrows and radial
selection buttons; Nuvola and SphereCrystal would render correctly.

After a while, the random X crashes were too much for me to take, so I
upgraded the packages back to the Debian Testing versions (i.e. 1.11.1-1).
That's when I noticed that the Themes which did not render properly when I
downgraded the packages were the same Themes that would have the tab
slowness issues.

In short, when using Clearlooks / Darklooks Themes, the slow tabs problem
exists; when using Nuvola / SphereCrystal Themes, the slow tabs problem does
_not_ exist.

I hope this helps in getting closer to the cause of the problem.

- James

On Fri, Sep 30, 2011 at 3:18 AM, Josselin Mouette <joss at debian.org> wrote:
>
> Since you’re both running nVidia drivers and have upgraded your X
> server, my guess for nVidia drivers having performance issues with that
> new Xorg version.
>
> Does it sound plausible to related maintainers?
>
> --
>  .''`.      Josselin Mouette
> : :' :
> `. `'
>  `-
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