Comment # 28 on bug 1112824 from Robert Munteanu

(In reply to Dead Mozay from comment #27)
> in general, as far as I can tell, the problem is not in the gnome, but
> somewhere in the depths of the system packages. after compiling the kernel
> from the source code, the problem with hyper-threading disappeared, the
> gnome with the enabled hyper-threading showed slideshows instead of
> animations

Interesting. Is this the same kernel version as in Tumbleweed? Did you use the
same config? This might help tracking down the root cause.