NVidia vs. KT600

[Kenneth Culver]

Quoting Uwe Laverenz <uwe at laverenz.de>:

> Hi,
>
> I have a strange problem with the NVidia drivers on my machines: when I start
> a glx-application (glxgears, quake2...) the performance is normal. If I
> make another attempt a few minutes later, the performance is ridiculous slow.
>
> Example:
>
> glxgears, 1st run: 6400 FPS
> glxgears, 2nd run:   17 FPS
>
> FreeBSD-versions: 5.2.1-p9 and 4.10-STABLE
> Nvidia-cards: GF4-Ti/4200
> Boards: Asus A7V-600 (Athlon XP)
>
> If have tried several combinations of AGP-Support (FreeBSD vs. NVidia),
> nvidia-sysctls, XF86Configs ... without success.
>
> The next strange thing: if I wait several minutes, the performance
> is normal again, but only for 1 attempt, the next one ist slow again. This
> makes playing Quake2 impossible, because connecting a server includes a
> "vid_restart" (-> sloooow).
>
> I guess that something gets "locked" somehow. The next thing I want to
> try is an older 4.x version.
>
> Could this be a problem with the VIA KT600 chipset? Does anybody
> else experience this problem or am I the only lamer playing Quake on
> FreeBSD? ;)
>
> thank you for any help,
> Uwe
>
I don't think so, I started observing this problem as well with my via k8t800
based amd64 system. It wasn't doing this at all until around end of May or
beginning of June. I think a commit around that time messed something up.

Ken