Re: Upgrade from 7.2 to newest X in Lenny kills fps
On Tue, 2008-05-27 at 05:46 -0400, Daniel Dickinson wrote:
> On Tue, 27 May 2008 10:56:14 +0200
> Michel Dänzer <daenzer@debian.org> wrote:
>
> > On Mon, 2008-05-26 at 16:34 -0400, Daniel Dickinson wrote:
> > > I have recently upgraded my xorg and related packages from 7.2 to
> > > 7.3 and my glxgears fps has gone from ~1200 fps to ~60 fps. I have
> > > regenerated my xorg.conf using dpkg-reconfigure xserver-xorg, and
> > > have tried adding back the composite (which is what made the
> > > difference under 7.2). Composite works (xrender based at any rate;
> > > xcompmgr and xfce built-in) but my reported frame rate is still 60
> > > fps (using not-a-benchmark glxgears).
> >
> > Is
> >
> > vblank_mode=0 glxgears
> >
> > fast? Are real applications affected?
>
> vblank_mode=0 is fast. I haven't noticed anything in terms of real
> apps, but I haven't used any 3d apps for couple of weeks (except
> screensavers and while they've been slow the system has also been
> busy), and I just did the upgrade in the past few days.
>
> Since vblank_mode=0 is fast, is there likely to be a problem when I try
> something 3d, like games, and is it sufficient to make that part of
> the .xsessionrc, or will I need to alter my /etc/drirc?
That's up to you, but that it's synchronizing to vertical blank is
probably due to your /etc/drirc or ~/.drirc in the first place.
--
Earthling Michel Dänzer | http://tungstengraphics.com
Libre software enthusiast | Debian, X and DRI developer
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