request for some help with performance and sound
pem at alumni.nd.edu
Wed Feb 6 00:45:08 GMT 2008
Thanks for your help. I intend to tackle the video problem tomorrow
morning. It seems that the driver might be the issue.
On Feb 5, 2008 4:23 PM, Richard Doyle <rdoyle at islandnetworks.com> wrote:
> On Tue, 2008-02-05 at 15:42 -0500, Patrick McKnight wrote:
> > Ah, good catch. I am not sure about the driver (I cannot check it
> > right now because I am not in my lab). If I specify the via driver in
> > the lts.conf file, I suspect it is using the stock xorg driver. Is
> > that true?
> > If so, I think this might be the problem. By the way, my server video
> > performance is horrible as well. Perhaps that is the common thread.
> Sounds likely.
> > Is there a way to stick with the Gutsy install but use the via driver
> > from previous versions? I know xorg is quite finicky about driver
> > compatibility but perhaps the versions are not so different in driver
> > specs.
> As far as I know, your xorg drivers need to match your kernel, and each
> version uses a new kernel, so...
> With Feisty, we're using a driver compiled from source and the via
> binary, as described at:
> Unfortunately, there isn't anything comparable for Gutsy, and the
> openchrome, xorg, and unichrome open source drivers gave unacceptable
> performance, or at least I ran out of time to find a way to make any of
> them work.
> > Thanks for the questions. They are leading me at least in a direction
> > to figure out the source of my problem.
> > On Feb 5, 2008 3:11 PM, Richard Doyle <rdoyle at islandnetworks.com>
> > wrote:
> > On Tue, 2008-02-05 at 14:50 -0500, Patrick McKnight wrote:
> > > Richard,
> > >
> > > Thanks for the quick reply and sorry about excluding
> > relevant
> > > information.
> > Were you using the default Via driver (the xorg version) in
> > both
> > instances?
> > >
> > > I am using 7.10 (Gutsy) now. The install is the AMD64
> > version on my
> > > server and I boot off a i386 image for my clients.
> > Log into the system console on the client, as root, and
> > inspect the Xorg
> > log (in our system it is named Xorg.6.log) for clues. See
> > >
> > > With respect to the drivers and kernel, yes, I suppose the
> > via driver
> > > changed from the Dapper ltsp install to the Gutsy Edubuntu
> > ltsp
> > > install. I would not expect the driver to account for the
> > extreme
> > > difference but perhaps that is the case.
> > I agree, but only if you were using the xorg driver in both
> > cases. The
> > xorg driver works, but performanace is poor. In my experience,
> > the only
> > driver to provide decent performance is the proprietary
> > version from
> > Via, and that only with the pre-gutsy version. We've reverted
> > to Feisty
> > for this reason.
> > --
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> > --
> > Cheers,
> > Patrick
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Patrick E. McKnight, Ph.D.
Department of Psychology
George Mason University
MSN 3F5, 4400 University Drive
Fairfax, VA 22030-4444
pmcknigh at gmu.edu
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