[AG-TECH] Display Performance Problems

[Mike Daw]

Hmm. Sounds interesting. I'll give what you suggest a go. I didn't
physically move any cards - I just put the primary display on one of the
G200 outputs. The desktop icons went to the right place but the taskbar went
missing.

I guess there is a bug somewhere between the Matrox drivers and Win2K.

> -----Original Message-----
> From: Matthew Wolf [mailto:mwolf at cc.gatech.edu]
> Sent: 09 October 2001 16:48
> To: Mike Daw
> Cc: AG Technical Developers (E-mail); Yien Kwok (E-mail)
> Subject: Re: [AG-TECH] Display Performance Problems
>
>
> I saw a similar problem when I was juggling around cards in my display
> machine.  I managed to get it back to the right place by disabling all
> of the outputs except for screen 1 (the first output on the AGP G450)
> and rebooting.  The taskbar reappeared on that screen, and
> then I could
> go back and add the other outputs back into the mix.  I don't know if
> this is what you mean by switching displays around; if so, I think
> that's a big cry for help from our Microsoft friends!
>
> Good luck!!!
>
> Matt
>
> Mike Daw wrote:
> >
> > Just for everyone's information:
> >
> > We were having performance problems on our display machine.
> >
> > I tried John Shalf's suggestion of moving from 32-bit
> colour to 16-bit. This
> > had a small effect on performance.
> >
> > I tried Marty Hoag's suggestion of putting my 2 displays
> that handle most of
> > the vic onto the G450 card rather than the G200 and this
> had a very good
> > effect on performance.
> >
> > So thank-you. I guess we should change the G200 for a
> G450PCI as soon as we
> > can.
> >
> > HOWEVER - something rather strange happened while I was
> switching displays
> > around. I was logged in as administrator and I completely
> lost my taskbar!
> > This meant quite a loss in the things I could do, as you
> can imagine.
> > Luckily, other users still had their taskbar and I was able
> to create a new
> > administrator user that had a taskbar. Has anyone else
> experienced such a
> > worrying thing when playing around with displays and if so,
> what did they do
> > about it? (And no, switching displays back again and
> re-booting made no
> > difference.)
> >
> > Mike.
> >
> > -------------------------------------------------
> > Mike Daw
> > Computer Services for Academic Research (CSAR)
> > Manchester Computing, Kilburn Building, University of Manchester,
> > Manchester M13 9PL, UK
> > Tel: +44 (0)161 275 7026 Fax: +44 (0)161 275 6800
> > Email: mike.daw at man.ac.uk
> > http://www.mcc.ac.uk
> > -------------------------------------------------
>
> --
>
>         -- Matthew Wolf
>         -- Research Scientist, IHPC Laboratory
>         -- College of Computing, Georgia Tech
>         -- mwolf at cc.gatech.edu