John,
Yup, that's the one I had too. The ATI driver just doesn't seem to
play well with OpenGL. It worked sorta okay with the regular programs,
but I noticed drop-outs in the screen, weirdness when it tried to
display text while scrolling down the page in the web browser, and a
bunch of other little nits that tended to drive me nuts on the machines
I was using. And the ATI driver really borked the display on this 10.04
machine I use here at work. Switching over to an nVidia card was like
night and day. I now have none of the problems on this machine that I
had before. I should have originally said that the ATI issues didn't
really start up till I upgraded my work machine to version 9, and it
continued with the current version 10. The ATI seemed to work ok with
version 7 and version 8, but from then on it was nothing but problems.
I'm assuming either ATI or the other developers will eventually have a
decent driver that will work with version 10, but I didn't want to wait
till they came up with that, and it was pretty painless switch to the
nVidia card.
Mark
On 07/06/2010 09:27 AM, John Dunn wrote:
> Hi Mark, the graphics card i'm using is the ATI Rage it's an old one
> from early year 2000 and i've used it successfully with ubuntu from
> 7.04 up to 8.04, but it doesn't seem to like EMC2 so I may have to think
> about replacing it. I think the main difference is EMC2 is working in
> real time. If it was too easy it wouldn't be so much fun.;-) Cheers John
> Dunn
>
> On 6 July 2010 11:38, Mark Wendt <[email protected]
> <mailto:[email protected]>> wrote:
>
> On 07/05/2010 09:25 PM, Jon Elson wrote:
> > John Dunn wrote:
> >> hi john,I did notice when I ran glxgears that the cursor was
> solid black
> >> which accounts for the black cursor in my description, and the
> frame rate on
> >> the left hand side dropped from over 4000 to about 600 when I
> enlarged the
> >> gear picture to full screen which sounds as if it ran out of
> steam. cheers
> >>
> > The speed drop is no surprise, only high-end 3-D cards like
> nVidia can
> > do full-screen 3-D
> > with no speed penalty.
> >
> > If the cursor or other things are messed up when an openGL app is
> > running, you may not be
> > running the proper video driver. There might be a special driver for
> > the ATI card. In some
> > cases it is best to turn off all the special driver acceleration
> > features and use direct software
> > rendering for EMC/Axis. The 3-D preview screen doesn't really
> use a lot
> > of resources, so
> > the penalty of software rendering is not great, and this sometimes
> > clears up odd problems
> > like you may be having.
> >
> > Jon
>
> I gave up on using ATI video cards in my Ubuntu machines. ATI does have
> a proprietary driver you can get, but I experienced a ton of problems on
> 8.04 and 10.04 with it, and the generic ATI drivers weren't much better.
> I ended up, like Jon mentioned below, with an nVidia card and my
> problems went away.
>
> Mark
>
>
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