Re: [utah-glx-dev] Multiple GLX contexts & Multiple X servers

[David G. <dg...@ir...>]

On Thu, 27 Apr 2000, Erik wrote:

> On Thu, Apr 27, 2000 at 05:55:20PM -0500, Jay Thomas wrote:
> > Hi,
> > 
> > I noticed a couple things when testing the latest utah-glx on a dual 600 PIII
> > w/ 512 MB RAM & a Matrox G400 MAX dual head.
> > 
> > a) When I open up a second GLX context the X server invariably crashes.
> > 
> > b) When I run w/ two X-servers on the same screen (ctrl-alt-f7/f8) via GDM the
> > G400 card seems to become corrupt easily. i.e: garbage is displayed onto the
> > screen & the screen cannot be reset w/o rebooting.
> > 
> > Any ideas?
> Thats interesting.  I only have a G400, on a K7-550, but i have two screens open
> all the time.  I play unreal on :1, although i never have 3d going on both screens.
> 
> Also i have had multiple glx contexts open ... never was a problem(just tried now,
> it works fine for me) ... 
> 
> interesting :0
> 
> > -Jay
>
> Erik Bernhardson
> jo...@jp...

I often use multiple glx contexts within the same application, and
I find that when I quit the application (i.e. causing multiple glx
contexts to be deallocated at nearly the same time) X crashes about
50% of the time.  Both on the G200 and the G400.  Also, the G400 
hard-locks during general use reasonably often, the G200 hard-locks
only when I use a large (i.e. 1280x1024) context.  

Neither of these cards ever gives me trouble when I'm playing Quake III,
so pretty much all the serious quake-related bugs must have been squashed.
As a general-purpose OpenGL driver, though, the utah-glx mga driver is
definitely no better than alpha-quality.  Many kudos to the developers,
though, having X crash every so often is far better than having no
drivers at all!

 - David

P.S.  Your ":0" emoticon, obviously meant to convey either surprise or
      disbelief that the G400 driver has any major bugs, is quite
      insulting to all of us people who do experience problems with it.

--
  David Gobbi, MSc                    dg...@ir...
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario