[PD] Gem loses acceleration on dimen set?

[IOhannes m zmoelnig]

hi all !

fine that there are bug-reports, but i am far from knowing why there are
these (!) bugs.
Gem is being used for (say) 5 years, and i used to think, that (at
least) the window-routines (like "dimen") should be somehow stable.
well, obviously they are not

pix wrote:
> 
> for me, dimen doesn't do anything.
you need to send a dimen-message (like "dimen 1024 768") to the gemwin,
before (!) you create the gem-window (with "create"). the dimen-message
will not resize the window.

> i really expected it to crash, because normally if i breathe, blink, or
> lapse from a state of trancendental meditation, gem crashes pd.
so i understand, why you don't try to destroy the gemwin, re-dimension
it, and create it...


> but this has a lot to do with this message, i guess:
> 
> error: GEM: Unable to create single buffer window
> error: GEM: Error creating const context
> error: GEM: A serious error occured creating const Context
> error: GEM: Do not continue!
> 
> and it's right, single buffer mode doesnt work. but normal double buffer
> mode works within the rigid operating parameters outlined above (actually,
> it normally just crashes when i try to destroy the window, or close the
> patch).
> 
> debian unstable, x4.1, ati mobility m3.

it seems to be a driver-problem (oh, gosh; i DO love these answers: it
is a driver-problem -- no wait, it might have to do with your
computer...)
unfortunately i do not have access to your grafix-card (not even having
a laptop).
by the way, "debian unstable" really does mean "unstable" (i didn't
believe this either till yesterday, when i tried to install the new
nvidia-drivers which killed my X-server in combination with Gem)

> 
> On 10 Dec 2001 21:59:21 -0800
> Andrew Water Schmeder <andy at eh2o.ws> wrote:
> 
> > Hi all.
> >
> > I am experiencing the following problem with Gem.
> >
> > When I use the dimen message to set window size, I lose hardware
> > acceleration (I'm assuming thats why everything become super-slow.).
> >
> > This happens even if I set the window size to the default (500x500).
> > Acceleration only works in a fresh PD session when the dimen message has
> > not been used yet.
> >
> > This is a debian/unstable linux system w/ a GeForce2 card.
>
hmmh, i think i believe it might have something to do, with the
1.0.2313/14-drivers for the geForce. 

> >
> > Any ideas?
> >
> >
> > thanks
> > andy
> >