reopen 583604
thanks
To get the 2D performances back (300FPS vs. 17FPS) I had to disable
KMS. In this case, the display corruption still happens with the
newer driver and kernel.
One difference: it doesn't happen when I run iceweasel, but when I run
emacs (cf. attachment).
- Sylvain
On Sat, May 29, 2010 at 01:50:35AM +0200, Sylvain Beucler wrote:
> Hi again,
>
> On Fri, May 28, 2010 at 10:40:00PM +0200, Brice Goglin wrote:
> > Version: 1:6.13.0-2
> >
> > Le 28/05/2010 22:36, Sylvain Beucler a écrit :
> > >
> > >>You should try with 6.13.0 and KMS since that's what will be in Squeeze. So:
> > >>* upgrade your kernel to linux-image-2.6.32-5-686
> > >>* install xserver-xorg-video-radeon 6.13.0
> > >I can't reproduce the screen corruption anymore, so I guess it's ok :)
> >
> > Good to know, closing.
>
> You'll probably also want to know, although that's less good, that 2D
> performances decreased quite a lot. I can only get < 10FPS in 2D
> games now (used to be > 60FPS).
>
> This following simple SDL app runs at 17FPS while, from memory, it ran
> at least at 100FPS previously.
>
> Shall I open another bug?
>
>
> #include <stdio.h>
> #include "SDL.h"
>
> int main(void)
> {
> SDL_Init(SDL_INIT_EVERYTHING);
> SDL_Surface* screen = SDL_SetVideoMode(640,480, 0, SDL_DOUBLEBUF);
>
> Uint32 start = SDL_GetTicks();
> int nb_frames = 200;
> int i = 0;
> for (; i < nb_frames; i++)
> {
> SDL_Rect r = {10,10,40,60};
> SDL_FillRect(screen, &r, SDL_MapRGB(screen->format, 0,0,255));
> SDL_Flip(screen);
> }
> printf("%g\n", 1000.0 * nb_frames / (SDL_GetTicks() - start));
> SDL_Quit();
> }
>
> /**
> * Local Variables:
> * compile-command: "gcc -ggdb $(sdl-config --cflags --libs) test.c -o test"
> * End:
> */
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