I tried it, but it's not a permission problem (anyway I try all the commands 
as root user), and directfb works correctly with other cards (matrox 
millennium), or with this video card using the sdl layer...
But I don't understand one think: Why does /proc/fb recognize my video card a 
a Voodoo5, while it's only a Voodoo4? I know they have the same gpu, but the 
ram is different... Can it be the cause of the error?

Alle 11:12, martedì 17 gennaio 2006, hai scritto:
> PxPert wrote:
> > I've just installed directfb and set the framebuffer to use the tdfx
> > module (built in with kernel and with acceleration enabled), but when I
> > try to test it I've got this error message:
> >
> > Principale DirectFB-2006-01-15-05-25-09-UTC # /usr/local/bin/dfbinfo
> >
> >        ---------------------- DirectFB v0.9.25 ---------------------
> >              (c) 2000-2002  convergence integrated media GmbH
> >              (c) 2002-2004  convergence GmbH
> >         -----------------------------------------------------------
> >
> > (*) DirectFB/Core: Single Application Core. (2006-01-15 23:38)
> > (*) Direct/Memcpy: Using MMXEXT optimized memcpy()
> > (*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 12859)...
> > (*) Direct/Thread: Running 'PS/2 Input' (INPUT, 12860)...
> >  (!!!)  *** UNIMPLEMENTED [fusion_reactor_set_lock] *** [reactor.c:853]
> > (*) DirectFB/Input: IMPS/2 Mouse 1.0 (Convergence GmbH)
> > (*) Direct/Thread: Running 'Keyboard Input' (INPUT, 12861)...
> > (*) DirectFB/Input: Keyboard 0.9 (convergence integrated media GmbH)
> > (*) DirectFB/Genefx: MMX detected and enabled
> > (!) DirectFB/FBDev: Could not mmap MMIO region (offset 0, length
> > 134217728)! --> Invalid argument
> > (!) DirectFB/Core: Could not initialize 'gfxcard' core!
> >     --> General I/O error!
> > (#) DirectFBError [DirectFBCreate() failed]: General I/O error!
> >
> > I've got this error with all other apps that use directfb (mplayer,
> > links2). I've tryed DirectFB V0.9.22/0.9.24/cvs, all with the same
> > problem... How can I solve this problem? Thanks in advance
>
> Try to chmod 777 /dev/fb0.

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