On Thu, 2003-07-10 at 10:58, Ville Syrj�l� wrote: > Sounds like interrupt trouble.
Never doubt Ville. :-)
> Did you upgrade your kernel and forgot the
> irq patch? Or maybe your /dev/fb permissions got messed up...
Neither but your instinct was correct. The system upgrade included a
glibc upgrade which overwrote my /usr/include/linux/fb.h with a "new"
one. The problem with that being that standard glibc does not include
the:
#define FBIO_WAITFORVSYNC _IOW('F', 0x20, int)
so when I subsequently built directfb-0.9.18, all of the cool matrox irq
vsync support was missing.
CPU usage is down to a respectable 35% again.
Is there any chance (i.e. has there been any attempt even?) of getting
this IRQ patch into the mainstream kernel and the corresponding
FBIO_WAITFORVSYNC define into glibc so that this stuff doesn't always
need patching?
b.
--
My other computer is your Microsoft Windows server.
Brian J. Murrell
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