I think this is usefull information:
[EMAIL PROTECTED] /boot $ sudo /usr/lib/hal/hal-system-power-pmu sleep
power-pmu : PMU_IOC_SLEEP failed
stracing this gives:
open("/dev/pmu", O_RDWR|O_LARGEFILE) = 3
ioctl(3, PMU_IOC_SLEEP, 0) = -1 ENOSYS (Function not implemented)
close(3) = 0
write(2, "power-pmu : PMU_IOC_SLEEP failed"..., 33power-pmu : PMU_IOC_SLEEP
failed
--
no suspend available on powerpc (iBook G4, PMU)
https://bugs.launchpad.net/bugs/189851
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