David Santamauro wrote:
Clemens Ladisch clemens@ladisch.de wrote:
Does the 32-bit Linux use the same driver version?
To be honest, I'm not sure exactly how to check. They are the latest versions of fedora 11 (32-bit) and fedora 12 (64-bit).
Linux beethoven 2.6.29.6-1.rt23.4.fc11.ccrma.i586.rt Linux debussy 2.6.31.12-1.rt21.1.fc12.ccrma.x86_64.rt
That's different.
If yes, then it's possible that the 32-bit and 64-bit kernels configure the PC differently; for example, there might be noise on the power line due to a different kind of power management.
another interesting angle... I thought it might be power or some kind of internal noise. How could I pursue that further?
Try running something on all CPU cores so that it doesn't switch into power saving mode.
Regards, Clemens