Bonjour !

I think I've finded a begining of soluce about my problem...

I've found an interressent article ( http://www.linuxgazette.com/issue76/tag/10.html )

My /dev/hda seems to have problem with dma:

the difference between Knoppix 3.1 & Knoppix 3.2 is that the first has not enabled dma on my drive no problem is so reported

I'll turn off my dma in order to wait testing if a cable is not responsible of this trouble

Check if dma is enable on /dev/hda:
Code:
hdparm -d /dev/hda
Disable dma:
Code:
hdparm -d0 /dev/hda
Enable dma:
Code:
hdparm -d1 /dev/hda