Hi Christopher, the problems occurs since ubuntu 11.10. I can't tell if the problem was the same before this release, because I have not got already my SSD before. So I have not observed a regression. Just a little progression : 330Mo/s instead of 300Mo/s since ubuntu 12.04.
dmesg screen me this : [ 0.640125] ahci 0000:00:1f.2: >AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x7 impl SATA mode [ 0.656645] ata1: SATA max UDMA/133 abar m2048@0xfa305000 port 0xfa305100 irq 47 [ 0.656647] ata2: SATA max UDMA/133 abar m2048@0xfa305000 port 0xfa305180 irq 47 [ 0.656649] ata3: SATA max UDMA/133 abar m2048@0xfa305000 port 0xfa305200 irq 47 [ 0.975936] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [ 0.975961] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [ 0.975985] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) I can see that SATA III is recognized for two of my drivers (one SSD and one standard disk). The other drive is an optical disk. But I am not really sure about the signification of UDMA/133. This protocol is old. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/889071 Title: SATA III recognized as SATA II (chipset intel z68) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/889071/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs