Hello everyone, Am experiencing the very same phenomenon on a Compaq Evo N440c under Karmic Koala 2.6.31-15-generic (#50-Ubuntu SMP Tue Nov 10 14:54:29 UTC 2009).
It would be great if this "bug" could find resolution. sudo hdparm -v -i /dev/sda1 reveals: /dev/sda1: multcount = 16 (on) IO_support = 1 (32-bit) readonly = 0 (off) readahead = 256 (on) geometry = 4864/255/63, sectors = 75923127, start = 63 Model=WDC, FwRev=09.07D09, SerialNo=WD-WXEY04012112 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=78140160 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5 AdvancedPM=yes: unknown setting WriteCache=enabled Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6 * signifies the current active mode The drive is capable of UDMA/100. however it runs at UDMA/33. -- hd limited to udma33, thinkpad t23 https://bugs.launchpad.net/bugs/303429 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs