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
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