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From: Anton Farygin <rider@altlinux.com>
Date: Sat, 03 Nov 2007 11:42:11 +0300
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Что-то у меня никак не срабатывает hdparm -E на DVD.

-E проглатывается, но скорость при этом не изменяется.

Есть идеи ?


Привод подключен по IDE.

Вот информация:


# hdparm -I /dev/hdc

/dev/hdc:

ATAPI CD-ROM, with removable media
         Model Number:       Optiarc DVD RW AD-7173A
         Serial Number:
         Firmware Revision:  1-02
Standards:
         Likely used CD-ROM ATAPI-1
Configuration:
         DRQ response: 50us.
         Packet size: 12 bytes
Capabilities:
         LBA, IORDY(cannot be disabled)
         DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
              Cycle time: min=120ns recommended=120ns
         PIO: pio0 pio1 pio2 pio3 pio4
              Cycle time: no flow control=120ns  IORDY flow control=120ns
HW reset results:
         CBLID- above Vih
         Device num = 1


# hdparm -i /dev/hdc

/dev/hdc:

  Model=Optiarc DVD RW AD-7173A, FwRev=1-02, SerialNo=
  Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
  RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
  BuffType=unknown, BuffSize=0kB, MaxMultSect=0
  (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
  IORDY=yes, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
  PIO modes:  pio0 pio1 pio2 pio3 pio4
  DMA modes:  mdma0 mdma1 mdma2
  UDMA modes: udma0 udma1 udma2 udma3 *udma4 udma3 *udma4
  AdvancedPM=no

  * signifies the current active mode

# hdparm /dev/hdc

/dev/hdc:
  IO_support   =  1 (32-bit)
  unmaskirq    =  1 (on)
  using_dma    =  1 (on)
  keepsettings =  0 (off)
  readonly     =  0 (off)
  readahead    = 256 (on)
  HDIO_GETGEO failed: Inappropriate ioctl for device