[tlinux-users:07365] no dma on teac DV-W28EAT
Mario Fetka <[email protected]>
| Newsgroups | gmane.linux.hardware.toshiba |
|---|---|
| Message-ID | <1130328946.18233.14.camel@localhost> |
Hallo List,
I have a small problem with on my new M60-135 notebook
I am not able to activate the dma mode on this teac DVD
the output of hdparm -d1 /dev/hdc
/dev/hdc:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
The crazy thing is that hdparm -i /dev/hdc
/dev/hdc:
Model=DV-W28EAT, FwRev=1.9B, 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=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
Drive conforms to: device does not report version:
* signifies the current active mode
allready says its activated
but xine-check
says it isnt
[ hint ] DMA is disabled for your DVD interface.
This will probably result in a serious performance hit when
playing DVDs. You can issue the command
hdparm -d1 /dev/hdc
as root to enable DMA. It would be wise to add this command to
some script that is executed executed at boot time.
Note that you probably have to set the DMA mode for your drive
as well.
Most DVD-ROMs work fine with multiword DMA mode 2. You can use
hdparm -d1 -X34 /dev/hdc
(as root again) to set this mode. Maybe UDMA2 will give you
even better
performance, but it only works well with some controllers.
You'll
probably need UDMA capable IDE cables for this mode. If you
want
to try: make backups of your important data and type (as root
again)
sync
hdparm -d1 -X66 /dev/hdc
If your System still works fine after this, you probably want
to keep
these settings (add them to some boot script).
If your system hangs or behaves very strangely after a few
minutes, you
should reboot immediately and never use this setting again on
this
machine. Good luck ;-)
press <enter> to continue...
could someone plz help me (I want to watch my dvds without glitchs)
wfg
thx in av
Mario Fetka