David C. Rankin wrote:
Bill Anderson wrote:
David C. Rankin wrote:
On my Toshiba P35 laptop, opensuse 10.2, *nothing* is shown in Yast IDE
DMA Setup. Is this normal???
Additional explanation, when I say nothing is shown in Yast IDE DMA
Setup, I literally mean *nothing* not just no DMA option, I mean *no*
hard drive at all. That's what is really strange...
It might not be enabled, try the command hdparm -d /dev/hda to check if
it is enabled (you need to be root to run this command). If it is not,
you can enable it with the command hdparm -d1 to enable it. The man page
gives more information on the command. Also, it wouldn't hurt to check
the BIOS settings.
That is another strange thing about this laptop, the bios is virtually
void of any information. I mean yes, it shows the drive and basic
time/date information and has the ability to set the boot device, but
that is about it. There is a lot of stuff that just isn't
shown/configurable. This P4 laptop is aging yes, but as far as function
it has integrated 802.11g, firewire, usb, dvd-rw, multicard reader, etc.
but is has the smallest human bios interface known to man - go figure?
Maybe that is why Yast doesn't show the drive and why nobody has
configured a powersave suspend to ram acpi function.
Thanks for the help. If you have any other thoughts, please pass them along!
I rarely use yast, as I perform most tasks from the command line. On my
laptop, I noticed that it was using the 16-bit default for transferring
data from the ide controller to the bus. You can check this with the
hdparm -c /dev/hda command. While nothing can be done about the 16 data
transfer lines on the cable, you can improve the bus transfer by setting
the value to 1 or 3. Read the man page on this one, as some chipsets
want the value to be 3. Changing the bus transfer size does provide a
small boost to performance. You can test the results, with the command
hdparm -Tt /dev/hda.
Bill Anderson
WW7BA
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