Messages in this thread | | | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: HDIO_SET_DMA failed on a Dell Latitude C400 Laptop | Date | Mon, 12 Jul 2004 17:37:34 +0200 |
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Make sure that you have the driver for your IDE chipset compiled-in or (if you are using IDE as module) that you load it and not ide-generic.
On Monday 12 of July 2004 15:22, Mark Watts wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > I've just burnt a cd for the first time on a Dell Latitude C400 laptop > > and I noticed that the system was quite sluggish while the burn was > > happening. (mouse pointer erratic, window redraw slow etc). > > > > Remembering a similar issue with a desktop system, I did the following to > > enable DMA on the hard drive (hdparm was giving ~3MB/sec read) > > > > # hdparm -c1 -d1 /dev/hda > > > > /dev/hda > > setting 32-bit IO_support flag to 1 > > setting using_dma to 1 (on) > > HDIO_SET_DMA failed: Operation not permitted > > IO_support = 1 (32-bit) > > using_dma = 0 (off) > > > > > > hdparm now reports ~7MB/sec which is better but still prety poor. > > > > > > Any ideas why I couldn't set DMA on the drive? > > > > > > CPU = Mobile Pentum 3 @1.2GHz (800MHz when booted with no power cord) > > Ram = 256MB > > HDD = IBM Travelstar (IC25N020ATDA04-0) 20GB > > BIOS Rev = A12 > > Kernel is a 2.6.7 kernel...
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