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From: Ishan Oshadi Jayawardena <ioshadi@sltnet.lk>
To: Gerald Britton <gbritton@mit.edu>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: IDE-DMA woes
Date: Sat, 08 Dec 2001 13:47:58 -0600	[thread overview]
Message-ID: <3C126E6E.2633D01F@sltnet.lk> (raw)
In-Reply-To: <3C115106.BED6616D@sltnet.lk> <20011207113110.A3673@light-brigade.mit.edu>

Gerald Britton wrote:
> 
> reliably reproduce the problem.  I told Andre about the problem and he
> suggested doing a "hdparm -d0 -X08 /dev/hda" prior to suspend and that
> seems to work around the problem.  I "hdparm -d1 -X69 /dev/hda" on resume
> to get it back to speedy udma5 mode.  I think the problem is the BIOS doing
> things to the IDE chipset during the suspend, and the driver not properly
> correcting the changes on resume.
> 
>                                 -- Gerald

	Right. Thanks. I'll try it (hdparm -X66 actually, my drive only
supports udma2). (I know that it will work. I just want to know what's
_exactly_ wrong with my setup ;)

	-ioj
.

  reply	other threads:[~2001-12-08  7:44 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-07 23:30 IDE-DMA woes Ishan Oshadi Jayawardena
2001-12-07 16:31 ` Gerald Britton
2001-12-08 19:47   ` Ishan Oshadi Jayawardena [this message]
2001-12-08 21:09   ` Andre Hedrick
2001-12-08 21:56     ` Jacob Luna Lundberg
2001-12-08 22:11       ` François Cami
2001-12-08 22:25         ` J Sloan
2001-12-09  1:08           ` Simon Turvey
2001-12-10  8:31             ` Andre Hedrick
     [not found] <Pine.LNX.4.33.0112071247050.6985-100000@coffee.psychology.mcmaster.ca>
2001-12-08 19:47 ` Ishan Oshadi Jayawardena

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