Date: Sun, 22 May 2005 19:34:14 +0200 From: Michael Nottebrock <lofi@freebsd.org> To: freebsd-stable@freebsd.org Cc: Janet Sullivan <ciscogeek@bgp4.net> Subject: Re: hw.ata.atapi_dma in 5.4-RELEASE-p1 Message-ID: <200505221934.17587.lofi@freebsd.org> In-Reply-To: <4290A576.4010900@bgp4.net> References: <4290A576.4010900@bgp4.net>
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--nextPart2475508.GuTn7KHHVK Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Sunday, 22. May 2005 17:29, Janet Sullivan wrote: > I am unable to get my DVD or CD drives out of PIO4 mode on two machines. > One has an ICH3 controller, the other is Nforce2 based. > > When I put hw.ata.atapi_dma=3D"1" in /boot/loader.conf and reboot, I'm > still stuck in PIO4. What am I doing wrong? The drives probably don't support any UDMA modes. WDMA modes aren't enabled= =20 for atapi devices because there's a very large number of devices which don'= t=20 implement them right or not at all, yet claim to support them. You can enable whatever DMA modes those drives support with the atacontrol= =20 utility after the kernel has booted up. =2D-=20 ,_, | Michael Nottebrock | lofi@freebsd.org (/^ ^\) | FreeBSD - The Power to Serve | http://www.freebsd.org \u/ | K Desktop Environment on FreeBSD | http://freebsd.kde.org --nextPart2475508.GuTn7KHHVK Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQBCkMKZXhc68WspdLARAlpjAJsHK7NYdfQUynXIXURup0tTx5jgKQCfWoDv 0Dys7Yazr8kHyO/TuuF+BK8= =LK+g -----END PGP SIGNATURE----- --nextPart2475508.GuTn7KHHVK--
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