Date: Tue, 30 Dec 2008 10:37:54 -0800 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Re: Laptop w/ dark screen & no (working) keyboard Message-ID: <20081230183754.GN4100@albert.catwhisker.org> In-Reply-To: <1230661597.46401.18.camel@squirrel.corp.cox.com> References: <20081209230134.GC60731@albert.catwhisker.org> <20081209232209.GD60731@albert.catwhisker.org> <20081230170926.GK4100@albert.catwhisker.org> <A08D3C37-B770-4144-A8D4-97A758519288@gmail.com> <20081230180420.GM4100@albert.catwhisker.org> <1230661597.46401.18.camel@squirrel.corp.cox.com>
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--Y9+TIksX9Q+3VPs6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Dec 30, 2008 at 01:26:37PM -0500, Robert Noland wrote: > ... > It is possible that drm is waiting for resources, but I'm doubtful that > drm is the real problem. It sounds like the screen is going black when > X attempts to start. Yes, it's in the transition from "text" to "graphics" mode. I use xdm on the laptop; I also run RELENG_6 & RELENG_7 (from other slices), and until the first week of December, I don't recall seeing this before. > You could try disabling drm in your Xorg.conf and > see it that helps. (Option "DRI" "off" in the device section). OK; worth trying. > Do all > of the drm messages appear on the console before it hangs? Yes, but they also appear when it doesn't hang (whether running RELENG_6, RELENG_7, or HEAD). > I'm most suspicious of the acpi errors/warnings, but that isn't > an area that I have experience with. I believe an appropriate technical term is "black art." :-} OK; the laptop has rebooted (following the above-cited change), and for a "sample size" of 1, there was no period longer than about a second or so that the screen stayed dark. So if that's repeatable, I'd suspect something involving DRI/drm, possibly involving interrupt handling...? =20 > robert. Thanks for the suggestion. Peace, david --=20 David H. Wolfskill david@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --Y9+TIksX9Q+3VPs6 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAklaaoEACgkQmprOCmdXAD05jwCePGpCtS4wUP5jwmmKlSnI8Yau 0VoAnjfsRH35niSEkCXeWytU1agd2ATS =0ex2 -----END PGP SIGNATURE----- --Y9+TIksX9Q+3VPs6--
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