From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from balanced.mail.policyd.dreamhost.com ([208.97.132.119]:55720 "EHLO spunkymail-a12.g.dreamhost.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752443AbYLGJaL (ORCPT ); Sun, 7 Dec 2008 04:30:11 -0500 From: Yuval Hager To: Peter Stuge Subject: Re: BCM4312 Fails when xdm is started Date: Sun, 7 Dec 2008 11:29:27 +0200 Cc: Larry Finger , wireless , LKML , Michael Buesch , bcm43xx-dev@lists.berlios.de References: <200811151801.02369.yuval@avramzon.net> <200811250745.22487.yuval@avramzon.net> <20081125071818.9256.qmail@stuge.se> In-Reply-To: <20081125071818.9256.qmail@stuge.se> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4664892.LXOuEnOpdx"; protocol="application/pgp-signature"; micalg=pgp-sha1 Message-Id: <200812071129.32113.yuval@avramzon.net> (sfid-20081207_103036_623509_1167832B) Sender: linux-wireless-owner@vger.kernel.org List-ID: --nextPart4664892.LXOuEnOpdx Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Tuesday 25 November 2008, Peter Stuge wrote: > Yuval Hager wrote: > > I played around with different video drivers and the results are: > > * If using the 'via' driver, I lose the PCIe card immediately upon > > initialization > > * Using the 'openchrome' (trunk version), It works well in the > > beginning. > > After first blanking the register reads are all 1's, and then > > when the screen is blank I get a different read (some registers > > are correct, some are wrong), and when the screen is unblanked, I > > get 0xff's again. Very consistent and predictabe (same read every > > time). > > * Using the 'vesa' driver I could not recreate the problem. I could > > not get the screen to blank for some reason, but closing the lid, > > going on standby/hibernate, restarting X - all didn't matter much > > to the PCI and the wireless card kept on working. > > Good work! You have beyond any doubt established that the X graphics > driver can cause this problem. > This issue has been tracked down to be at the openchrome driver. It appears= =20 that somehow it corrupted the PCI bus, and damaged the device right after t= he=20 video card - the wireless card.=20 The current workaround for this is here -=20 http://wiki.openchrome.org/pipermail/openchrome-devel/2008-November/000139.= html -=20 but this is just a quick hack, not a fix, although it works great for me. T= he=20 openchrome team is working on a patch based on this. Thanks for all the help - I am a very happy HP2133 user, and a very happy=20 community member. This was an amazing opensource support experience, which= =20 I'll remember for a long time. Thank you all! Cheers, =2D-=20 Yuval Hager [@] yuval@avramzon.net --nextPart4664892.LXOuEnOpdx Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEABECAAYFAkk7l3wACgkQl7qmwPqEj9/YZgCaA52S5eURCyNoRQZWKSgL4dXD 1M4AnR1Dcr/XB0c2qfLRZR0anmb9r7K4 =Y056 -----END PGP SIGNATURE----- --nextPart4664892.LXOuEnOpdx--