From owner-freebsd-x11@FreeBSD.ORG Mon Jul 16 14:05:00 2012 Return-Path: Delivered-To: freebsd-x11@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 809441065673 for ; Mon, 16 Jul 2012 14:05:00 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id D82288FC0A for ; Mon, 16 Jul 2012 14:04:59 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q6GE55LV045830; Mon, 16 Jul 2012 17:05:05 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q6GE4qSK071414; Mon, 16 Jul 2012 17:04:52 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q6GE4qri071413; Mon, 16 Jul 2012 17:04:52 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Mon, 16 Jul 2012 17:04:52 +0300 From: Konstantin Belousov To: Kevin Oberman Message-ID: <20120716140452.GC2676@deviant.kiev.zoral.com.ua> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="PuGuTyElPB9bOcsM" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: freebsd-x11@freebsd.org Subject: Re: Intel GPU with KMS locks up when visualization enabled X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jul 2012 14:05:00 -0000 --PuGuTyElPB9bOcsM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jul 15, 2012 at 04:09:18PM -0700, Kevin Oberman wrote: > I don't have much information on this, but I wanted to enable VY-x on > my Lenovo T520 (Sandybridge). IT has been running for a few months > with the Intel GPU patches and now WITH_NEW_XORG and WITH_KMS. The > current system is 9.1-BETA1 installed yesterday. >=20 > If I enable "Virtualization" in BIOS, the system boots and runs fine, > but if I start Xorg and Gnome, I get several windows including > terminal windows and gkrellm up, but after a few seconds, the display > freezes. The only thing I have been able to do is to power it down. I > then disabled "Virtualization again, and all is well. >=20 > Any idea on what other information I can dig up? It's not critical as > I only use VirtualBox to boot Windows 7 when I need Visio or something > else that is only available on Windows.(No, no serial console. Darn!) SandyBridges has several absolutely show-stopper erratas for interoperation of VT-d engine and GPU. Linux disables several features, including RC6 and fake PPGT, when it detects that VT-d is active for GPU PCI device. And even then, it seems to still exhibit problems, last time I watched. Since FreeBSD has no VT-d driver, we cannot know the state of VT-d. Just disable it if you want to use GPU. --PuGuTyElPB9bOcsM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAlAEH4QACgkQC3+MBN1Mb4j9xQCgypNWJLwGCNY2MRbRgg+k6443 NnYAn3gs/ME9x2TFA/vHaYS6X+JOKQ5B =f3DU -----END PGP SIGNATURE----- --PuGuTyElPB9bOcsM--