From owner-freebsd-acpi@FreeBSD.ORG Mon Nov 28 17:15:50 2011 Return-Path: Delivered-To: freebsd-acpi@FreeBSD.org Received: from [127.0.0.1] (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by hub.freebsd.org (Postfix) with ESMTP id 93B63106566C; Mon, 28 Nov 2011 17:15:49 +0000 (UTC) (envelope-from jkim@FreeBSD.org) From: Jung-uk Kim To: freebsd-acpi@FreeBSD.org Date: Mon, 28 Nov 2011 12:15:25 -0500 User-Agent: KMail/1.6.2 References: <20111024184736.077bfc1b@o2.pl> <201111232051.03609.jkim@FreeBSD.org> <20111124073309.6771db36@o2.pl> In-Reply-To: <20111124073309.6771db36@o2.pl> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201111281215.28846.jkim@FreeBSD.org> Cc: Sebastian Chmielewski Subject: Re: Suspend and resume on Dell E6520 X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Nov 2011 17:15:50 -0000 On Thursday 24 November 2011 01:33 am, Sebastian Chmielewski wrote: > On Wed, 23 Nov 2011 20:50:58 -0500 > > Jung-uk Kim wrote: > > Usually, we cannot resume console on NVIDIA graphics, which often > > times lack or has incomplete VBE save/restore state function. > > I had kldunload nvidia in rc.suspend. Isn't that enough? No, it doesn't (can't) save/restore GPU state. In fact, nvidia.ko may help when you are suspending from X11. At least in theory, it should be able to save/restore GPU state correctly. However, a NVIDIA engineer once told me that the code path wasn't tested well because he couldn't find a right laptop to test at the time. It was long ago, though. Jung-uk Kim