Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752818AbaBNNq1 (ORCPT ); Fri, 14 Feb 2014 08:46:27 -0500 Received: from mail-ve0-f173.google.com ([209.85.128.173]:59522 "EHLO mail-ve0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752337AbaBNNq0 (ORCPT ); Fri, 14 Feb 2014 08:46:26 -0500 MIME-Version: 1.0 In-Reply-To: References: <52FCFD92.7040109@hurleysoftware.com> Date: Fri, 14 Feb 2014 21:46:25 +0800 Message-ID: Subject: Re: Lenovo X240 (haswell) suspend-to-ram hangs on 3-14.0-rc2 From: Jeff Chua To: Takashi Iwai Cc: Peter Hurley , lkml , Dave Airlie Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 14, 2014 at 1:28 AM, Takashi Iwai wrote: > At Thu, 13 Feb 2014 12:14:58 -0500, Peter Hurley wrote: > Apparently there's no maintainer but I've cc'ed people who might > have a clue about this. Peter ... thanks for pointer. > On Fri, Feb 14, 2014 at 1:28 AM, Takashi Iwai wrote: > Is it a Intel+Nvidia hybrid? If so, does it happen even with > CONFIG_VGA_SWITCHEROO=n? It's not Intel+Nvidia. It's Intel Core i7-4600U 2.1 GHz, Intel HD Graphics 4400. I checked my config. CONFIG_VGA_SWITCHEROO is not set. On Fri, Feb 14, 2014 at 5:21 AM, Theodore Ts'o wrote: > For what it's worth, I have a the X240's bigger brother --- a T540p > (with intel graphics and the 3k panel) running 3.14-rc2, and > suspend-to-ram is working without any problems on my laptop. Interesting. Perhaps it's the USB options. I had these set to "y" CONFIG_USB_XHCI_HCD=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_ROOT_HUB_TT=y CONFIG_USB_EHCI_TT_NEWSCHED=y CONFIG_USB_EHCI_PCI=y Again, These same config works find on X230. It's very strange. The same hard disk (SSD) can suspend-to-ram on the X230 but not on the X240. The X230 has i7-3520M vs X240 i7-4600U. I've even tried with all the USB set to "n" and still couldn't S2D. May be the graphic? Thanks, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/