From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753211Ab3KAQCL (ORCPT ); Fri, 1 Nov 2013 12:02:11 -0400 Received: from 8bytes.org ([85.214.48.195]:38526 "EHLO mail.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752698Ab3KAQCK (ORCPT ); Fri, 1 Nov 2013 12:02:10 -0400 Date: Fri, 1 Nov 2013 17:02:06 +0100 From: Joerg Roedel To: Peter Senna Tschudin Cc: iommu@lists.linux-foundation.org, "linux-kernel@vger.kernel.org" , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Seiji Aguchi , Konrad Rzeszutek Wilk Subject: Re: VT-d and x2apic: broken resume after suspend to ram Message-ID: <20131101160206.GM17455@8bytes.org> References: <20131101130702.GA3348@8bytes.org> <20131101142115.GK17455@8bytes.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-DSPAM-Result: Whitelisted X-DSPAM-Processed: Fri Nov 1 17:02:08 2013 X-DSPAM-Confidence: 0.9993 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 5273d08020861225120852 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 01, 2013 at 04:47:47PM +0100, Peter Senna Tschudin wrote: > Only serial ports over USB: > usb 2-1.3.2: pl2303 converter now attached to ttyUSB0 > > The issue with no_console_suspend is that the monitor is powered off > on suspend and never resume after that. The external monitor enters in > power save mode during suspend and also never resume. Do you know if > replacing my wifi/bt card by this: > > http://www.startech.com/Cards-Adapters/Serial-Cards-Adapters/2-Port-RS232-Mini-PCI-Express-Serial-Card-16950-UART~MPEX2S952 > > would enable to use the serial console for seeing kernel debug messages? Who knows, depends on the BIOS in your machine, I guess. But I would say there is a at least a better chance with this than with a USB-Serial adapter. Joerg