From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Peter Senna Tschudin
<peter.senna-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Seiji Aguchi <seiji.aguchi-7rDLJAbr9SE@public.gmane.org>
Subject: Re: VT-d and x2apic: broken resume after suspend to ram
Date: Fri, 1 Nov 2013 17:02:06 +0100 [thread overview]
Message-ID: <20131101160206.GM17455@8bytes.org> (raw)
In-Reply-To: <CA+MoWDq4jYCD9zGaPA_Z4AL3Rj6hu4-rMEofn=8uWEGP6Tdruw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.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
WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: iommu@lists.linux-foundation.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Seiji Aguchi <seiji.aguchi@hds.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: VT-d and x2apic: broken resume after suspend to ram
Date: Fri, 1 Nov 2013 17:02:06 +0100 [thread overview]
Message-ID: <20131101160206.GM17455@8bytes.org> (raw)
In-Reply-To: <CA+MoWDq4jYCD9zGaPA_Z4AL3Rj6hu4-rMEofn=8uWEGP6Tdruw@mail.gmail.com>
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
next prev parent reply other threads:[~2013-11-01 16:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-01 12:37 VT-d and x2apic: broken resume after suspend to ram Peter Senna Tschudin
[not found] ` <CA+MoWDqoBxuFhBsf_rVBT1C8=mwj02hXgPfuWnjY4yeVa-84cA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-01 13:07 ` Joerg Roedel
2013-11-01 13:07 ` Joerg Roedel
2013-11-01 13:21 ` Peter Senna Tschudin
[not found] ` <CA+MoWDoDTFarOLUHgNmUFksRvV-R+7jufUwLbsS8ecaO+_m2kQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-01 14:21 ` Joerg Roedel
2013-11-01 14:21 ` Joerg Roedel
2013-11-01 15:47 ` Peter Senna Tschudin
[not found] ` <CA+MoWDq4jYCD9zGaPA_Z4AL3Rj6hu4-rMEofn=8uWEGP6Tdruw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-11-01 16:02 ` Joerg Roedel [this message]
2013-11-01 16:02 ` Joerg Roedel
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