linux-kernel - Re: serial console does not wake from S3 suspend

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Message-ID: <7EC4C3FDEFF6492F91DEE16AEE0831E6@vanni.it>
Date:	Fri, 30 May 2014 11:53:14 +0200
From:	"Valerio Vanni" <valerio.vanni@...ind.it>
To:	<linux-pm@...r.kernel.org>, <linux-serial@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Cc:	<gregkh@...uxfoundation.org>, <jslaby@...e.cz>,
	<baryluk@....if.uj.edu.pl>, <davem@...emloft.net>,
	<peter@...leysoftware.com>, <rjw@...ysocki.net>,
	<aaron.lu@...el.com>, <tianyu.lan@...el.com>
Subject: Re: serial console does not wake from S3 suspend

> When resuming from S3 suspend, serial console starts sending garbage
> on the serial port.
> Not continuously, it sends garbage only when in local console prints a
> text.
> It stops only when the (sending) machine is shut down, or if some
> text is sent manually (i.e. with "cat txtfile > /dev/ttyS0").
> 
> Full details are here:
> https://bugzilla.kernel.org/show_bug.cgi?id=69751

The problem is still present in 3.14.4, 3.15-rc7 and today's next.

I hope someone is going to look at this bug.

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