linux-kernel - Re: Serial console problem in 2.6.21-rc7-mm1 and earlier

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Date:	Wed, 25 Apr 2007 11:32:43 -0400
From:	"John Stoffel" <john@...ffel.org>
To:	Christoph Lameter <clameter@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...dowen.org>
Subject: Re: Serial console problem in 2.6.21-rc7-mm1 and earlier

Christoph> On Tue, 24 Apr 2007, Andrew Morton wrote:
>> > Nothing special apart from 
>> > the usual problem with serial not accepting characters that we had for 
>> > awhile now.
>> 
>> I wasn't aware of that one.

Christoph> I use a serial console on my x86_84 box. For a while now I
Christoph> can see all output but I cannot type any
Christoph> characters. /dev/console broke?

I've sorta seen this problem too, but with gdm.  If I have my kernel
line setup like this:

	... console=tty0 console=ttyS0,9600n8

I have to stop and restart gdm (or switch to the XDMCP chooser and
back) to get keyoard access.  Wierd. 

Christoph> Simple WAR is to ssh into the box and I was usually too
Christoph> focused on other issues to do something about it.

Are you trying to access an X login prompter, or just a plain Virtual
Console tty?

John
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