From: Darren Hart <dvhart@linux.intel.com>
To: Wolfgang Denk <wd@denx.de>
Cc: poky@yoctoproject.org
Subject: Re: Serial console unusable with poky-image-sdk
Date: Thu, 27 Jan 2011 14:33:58 -0800 [thread overview]
Message-ID: <4D41F2D6.4040406@linux.intel.com> (raw)
In-Reply-To: <20110127114216.744AEB335@gemini.denx.de>
On 01/27/2011 03:42 AM, Wolfgang Denk wrote:
> Hi,
>
> in message<20110127111132.C69A3B335@gemini.denx.de> I wrote:
>>
>> it seems that for some time (probably back to laverne-4.0) the serial
>> console port is basicly unusable in the poky-image-sdk file system.
>> I tried this in several PPC and ARM configurations, and the behaviours
>> is pretty much the same: login works fine, but at the shell prompt
>> only one out of N input characters (N usually between 2 and 10) gets
>> through to the shell.
> ...
>> Is there a way to stop dbus-launch from concurring with a login shell
>> on the serial console port?
>
> This patch appears to be working fine for me:
>
>> From: Wolfgang Denk<wd@denx.de>
>> Subject: Stop dbus-launch from interfering with a serial console
>
> Signed-off-by: Wolfgang Denk<wd@denx.de>
> ---
>
> diff --git a/meta/recipes-graphics/x11-common/x11-common/etc/X11/Xsession b/meta/recipes-graphics/x11-common/x11-common/etc/X11/Xsession
> index a87447a..0b73127 100644
> --- a/meta/recipes-graphics/x11-common/x11-common/etc/X11/Xsession
> +++ b/meta/recipes-graphics/x11-common/x11-common/etc/X11/Xsession
> @@ -2,7 +2,7 @@
>
> if [ -x /usr/bin/dbus-launch ]; then
> # As this is the X session script, always start a new DBus session.
> - eval `dbus-launch --sh-syntax --exit-with-session`
> + eval `dbus-launch --sh-syntax --exit-with-session</dev/null`
> echo "D-BUS per-session daemon address is: $DBUS_SESSION_BUS_ADDRESS"
> fi
>
you can also append "console=tty" to the kernel command line and the
serial console should work. I've run into this on a couple platforms as
well and addressed it this way. This isn't just an X11 issue as I
usually boot -minimal images.
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
next prev parent reply other threads:[~2011-01-27 22:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 11:11 Serial console unusable with poky-image-sdk Wolfgang Denk
2011-01-27 11:42 ` Wolfgang Denk
2011-01-27 22:33 ` Darren Hart [this message]
2011-01-28 7:05 ` Wolfgang Denk
2011-01-28 16:44 ` Darren Hart
2011-01-28 16:51 ` Wolfgang Denk
2011-01-28 16:56 ` Gary Thomas
2011-01-28 17:51 ` Richard Purdie
2011-01-28 17:16 ` Darren Hart
2011-01-28 17:20 ` Richard Purdie
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