We have a Linux 2.4 running on a Kontron Dimm-PC.
The system Software is not running properly, when we
let run it without a VGA graphic card module installed.
any idea for us?
Is there any Switch to ignore the Grafic card BIOS
Kindest regards
Nils Köhler
-----------------------------------------------
Nils Köhler
IBT Interfaces
Im Taubhaus 19
63322 Rödermark
Germany
Tel: +49-6074-6964-160
Fax: +49-6074-6964-161
I think you should disable video support into the kernel and change kernel
boot options in order to send console output to a serial port (ttyS0)
instead of (tty0) for example.
Kind regards
Marco Cavallini
==============================================
Koan s.a.s. - Software Engineering (x86 and ARM)
Linux and WinCE solutions for Embedded and Real-Time Software
Klinux : the embedded distribution for industrial applications
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Via Pascoli, 3 - 24121 Bergamo - ITALIA
Tel. (++39) 035-255.235 - Fax (++39) 178-223.9748
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What do you mean by "System Software"? Linux Kernel, BIOS ?
> Is there any Switch to ignore the Grafic card BIOS
You can configure Linux to use e.g. a serial port as console and
you can remove the VGA console driver from the kernel. That should
do the trick as far as Linux is concerned.
For the BIOS: most of them need a VGA card/Keyboard for the configuration
dialog, so setting up the board configuration (and fixing it if there
was, e.g. a CMOS checksum error ...) can only be done with a VGA card
installed. Most BIOSes, however have an option where you can select
wether a VGA/EGA card is "installed". I forget the names of the
proper selections to be made, but this usually allows you to put
the board into a mode where it will boot without a VGA.
HTH
Rob
--
Robert Kaiser email: rkaiser AT sysgo DOT com
SYSGO AG http://www.elinos.com
Klein-Winternheim / Germany http://www.sysgo.com
<invalid-d...@sig.com> schrieb im Newsbeitrag
news:ctnm9p$atk$01$3...@news.t-online.com...
>In article <ctnl43$s7p$00$1...@news.t-online.com>,
> "Nils Koehler" <nils.k...@ibt-interfaces.de> writes:
>> We have a Linux 2.4 running on a Kontron Dimm-PC.
>> The system Software is not running properly, when we
>> let run it without a VGA graphic card module installed.
>
>What do you mean by "System Software"? Linux Kernel, BIOS ?
>
>> Is there any Switch to ignore the Grafic card BIOS
>
>You can configure Linux to use e.g. a serial port as console and
>you can remove the VGA console driver from the kernel. That should
>do the trick as far as Linux is concerned.
>
>For the BIOS: most of them need a VGA card/Keyboard for the configuration
>dialog, so setting up the board configuration (and fixing it if there
>was, e.g. a CMOS checksum error ...) can only be done with a VGA card
>installed. Most BIOSes, however have an option where you can select
>wether a VGA/EGA card is "installed". I forget the names of the
>proper selections to be made, but this usually allows you to put
>the board into a mode where it will boot without a VGA.
>
There is a VGA card emulator with a serial port available. You plug
this card into the PC, and it simulates enough of a VGA card to fool
the BIOS. All output to the console is then converted to a normal
RS-232 serial stream. I have forgotten the name of the company,
but it should be in the archives.
Regards
Anton Erasmus