I have been working on a college project which is to fly on a sounding
rocket as part of the European Space Agency's REXUS program. The main
controller hardware consists of a PC/104 stack. We were initially using
Linux as the OS but had problems with some of the hardware. I would have to
write a driver for a frame grabber which is outside my comfort zone and we
are very limited with time. There were some other problems with the DAQ
hardware so eventually we had to send it back to the supplier and the
diagnosis was a 'faulty catalyst module'. To save time we had to get XP
Embedded installed while they had it as the frame grabber drivers were
functional for Windows. It worked as normal for a few days but now we have a
weird problem.
Usually on boot we would get the usual option to hit F2 for BIOS access and
F12 for boot options. However, now we get no visual feedback until it logs
directly into Windows (flashing up the 'Press Ctrl-Alt-Del to login' for
barely a second before it automatically logs in). We don't even see the XP
'blue slug' loading bar before it gets to this. If I do press F2/F12 on boot
it just hangs on a blank screen.
There are two graphics interfaces on the board, a VGA and a single-channel
LVDS 24-bit interface. The theory is that the bios has somehow reverted to
using the LVDS as its primary display, only switching to VGA when Windows
has loaded.
Pressing F3 on boot should reset the BIOS to defaults and restart the
machine but we just get the same result. We absolutely need to access the
BIOS and the only solution from the supplier is to send it back to them
again which would be a disaster as we don't have another week to spare and
have to hand it over to ESA in two weeks.
I was wondering if anyone has access to an LVDS display that we could use
for couple of minutes to test if this is the problem? If it is we could just
access the BIOS and set the primary display back to the VGA interface. It
would be a great help and we would very much appreciate any help or
suggestions you may have.
--
Cheers,
Sonic
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!