Thanks for all the help...
- From: Fuzzy <Fuzzy@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 8 May 2009 22:39:01 -0700
I think I might be looking at a hardware issue instead of a software issue.
However, I'd still be happy to hear from anyone who has thoughts on my
situation. Here's what I've found:
The computers are both IBM 4840-563 devices.
Computer A seemed to work fine in Windows XP Embedded SP2 other than it had
two devices listed under “other” in device manager; a PCI Serial Device, and
a Base System Device. The touchscreen wouldn’t work, but the display worked
properly.
Computer B worked fine in Windows XP Embedded SP2 other than the visual
display was out (the touchscreen worked).
Using Ghost, I imaged each computer's drive to avoid any corruption and just
utilized these hard drive images to test things. (Setting the original
drives off to the side to avoid corruption). Here’s what I found:
No matter which computer I placed Computer A’s drive into – the Base System
Device and the PCI Serial Device showed up under “other” in device manager
(as expected, I guess).
But here’s what I didn’t expect…when I placed Computer B’s drive into
Computer A, it lost the two drivers (which normally each showed up as a
“Multifunction Device”; IBM 4840-xx3 PCI Multi-I/O Controller; IBM 4840-xx3
Serial Controller) and they now showed up under “other” as PCI Serial and
Base System Device – just like on the other drive.
To confuse matters further, I was able to replace computer B’s
display/touchscreen with the display/touchscreen from computer A, and
everything worked perfectly – no deficiencies at all! Computer B works 100%.
Computer B was returned to the customer.
So, what we are left with is Computer A in the following state:
No output to the display
No touchscreen functionality
No valid drivers (still have items show up under “other” – even with the
good “Computer B” drive image applied).
We know that Computer A had the driver issue even with a known good display
and touchscreen (because this is the display/touchscreen now functioning
perfectly on Computer B).
We know that if we take computer B’s perfectly working drive image and place
it into Computer A, the Multifunction Device entry (and IBM 4840-xx3 PCI
Multi-I/O Controller & IBM 4840-xx3 Serial Controller subentries) disappear,
and instead, the two items; PCI Serial Device and Base System Device show up
under “other” in device manager. We know this occurred regardless of which
display/touchscreen was attached.
How is it that no matter which display/touchscreen we connect to computer A
(even with a known good image from computer B applied to it), that we still
receive the same problem in device manager, and the loss of the two drivers?
We have also switched out the two RJ45/serial/USB panels and interchanged
them between the two computers – it does not affect the symptoms at all.
So we have swapped hard drives, communications panels, and monitors - and
the symptoms remain the same…two devices listed under "other" and no
touchscreen functionality.
Again, it isn't necessary, as this forum isn't about hardware issues, but if
anyone sees a possibility of what the problem might be - I'd sure appreciate
the help! Otherwise, I'll consider the topic closed.
Thanks to everyone who helped - it gave me a few more things to eliminate
along the way!!
.
- References:
- VERY noob question, but need help
- From: Fuzzy
- VERY noob question, but need help
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