XPE is frozen after leaving XPE without any user-input for a long

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Guest

Here is so urgent and strange problem

We make XPE image for our DVR product, and the customer might use our
product(DVR based on XPE) with no user-input(from keyboard or mouse) for a
long time.

By the way, some of our customer report the system(XPE) frozen after leaving
it(XPE) without any user-input for a long time.

The symptom is stopping the system-working. (actually recording in this case)
And then, if user make a input by keyboard or mouse, the system works
properly again. (resume recording)

Absolutely, there is no screen saver or power management setting.

Anyone have an idear about this symptom?
Help me, please.
 
Hi David. This does sound like a power-management issue, but it may not
necessarily be due to a Windows component. Check the CMOS settings in your
product and see if any form of hardware power-management is enabled. Some
systems will use the hardware power-management settings in the absence of
any software to control those settings (such as the Windows PM API). If the
BIOS is set to handle power management, try disabling any applicable
settings and see if that helps.

--
Matt Kellner ([email protected])
STE, Windows Embedded Group

This posting is provided "AS IS" with no warranties, and confers no rights.
===============================
 
Thanks a lot Matt! :-)

But, all of our products are set by pre-modified bios file which have
disabled power-management option on assembly line.
And if BIOS were a cause of this problem, why this symptom is happened?
Would you give me more comments, please?

Regards

--
David Gu
IDIS Corp., Ltd.


Matt Kellner (MS) said:
Hi David. This does sound like a power-management issue, but it may not
necessarily be due to a Windows component. Check the CMOS settings in your
product and see if any form of hardware power-management is enabled. Some
systems will use the hardware power-management settings in the absence of
any software to control those settings (such as the Windows PM API). If the
BIOS is set to handle power management, try disabling any applicable
settings and see if that helps.

--
Matt Kellner ([email protected])
STE, Windows Embedded Group

This posting is provided "AS IS" with no warranties, and confers no rights.
===============================
Click to expand...
 
Not sure what else would be causing this issue. Admittedly, power
management issues are not my forte, so there's probably something in this
that I'm missing. If the BIOS is already configured to disable
power-management, then it most likely is a software component that's doing
this for you.

Does the system stop recording consistently after a certain measurable
amount of idle time? (eg. 5 minutes?) Or is it random? If it's random,
this would seem to indicate a software bug or a hardware problem. If it's
consistent and reproduceable, it still sounds like a power-management issue.
Beyond that, I'm not sure what else to suggest. (Anyone else here have any
ideas?)

--
Matt Kellner ([email protected])
STE, Windows Embedded Group

This posting is provided "AS IS" with no warranties, and confers no rights.
===============================

David Gu said:
Thanks a lot Matt! :-)

But, all of our products are set by pre-modified bios file which have
disabled power-management option on assembly line.
And if BIOS were a cause of this problem, why this symptom is happened?
Would you give me more comments, please?

Regards
Click to expand...
 
Thank you for your kind answer again.

Actually the symptom is not happened again after customer's reporting in
twice.
So I can tell you this problem is consistent and reproduceable, moreover
amount of idle time for this symptom is vero long - over 15 days.

Anyway, Thanks again.
I think it'll be fine.

Regards,
 
David,

You most likely have problem in driver for your video acquisiton card or problem with hardware itself.
Since you neeed more that 5, 30, 60 minutes time for problem to reocur then it is hardly related to any MS driver or BIOS settings
for that matter, sorry :-(

My wild guess about your problem is that this is IRQ related problem. Since your driver relly on IRQ to grab each frame or even part
of line, in case that this IRQ is not handled for some reason and you do not have some timer event in driver to handle this
sitruation then you will be frozen untill next IRQ arive. Depending on your card settings this IRQ might never arrive.
When you use keyboard or mouse there is a chance that IRQ is shared between then and your card so this could kick you driver so
start working again.

One things to make sure though that might cause yu a lot of time effort to diagnose. Make sure that your card do not share IRQ with
graphic card. You must do that from running XPe not from BIOS.
This is one of major reasaons why you might see this behaviour.

Regards,
Slobodan
 
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