E1505/6400 and the Blackscreen when the AC is pulled

I noticed that sometimes when my computer is on, and I unplug the AC adapter, the screen turns black, and I unable to do anything (ie, close screen to hibernate, ctrl+alt+del...). Only solution is to do a reboot by holding down the power button. Has anyone else experienced this problem or can offer possible solutions?

 

I have experienced this a few times. I'm not sure what causes it, or how to prevent it. I just hold the power button down, let it sit for about 10 minutes, then turn it back on.

 

ya i too experienced it once

it was something else i guess.. the screen went blank, did not ragained live state.. had to boot system again by pressing the power button for a long time

anysolutions ? or even the cause of this ?

 

The problem that is sort of similar is when I leave my notebook alone for a while it will turn of the monitor and when I return I cannot boot it up into windows. I have tried everything to start it but the only way around ti is to turn it into standby by or reboot the system.

 

Same problem here when i leave my laptop alone for awhile. I think it has to do with the settings in the quickset or something. Something to do with hibernating, since whenever my system hibernates, it freezes.

 

this thread needs help ...

Calling Dell Experts !!

 

I would recommend checking the Power Management Options for the system (Control Panel > Power Options). Make sure the LCD (display) is set for 'Always On' for both battery and AC power, then see if the problem continues to happen.

While you will probably want to set the screen to be turned off after a certain amount of time idle, especially when on battery, for testing having it set to always on will help us tell whether the power management settings are part of the problem.


Larry
Dell Customer Advocate

 

still happens due to AC power plug !!

any solutions ?

 

its well documented that its the integrated graphics driver causing this.

I had same on my 640m, i tried downgrading and upgrading the graphics driver, and the problem seems to be fixed.

Larry the Dell Customer Advocate should have known this.

 

i have the same problem - but i do not have integrated graphics.

 

I also use an Inspiron 6400 with an ATI Mobility Radeon X1400 grafic card with Windows XP Media Edition and have the same issue. With the Dell hotline I have gone through the following standard procedures:
1.) Update Bios
2.) Update Grafic driver
3.) Restore the complete system partition from the recovery partition
4.) Completly format the system partition and reinstall Windows XP with the latest grafic driver from Dell home page
5.) Use the latest grafic driver from ATI
A lot of work and hours has gone, but nothing has solved the problem.

What I have seen is, that switching of the hardware acceleration for the grafic card in the windows display setting "solves" the problem. Because this is no real solution, I am still working on this problem.

For the German Dell hotline the problem is totally new and now they want to change the Motherboard and the grafic card, but when I read this thread, I am not really convinced in their procedure. Because the German hotline don't know the root cause, diassemble the Notebook and exchange hardware may not solve the problem.

I have found a lot of discussions about the same problem in other threads:

http://forum.notebookreview.com/showthread.php?t=78053

or

http://forum.notebookreview.com/showthread.php?t=78772

or

http://forum.notebookreview.com/showthread.php?t=116808

Under some conditions like:
- pluging the AC-Adapter
- activation of the power save modus (switching of the display)

the system sometimes (not always on my computer) will hang up.

The best and longest discussion to my point of view is included in

http://forum.notebookreview.com/showthread.php?t=78772

Everybody with the problem above should look in future there.