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Inspiron 5748 power management problem
Hi
Since I updated my bios to A09 my laptop won't hibernate successfully - it appears to be powered down but won't power on: I have to hold the power button for 5 seconds, after which it will power back up.
This suggests to me that (ACPI?) power-off isn't succeeding correctly and the laptop is in some odd state.
I can't revert to the previous BIOS (because the installer refuses to allow it) so I can't be certain that it's a problem with the BIOS or if that's a coincidence - I've updated the BIOS 3 times since, each time hoping that the problem would resolve itself but it hasn't :(
I went into the BIOS and reset all settings to default, in case it was a problem with a corrupted NVRAM, but no joy.
I've tried updating all the drivers I can (as per the dell support site) but it makes no difference.
Any suggestions would be appreciated, I'm at a complete loss.
DELL-Rishi
2K Posts
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October 29th, 2016 16:00
Hi MARZBAR,
Does the system shutdown / restart fine? Do the auto sleep and manual sleep mode work fine? What is the current OS installed on the system?
Check these links on how to delete the hibernation file and then enable the hibernation again - restart and check - http://bit.ly/1jQEo5V | http://bit.ly/1S9m8WC
Enable the built in admin account and check - http://bit.ly/1JoFhcw
Also, please click my DELL-username and write me a private conversation with the service tag and your Name for case records.
Let us know if you have any other queries.
marzbar
8 Posts
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November 6th, 2016 12:00
Hi Rishi
Thanks for the reply.
Running Windows 10, you're correct in that shutdown doesn't work correctly either.
I enabled the administrator account and logging in as that user allows me to hibernate and shutdown as normal. That suggest there's something wrong with my Windows profile, I suppose? I'll look into that as a start.
DELL-Rishi
2K Posts
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November 6th, 2016 15:00
Hi MARZBAR,
Thank you for the update.
Login to your standard user account - perform a clean boot - http://bit.ly/1WdxyWy
This should give you a head start and you could isolate the application / service that might be causing the issue.
Let us know if you have any other queries.