Computer Error Fixer: Fast Solution to Error: back light fails to restart after a resume from sleep

back light fails to restart after a resume from sleep

My back light fails to restart after a resume from sleep.
This behavior started a few days ago after a windows update.
This machine has been resuming after sleep just fine since 12/08/2010.
When I start up my HP dv7 notebook after a sleep I can clearly see the windows 4 panel glowing logo - back light is clearly working.
Then the back light goes out.
The machine is running normally - I use it if I connect an external monitor.
Shutting down and restarting clears this issue.
I do not see this problem using hibernate.
I have updated the ATI drivers.
This must be a software issue - windows is directing the back light to turn off.

UPDATE (9/24/2011): Check out:
http://social.technet.microsoft.com/Forums/en/w7itprogeneral/thread/aaf2e7e8-9dc3-4295-ab7a-0eda2f9ed14f#25a12ce0-1ea4-459b-a222-ac973953e2af
In the advanced power settings under PCI EXPRESS set the Link management to "MAXIMUM POWER SAVINGS".

Will be testing this week, but I think this is the solution.

Anwsers to the Problem back light fails to restart after a resume from sleep

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Thanks -
This appears to have done the trick.
I down loaded the driver from HP.COM (no small feat - confussing support site - too many options - too many results on searches) and installed.

UPDATE: 2011-feb-02
The driver update to not work.
I still am seeing the backlight fail on Sleep (slapping the shut).
What I have discovered is if I re-close the lid, repeat plugging the power in and removing it seval times, then opening the lid the back light activates.
Is it hardware? I don't think so.

To install drivers and other optional updates

To install optional updates, you need to review and then select them from the list of updates that Windows finds for your computer. Optional updates are not installed automatically.
Open Windows Update by clicking the Start button Picture of the Start button, clicking All Programs, and then clicking Windows Update.
In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer.
If any updates are found, click View available updates.
Select the optional updates that you want, and then click Install. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

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