Monitor does not wake up after powersave

Inside my app (Full screen mode) I use PostMessage
(HWND_BROADCAST,
WM_SYSCOMMAND,
SC_MONITORPOWER, (LPARAM) 2); to turn off the monitor. However, when I use
PostMessage (HWND_BROADCAST,
WM_SYSCOMMAND,
SC_MONITORPOWER, (LPARAM) -1); (along with a mouse_event) it is not waking up
the monitor.
I use 2 monitors connected to GPU, Windows 8, directx9. Furthermore, I see that after sending the command to wake up the monitor (monitor still shows black) IDirect3DSwapCain9* is Null.

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Message Edited by farooqjilani on 03-09-2009 08:23 AM

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Hello natemac00,
Thank you for using Apple Support Communities.
For more information, take a look at:
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http://support.apple.com/kb/ht1573
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hi Parabola,
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Hi and thanks for joining HP Forums. Below are a couple of threads with multiple solutions to sleep/hibernate issues. Please read through these threads and see if any of these solutions will work to correct your problem. The mostly likely solutions such as allowing the video card to wake your computer and updating your drivers and BIOS are in the first link, but you may also find the solution in the second link.
http://social.technet.microsoft.com/Forums/en/w7itprohardware/thread/92e84b72-d2cc-4903-a564-c703565...
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Thanks!
I am an HP employee.
Please post rather than sending a Private Message. It's good for the community and I might not be able to get back quickly.- Thank you.
Please click the White Kudos star on the left to say thanks.
Please mark Accept As Solution if this resolves your issue.

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Resolution
Move the mouse or trackpad cursor over the center area of the login window so you can see the user icons. Click on the icon of the user that you would like to login as, type in the user's password, and press Return.
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Monitor does not wake up after powersave

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