Using Toshiba TV as monitor for my HP laptop

Hello all,

I've searched over through the interwebs, but haven't been able to find my exact issue.

I have a Toshiba 22AV600U hooked to my HP Dv5 laptop with an HDMI cable. I have configured my laptop so that it will "Do Nothing" when the lid is closed.

With the laptop lid openend, the TV works perfectly! The resolution is what it is supposed to be. I am able to set the TV up as a clone or as a desktop extension with no problems. Also, I am able to have the TV as the sole monitor (the laptop is blank), but the lid is still open. When I close the lid, I get a "unsupported video signal". Again, everything functions normally when the lid is open, I only get problems when the lid is closed.

Originally, when closing the lid, the resolution on the TV wasn't correct. It would work with the lid closed, but the resolution was off. After fiddling with the resolution, I have changed something somewhere along the line and now all I get is the "unsupported video signal".

Although I would prefer that the resolution be correct with the lid close, I would take messed up resolution as opposed to "unsupported video signal".

Thanks for your help.

 

Do nothing? hmmm i would imagine it goes to sleep, hibernate, etc. I just keep my lid open n blank and watch the movies on the tv. maybe if you plug in an external mouse and keyboard, then close the lid maybe it wouldnt have that problem

 

Thanks for the response. Unfortunately I know the laptop is not sleeping or hibernating because when I do have it set in those modes, the TV indicates "No Video Signal".

From what I read, I am getting the "Unsupported Video Signal" because the laptop is not set to the proper resolution settings for the TV to recognize. If this is true, then why does the TV work properly when the laptop is open, and not work when the laptop is closed?