I know this is an odd one... HDMI handshake blank....

[JohnInSJ]

GBPVR suffers from this problem. For example see:

http://www.xpmediacentre.com.au/communit...oblem.html

General google search for the issue:

http://www.google.com/search?q=windows+d...put+switch


If you use HDMI, and your LCD/TV is energystar compliant (or for some other reasons...) it turns off the HDMI port when you change inputs away from your media box (for me a shuttle running GBPVR under XP, intel video.

Unless you change the default xp sound profile, you can actually hear the XP "unload device" sound a few seconds after changing the input on the TV.

That's all good, but the problem is when switching back to the gbpvr input. What happens is the device comes back on, but for whatever reason GBPVR does not repaint the screen... it's just black.

Edit: The same behavior happens if you power off the LCD/TV for a few seconds or more. When you turn it back on, even if it is on the right input, it stays blank.

The only way to get the display back is to exit to the desktop. As soon as I hit the desktop, the display comes on. I have "solved" this for now by mapping the hauppauge power button to an "exit foreground app;wait 1 second; start pvrx2" action. That does it, but its kinda a pain in the rear...

I'm thinking there is some low level system event gbpvr can register for, and then there is something it can do to re-init the display... but maybe not? Windows does something to re-enable the screen when you hit the desktop, so it must be possible...

If gbpvr could handle things correctly that would be sweet.

[sub]

Sounds like a bug with your videocard to me.

[JohnInSJ]

Sounds like a bug with your videocard to me.

Yeah, except its a longstanding issue with hdmi out, per the thousands of posts you find in the google search.

No worries, I'll just keep doing the exit to the desktop dance.

Thanks for taking a look at the post, anyway.

[herrmannj]

Hi,

I'm not at my pvr this time but what I remember:

look at your running processes, you will find somthing like "igfxpers.exe/dll" or so. Stop it and prevent it from autostart (you know how to do this?).

there is no sideeffect.

joerg

[JohnInSJ]

I'm game to try anything...

tried it...

OMG - it works.

Wow... thanks. Like 100x. This has been driving me batty for months.

Sub was right.... my bad.

[herrmannj]

yeah, that was driving me crazy too - some guy at the avsforum gave me that tip and I was happy as you. The bad is that you cannot record one show and while the recording is going on switching on the tv. I dont know why intel do not remove that feature :-) (bug) for so a long time. I was talking to an intel guy that wasnt aware of it at the start of 2008. Because he is an friend so he offered me to investigate it but because I found that solution I never gone that way.