Display won't come back up on HDMI until reconnect?

[mattress]

I just put together an HTPC, and I have it connected to my TV via HDMI/DVI.

PC consists of an mATX mobo, radeon 9800 pro, 3x pvr 150's, 2x256mb ram, chaintech av710 sound, and SageTV v4 with Sage MCE STV.


i've only had the PC setup for 2 days now. When I leave the computer idle at the main menu of SageTV, and switch the inputs on my tv from HDMI to Component1 (HD cable box), and then come back a few hours later, and change it back to HDMI, the screen doesnt' come up. I can HEAR it, just not see it. I have to unplug the cable and plug it back in.


i thought this might be an issue with a screen saver or power management or something, but i'm pretty sure I have all of that turned off.. hibernate,standby, screensavers, etc all off.

when I unplug the hdmi cable and plug it back in, it comes back up immediatly. I can also hear windows xp's "bloop" telling me new hardware has been found or whatever.

is there a way to stop this from happening?
Thanks for the info!

[flavius]

I can't find the thread, right now. But that appears to be the 'blanking' issue (in lack of a better word) with older cards. ATI very much likes you to buy the latest stuff, it seems. I had to switch to component, using the adapter you can get at newegg.

[Scriber]

I ran across this http://htpcnews.com/forums/index.php?showtopic=19188 If this is the same issue you are seeing it looks like an ATI driver issue...

[mattress]

wow thanks for the information. sounds like something ATI would do In that thread, it suggests rolling back to a previous driver version, i'll have to do that.

I also have the DVI-> component adapter, I haven't tried using it yet though... I may just have to run with that if I can't fix the problem. Thanks for all the information guys!