This is probably a very simple problem, but for the life of me I cannot figure this out...
I bought a new Asus HD 6450 to upgrade from the integrated video driver on my basic HTPC, which is an Acer Aspire X1200-B1601A, Windows 7 32 bit, with an added dual-tuner Happenauge card.
Not trying to run a dual-monitor setup, just trying to bump up performance. I've had this basic setup for several years, worked fine, but I wanted to go with the Asus HD 6450 to boost performance and prevent the initial 'lag' I get when starting to watch programs off of WMC.
After installing the video card, and installing the drivers from the included CD, I switched my HDMI cable over to the new card, and was able to get a view of my desktop.
However, after trying to alter the resolution to a smaller one (which my Philips 32PFL3504D/F7 supports), I no longer was getting a signal, and from this point on I have not been able to get a signal, even after switching the resolution back to the original installed default. I continue to get a 'Format Not Supported' from my display, even though the resolution is configured the same for both the still active integrated card and the 6450.
I've already uninstalled and reinstalled the drivers for the 6450, and the card still doesn't display anything