I was running a dual screen set-up (Acer monitor and a Toshiba 32 inch LCD TV via VGA to DVI on a GEForce 9800). That was all running fine for months but now I can't get the two to work at the same time.
Both will work on their own but when tried together, the TV will just show a black screen even though the displays are extended and I can move the mouse into the blank TV screen. I have tried different settings, resolutions, reinstalling the graphics drivers etc.
The only inkling I have is that the Nvidia control panel is setting the TV to 85hz refresh rate and it won't let me change to 60hz. Also, the TV used to show 'PC XGA' on-screen when it obtained the signal from the PC but now it only displays 'PC' and never picks up the signal. Any ideas?
Both will work on their own but when tried together, the TV will just show a black screen even though the displays are extended and I can move the mouse into the blank TV screen. I have tried different settings, resolutions, reinstalling the graphics drivers etc.
The only inkling I have is that the Nvidia control panel is setting the TV to 85hz refresh rate and it won't let me change to 60hz. Also, the TV used to show 'PC XGA' on-screen when it obtained the signal from the PC but now it only displays 'PC' and never picks up the signal. Any ideas?