ATI Radeon 5850 + Windows 7 Dual Screen

[PermaChanged]

Hi all,

I've just installed Win 7 x64 on my machine and I'm having a little problem regarding dual screen setup.

When I was running Vista 32bit I had my monitor connected via DVI @ 1680x1050 and my TV connected via HDMI at 1920x1080 in duplicate mode. This was perfect as I would whack things on my monitor at full screen and then jump into bed to watch them on the TV.

Since I've installed Win 7 x64 it can only do a true duplication, so 1680x1050 on both screens, which means I have black borders on my TV.

I can run extended desktop and have independant resolutions, but I want duplication mode.

Does anyone know of a fix to run duplication mode with different resolutions depending on the screen?

I know for a fact that when running Vista the TV was running 1920x1080 as I had "Exact Scan" enabled, 1:1 pixel mapping, which it can't do on anything less than full HD, it wasn't just stretched to fit.

Hope you can help!

 

[SiriusB]

Not in a position to search at the moment, but out of curiosity, what is wrong with moving the movie/whatever over to the second display when using Extended Desktop?

 

[PermaChanged]

I just prefer duplication mode, as I never use it as an extended desktop.

I've got a fix which is working temporarily which is to upscale the 1680x1050 to 1920x1080 using the graphics card, but this isn't ideal.

What I don't understand is why it used to work in Vista (also XP from searches I've done) but not in Win7.

Would it most likely be a graphics driver issue or something within Win 7 causing the problem?