[rufugee]

Thanks....I may try an AMD. I don't need 3D support either, but I do need compositing support (does no 3D mean no compositing? Not sure...).

Not having compositing on the linux desktop these days means you're a second class season. Both Unity and Gnome3 require it to function...if you don't have it, you have to fall back to Unity2D (incomplete user experience) or Gnome 2 (no longer supported. KDE actually does the best of the bunch when it comes to Xinerama so far, but I really prefer Unity or Gnome3.

I've read that if you buy two similar Nvidia cards (same GPUs), you can get compositing across three monitors, but I've not spoken with anyone who can verify. If anyone reading this can, please provide your vid card model.

Do you know if this Radeon HD 6450 will support compositing across three monitors? $60 is cheap to me to get this.

Thanks!

[prg318]

I'm currently using a NVIDIA GT218 (for one monitor) and a GT520 (for two other monitors) on my Arch Linux system. Although Xinerama support is nearly unusable with this setup (most likely due to the different chipsets on the cards), you can do TwinView (for two monitors) and a separate X screen (for the third) or 3 separate xscreens. I just do 3 separate xscreens (I'm a gamer and don't like to see my quake client stretched across two of my monitors and my TV :) ). You can't move windows between monitors with Xinerama or TwinView, but that's a sacrifice I was willing to make for my configuration. I am able to do compositing across all three of my monitors with this configuration.

Anyway, I hope this helps!

[idleloops]

That's useful to know.

[HNatWORK]

It looks like that specific card won't work for three monitors, because output #3 is hdmi and not displayport.