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Comment by andyl | Hacker News Reader

Have you tried Gnome? I also use 2 monitors, and hope that Gnome on 12.04 supports multi-monitors well.

I'm using 3 monitors in 12.04 under Unity without a hitch! Then again, I'm using 1 ATI video card (with 3 outputs) and the proprietary ATI driver.

Unity has great support for multiple-monitors. Many, if not most, of the problems are due to: X, the video card drivers and Xinerama.

Huh. Then I'll give it a try.

I always disabled Unity until now, precisely for the reason that it didn't work for me on this laptop that is often docked with 2 monitors.

Yep...in case anyone comes back to this thread, I purchase an AMD Sapphire Radeon FLEX HD 6770 1GB DDR5 PCIe 2.1, and Unity works perfectly across all three now using the proprietary drivers, and setting the "Multi-display desktop" option for each monitor in the amdcccle utility.

I haven't tried it with 12.04 yet, but I've had poor experience getting Gnome installed and running decently in the last couple versions of Ubuntu. It seems like Fedora is the easiest way to use it.

I have. Gnome 3 refuses to load with three monitors on Xinerama...but I have heard it works ok with two...just as Unity does. It's when you go to three that things get rough.

I've been using Gnome3 (on Fedora) with 2 monitors for a while now, and it works perfectly.

I use Unity with 2 monitors and it is pretty good; but I didn't try Gnome

I run with Unity in one window and Windows xp in vmware in another 24" without problems. Gnome works too.

All you need to ensure is you have decent video card/drivers

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