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For lack of a better term I get jitteryness whenever I extend my laptop's desktop to an external monitor using Xrandr, when using Catalyst/fglrx. It behaves a little differently depending on whether or not I'm using 3d rendering. For instance:
* In gnome and compiz, when I extend my desktop to an external monitor it gets jittery and flickery whenever I pretty much do anything (if it's just sitting there doing nothing its fine). if I move a window or open a menu, the jitter starts
* In a non-3d environment such as Openbox or xfce4, there's no jitter but there's a lot of artifacting around buttons or any element on the screen that moves around
This *only* happens when I use xrandr to extend the desktop. If I clone it, or use a single monitor, it works flawlessly.
Has anyone run across this? Is this a bug in the AMD drivers, or is there something that can be done to get extended displays working on this?
(PS: It's in a laptop with switchable graphics, AMD+Intel)
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I use 2 monitors with Gnome, Xfce and Openbox (separate installations/partitions on the same machine). I also use xrandr to extend the desktop. I don't have this issue and I don't have switchable graphics either. When using Openbox I use openbox-multihead-git but I did use normal openbox this way as well.
Simple and Open
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I use 2 monitors with Gnome, Xfce and Openbox (separate installations/partitions on the same machine). I also use xrandr to extend the desktop. I don't have this issue and I don't have switchable graphics either. When using Openbox I use openbox-multihead-git but I did use normal openbox this way as well.
Might you be able to provide your xorg.conf so I can compare? You're using a 7970m with Enduro?
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