problem in dual monitor with ATI RV370 [X600 SE]

Bug #1364619 reported by Arash Afshar
This bug affects 1 person
Affects Status Importance Assigned to Milestone
displayconfig-gtk (Ubuntu)

Bug Description

I have ubuntu 14.04 with unity and have installed two other desktops for it (lubuntu and gnome-shell). After the installation of these two, I could easily log in and out of each session of these desktops and still have both my monitors working.

After and upgrade, I had to reboot my system. Afterwards, dual monitor stopped working. I managed to make it work in lubuntu with Arandr but I still have problem with gnome-shell. Here is the problem:

If both monitors are attached and I log into a gnome-shell session. It will be unresponsive: it won't show anything except for the background image. But I can still use other ttys.

If I login with only one monitor connected. I works correctly. Then, if I connect the other monitor and try to detect it (either by xrandr or using gui) the image of both monitors will be distorted. The systems would still be responsive and I can get back to my one monitor setting by disconnecting the second monitor and running xrandr again.

Any idea how to fix it?

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