Edited by dance707 at 2016-3-9 07:11

My Quad Monitor Workstation had been working very well with Deepin untill the latest patches. Now xrandr gives a error when I try to enable the fourth monitor. This has been reported in Deepin User Feedback. For any other members that are running Dual AMD cards this was my temporary solution.
First I reinstalled Deepin 15.1 Then I manually updated the system with the latest deepin patches using Synaptic Package Manger. Upgrading the latest patches a few at time untill I was able to isolate the problem to the xorg xserver packages. Below is a screen shot of the packages in the Deepin Patches that I had to hold back from installing.