Comment 103 for bug 1310489

It seems this Bug also affects ATI/AMD full sized graphic cards. I've had a problem on 4 different machines since 14.04 was released where it is impossible to enable both ATI GPUs. I have one machine running just 1 ATI card and that machine is functional, it has 6 xorg.conf.currentdate files in etc/X11. The other test 14.04.1 systems on spare hard drives installed yesterday have just one xorg.conf.currentdate files. I have been trying to say with AMD Catalyst 14.6 as that works best with the OpenCL Apps the machines run, however, I have the same problem with the FGLRX driver in Additional Drivers currently installing AMD-APP 1729.3. I have tried dozens of clean, fresh installs of different versions of 14.04.x, same problem in each one.

How do I fix this so it works the way it did in 12.04.x? I'm currently running 12.04.5 on my main machine with an AMD 7750 and 6970 simply because I can't get both cards enabled in any version of 14.04.x.