Comment 23 for bug 1061001

Affects me aswell.
I have two dedicated graphics cards, both listed below.

limeth@limebox:~$ uname -a
Linux limebox 3.16.0-44-generic #59~14.04.1-Ubuntu SMP Tue Jul 7 15:07:27 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

limeth@limebox:~$ fglrxinfo
display: :0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: AMD Radeon R9 200 Series
OpenGL version string: 4.5.13397 Compatibility Profile Context 15.20.1013

limeth@limebox:~$ sudo lshw -c display
[sudo] password for limeth:
  *-display
       description: VGA compatible controller
       product: Curacao XT [Radeon R9 270X]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:50 memory:e0000000-efffffff memory:f7e00000-f7e3ffff ioport:e000(size=256) memory:f7e40000-f7e5ffff
  *-display
       description: VGA compatible controller
       product: Pitcairn PRO [Radeon HD 7850]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:07:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=fglrx_pci latency=0
       resources: irq:51 memory:d0000000-dfffffff memory:f7b00000-f7b3ffff ioport:c000(size=256) memory:f7b40000-f7b5ffff