drivers - 16.04 change from Intel HD Graphics to Radeon

sudo lshw -c video

I get:

  *-display
       description: VGA compatible controller
       product: HD Graphics 520
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 07
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915_bpo latency=0
       resources: irq:277 memory:d1000000-d1ffffff memory:b0000000-bfffffff ioport:f000(size=64)
  *-display
       description: Display controller
       product: Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 81
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:278 memory:c0000000-cfffffff memory:d0000000-d003ffff ioport:e000(size=256) memory:d0040000-d005ffff
    lspci -nn | grep VGA
    00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 520 [8086:1916] (rev 07)
    xrandr --listproviders
    Providers: number : 3
    Provider 0: id: 0x66 cap: 0x9, Source Output, Sink Offload crtcs: 4 outputs: 3 associated providers: 2 name:Intel
    Provider 1: id: 0x3f cap: 0x6, Sink Output, Source Offload crtcs: 0 outputs: 0 associated providers: 2 name:HAINAN @ pci:0000:01:00.0
    Provider 2: id: 0x3f cap: 0x6, Sink Output, Source Offload crtcs: 0 outputs: 0 associated providers: 2 name:HAINAN @ pci:0000:01:00.0

Is there anything I can do so I can make it to switch to the radeon?
According to this the Radeon driver is already pre-installed

Proprietary Radeon drivers are not supported in 16.04. Forcing an install, or keeping them installed during an upgrade will cause issues, if you can even get them to install.

For now, 16.04 is using opensource AMD Drivers, but, they're not very good and not reliable. Performance is also a huge issue.

Unfortunately for those of us using the AMD graphics, we need to wait, and use the Intel HD graphics (If you're lucky to have it) until then.

See

https://help.ubuntu.com/community/RadeonDriver

http://www.omgubuntu.co.uk/2016/03/ubuntu-drops-amd-catalyst-fglrx-driver-16-04