drivers - problem with dual amd graphics card amd radeon r5 A8 and radeon r7 m260

Good day I have problem with dual AMD graphics card AMD Radeon R5 A8 and Radeon R7 M260. Hope, you can help me, I try to install drivers at additional driver in Ubuntu, try download and install from official website and I can't switch on Radeon R7 M260 on laptop.

I have only on amdcccle and no result.

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Ok, I have laptop, I have dual graphics cards

1. AMD A8 radeon R5 Graphics (DDC Display AMD Radeon (TM) R5 Graphics)


2. AMD Radeon r7 m260 (Unknown display)

How can I install driver and switch GPU on radeon r7 m260?

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sudo aticonfig --list-adapters
* 0. 00:01.0 AMD Radeon(TM) R5 Graphics        
  1. 01:00.0 AMD Radeon R7 M260

How to switch adapter?

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$ lspci -k | grep -EA2 'VGA|Display'
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon APU A4-6000 with R2 Graphics] (rev 05)
    Subsystem: Hewlett-Packard Company Device 2269
    Kernel driver in use: fglrx_pci
--
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260]
    Subsystem: Hewlett-Packard Company Device 2269
    Kernel driver in use: fglrx_pci