I've tried to install the latest available driver from AMD amdgpu-pro-19.30-855429-ubuntu.
and when i install this driver I can not access the computer it gives an error regardingVGA.
Down you can see that my driver appears to use also radeon driver but a have only frames in games and screen tears of screen. The problem is that i can not select what video card to use..maybe there is some command to set up the radeon card as primary?
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
Subsystem: Dell 3rd Gen Core processor Graphics Controller [1028:05b8]
Kernel driver in use: i915
Kernel modules: i915
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01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8730M] [1002:6601]
Subsystem: Dell Mars [Radeon HD 8730M] [1028:05b8]
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu