I have an R9 380 G4 GC and I'm unable to support the second monitor because Zorin is using a fallback generic driver that is running the card at 33Mhz (painfully slow that...)
I've tried installing the generic debian OEM graphics driver from AMD but I get an error stating that Zorin is not supported.
From what I understand Zorin is not terribly different from a normal debian install.
Is there a way to trick the software into thinking it is installing on a supported system so as to force compatability?
This is the error I get when I try to install using AMD's guide:
[sudo] password for ******:
Unsupported DEB-based OS: /etc/os-release ID 'zorin'
This is the active controller...
description: VGA compatible controller
product: Tonga PRO [Radeon R9 285/380]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:09:00.0
width: 64 bits
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:85 memory:d0000000-dfffffff memory:e0000000-e01fffff ioport:e000(size=256) memory:fcf00000-fcf3ffff memory:c0000-dffff