I recently built a new PC with a Polaris GPU (full specs below), and I am intending to dual-boot Windows 10 and Linux. Unfortunately, it has now been two weeks, and I have yet to get any distro to work properly. This has been quite frustrating, to say the least. Kernel versions before 4.7 do not include the FOSS AMDGPU driver with Polaris Support, so it's necessary for me to install the proprietary driver in order to get good performance. At first I was using Kubuntu 16.04, and installed the driver successfully. However, seemingly almost every feature of the DE and the KDE software was broken to an unacceptable degree (it didn't remember my keyboard shortcuts, for example) and I preferred Mint over Ubuntu, so I had to hunt for a new distro. Eventually I discovered Mint KDE, which I am currently using. It's exactly what I've been looking for and the DE problems are gone, but now I'm back to having driver issues.
When I extract the driver from AMD's site (https://support.amd.com/en-us/kb-articl ... stall.aspx), and run the script as described in the linked instructions, I get the message "Unsupported OS" from the terminal. A reddit user reported the same problem in this thread (https://www.reddit.com/r/linuxmint/comm ... gpu_story/) but they didn't seem to find an answer (not from what I can understand in the thread, anyway).
So far, I seem to have basic functionality at normal speed at correct resolution, using no driver at all. The main issue is that I have tons of screen tearing, and of course any games are out of the question.
Windows 10 works fine, and the driver installed correctly, so it's not a hardware issue.
Any idea how I can get this to install?
About my system:
CPU: i5-6500 @3.2 GHz
Mobo: MSI B150m Mortar
GPU: Radeon RX 480 8 GB VRAM (powercolor reference card)
RAM: DDR4 8 GB
Monitor Resolution: 1080p @ 60 hz
I'll list any other info if you need it
Distro: Linux Mint 18 Sarah KDE Beta 64-bit
Kernel version: 4.4.0-36 generic
Fresh install from an hour ago, I haven't done anything but run the update manager (including kernel update) and attempt to update the driver
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sudo lshw -c video
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*-display UNCLAIMED description: VGA compatible controller product: Advanced Micro Devices, Inc. [AMD/ATI] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:01:00.0 version: c7 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list configuration: latency=0 resources: memory:c0000000-cfffffff memory:d0000000-d01fffff ioport:e000(size=256) memory:dfe00000-dfe3ffff memory:dfe40000-dfe5ffff