This might explain why there are no Ubuntu AMD Drivers after 15.04 : drivers - Ubuntu 14.04.5/16.04 and newer on AMD graphics - Ask Ubuntu .
From a link from inside the above mentioned link: Why AMD GPU Users May Want to Avoid Ubuntu 16.04 LTS .
This is, I believe, in regards to AMDGPU -Ubuntu : https://linuxconfig.org/how-to-install-the-latest-amd-radeon-drivers-on-ubuntu-18-04-bionic-beaver-l...
Article from the first Link explains the options you have if you have Ubuntu 16.04 installed:
OPTIONS
So maybe you took the plunge, hoping you'd have the card that would get AMDGPU, but weren't so lucky. Maybe you installed or upgraded without knowing the situation with AMD. Maybe you got AMDGPU and it just isn't enough. Whatever the reason you're on 16.04 with AMD graphics, there are a few options for you.
1. The first, and most obvious, is to just to downgrade to 14.04.
- It's still supported until 2019, so you have 2-3 more years to use it. Who knows? By that time, AMD may have decided to completely change its business model and actually provide good support.
- You get to use
fglrx and get the performance you want/need. - Please Note: 14.04.5 brought with it Xorg 1.18, which is what causes the problem in 16.04 to begin with. Luckily, it is completely possible to downgrade Xorg to 1.16 (on 14.04), so you can still use
fglrx. Read here.
Maybe 14.04 is too old for you, though. Maybe it doesn't have compatibility for that new application you use so much. Maybe you don't want to go through the trouble of backing up data and reinstalling. Well, there is another option.
2. Try out Oibaf's drivers.
- They work for AMD, NVIDIA and Intel, so you can even try them out if you dislike NVIDIA's proprietary drivers or are hoping for more performance from your Intel card.
- They support newer OpenGL and OpenCL versions, so stuff that depends on those will work.
- They claim to be optimized, so you could see an real boost in performance.
Oibaf's driver seems like a great replacement to fglrx, and it probably is. However, if you have a really recent AMD card, you may want to try out AMD's own offering.
3. AMDGPU-PRO
- It's proprietary and maintained by AMD, so it should provide the same performance as
fglrxdid. - It actually works on 14.04 too, so you can try it if you're still on that.
- UPDATE: 16.60 was released, which adds support for quite a few older (3-4 years old) cards. Link updated.
Unfortunately, AMDGPU-PRO is not a true replacement for fglrx. While it does provide support for 16.04, it's only compatible 20 models. That's not very much.If you don't care about performance, or you already have what you need, then don't bother with all the proprietary stuff, downgrading or weird installations.
4. Just stick with the open source drivers.
- No hassle to install, since they're already running.
- They provide you everything you need if you don't do anything special.
Just be aware that these won't generally work for games, especially high end ones.
5. Downgrade Xorg
- This will not work on 16.04.
It may work, it may break your system until you reinstall the correct version. However, if it does work, then you have fglrx back.
Read the answer here.
Options are far from limited on 16.04, but some of them may not be the best. I recommend trying Oibaf's driver before doing anything else, and only downgrading if you really can't stand the performance and can't use AMDGPU-PRO.
This is a comment made by a User concerning the above article:
Depending on your exact graphics hardware, Ubuntu 16.04 and later will use either the open-source AMDGPU driver or the open-source Radeon driver, both of which are included in the default Ubuntu 16.04+ installation. The amdgpu driver, pre-installed in 16.04+, is used for AMD's newest graphics cards. The radeon driver, also pre-installed in 16.04+, is used for older AMD graphics cards that the amdgpu driver doesn't support.
In order to show all the drivers that are available to be installed from the default Ubuntu repositories and are compatible with your hardware, open the terminal and type:
ubuntu-drivers devices
Wait at least one minute for the command to scan your computer and generate the list of drivers. The output of this command will be a list of the package names and short descriptions of the available drivers. In addition to showing a list of the available open source drivers, the above command will often also identify recommended proprietary driver(s) for your system if there are any available.
ubuntu-drivers devices will not show graphics drivers that are not available from the official Ubuntu repositories, such as the AMDGPU-Pro graphics driver for Linux which is available from the official AMD website. If you have installed a proprietary graphics driver from somewhere else than the default Ubuntu repositories, ubuntu-drivers devices will confusingly sometimes show it as the recommended driver even if it is not working properly.
