BTW:
uname -a
Linux xxxxxxxxxxxxxxxxxx.dsl.cantv.net 4.14.16-300.fc27.x86_64 #1 SMP Wed Jan 31 19:24:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux



On Tue, Feb 13, 2018 at 9:57 AM, Pietro Pesci Feltri <ppesci@gmail.com> wrote:
OpenGL renderer string: AMD BONAIRE (DRM 2.50.0 / 4.14.16-300.fc27.x86_64, LLVM 5.0.0)

I changed the file /etc/default/gub to:

cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rhgb quiet radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1"
GRUB_DISABLE_RECOVERY="true"

and ran:
sudo grub2-mkconfig
reboot

Same result.

On Tue, Feb 13, 2018 at 5:01 AM, <bugzilla-daemon@freedesktop.org> wrote:
Bas Nieuwenhuizen changed bug 105068
What Removed Added
Status NEW NEEDINFO

Comment # 1 on bug 105068 from Bas Nieuwenhuizen
What does 

glxinfo | grep "OpenGL renderer string"

say? If DRM version is < 3.0.0, you should make sure your kernel is at least
4.13 and then add 

radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1
amdgpu.cik_support=1

to the kernel commandline.


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