Following the previous blog and some investigation, it turned out the kernel package from Mystro256 COPR repository based on agd5f kernel branch (one of AMD developers) resolves the blank screen issue. That could trigger a problem for users having a new AMD graphic hardware so perhaps a warning should be written on the release. Perhaps having one of contributors be part of kernel team bringing these improvement until those patches arrive to the mainline kernel for a better user experience.
Past the issue, the desktop experience with Radeon RX 560 was tremendously improved compared to the retired GTX 460 v2. Gnome on Wayland on Fedora runs smooth showing how far the open source amdgpu driver went through compared to previous years. That was also the opportunity to run a vulkan based smoke test demo on RADV, which is a counterpart of glxgears.
Overall the card is excellent once missing software are installed.
I bought a Sapphire PulseRadeon RX 560 4GB to replace the broken Nvidia GTX 460 v2 after a long years of service. It is then my first ever dedicated AMD based video-card for a desktop.
The boot sequence on Fedora 27 hit a problem: a plain blank screen suggesting the card is not yet supported. Looking at Phoronix website revealed one of possible requirement missed: LLVM 5.0 which is currently not available to Fedora repository save a failed built. I filed a bug report to address the issue. Hopefully that will land on time for the official release of Fedora 27.
The hybrid support has improved now that the dedicated graphic card AMD R5 M230 Jet Pro (aka Hainan) is functional with enabled amdgpu module for both Sea Island (CIK) and South Island (SI) videocards thanks to the hard work from AMD developers. The latter was important in order to fully support all GCN (Graphics Core Next) chipsets as possible to allow future run on open source version of Vulkan, RADV (short for Radeon Vulkan).
The power manager is functional and further optimization will be required in term on parity with Microsoft Windows version. According to Freedesktop Radeon list almost all features are implemented into the driver, hybrid graphic cards run fine, only OpenGL needs more work. As the desktop ecosystem in the freedesktop environment modernize to support Wayland protocole, a…