I'm sorry my English is so poor. lspci | grep VGA 07:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X] glxinfo | grep OpenGL OpenGL vendor string: VMware, Inc. OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits) OpenGL version string: 2.1 Mesa 18.0.0 OpenGL shading language version string: 1.30 OpenGL extensions: OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.0.0 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16 OpenGL ES profile extensions: When I use fedora 27 it works very well, I use the following method to upgrade to fedora 28: dnf upgrade --refresh dnf system-upgrade download --releasever=28 --allowerasing dnf system-upgrade reboot
This is possibly related to bug #1564210.
My totem also fails with Clutter error including "Missing Cogl context".
I switch to Xorg, everything looks well.
*** This bug has been marked as a duplicate of bug 1564210 ***