https://bugs.freedesktop.org/show_bug.cgi?id=88364 --- Comment #1 from Liss --- Also, sometimes Xorg doesn't hang, but than, if I try to run something again I see that it runs though llvmpipe. LIBGL_DEBUG=verbose DRI_PRIME=1 glxgears -info libGL: screen 0 does not appear to be DRI3 capable libGL error: failed to open drm device: Invalid argument libGL error: failed to load driver: radeonsi libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/swrast_dri.so libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so libGL: Can't open configuration file /home/lissamour/.drirc: No such file or directory. libGL: Can't open configuration file /home/lissamour/.drirc: No such file or directory. GL_RENDERER = Gallium 0.4 on llvmpipe (LLVM 3.5, 128 bits) GL_VERSION = 3.0 Mesa 10.5.0-devel (git-bed6f20 2015-01-13 utopic-oibaf-ppa) GL_VENDOR = VMware, Inc. -- You are receiving this mail because: You are the assignee for the bug.