Description of problem: selinux is in permissive mode # LIBGL_DEBUG=verbose DISPLAY=:0 glxgears libGL: XF86DRIGetClientDriverName: 1.5.1 i915 (screen 0) libGL: OpenDriver: trying /usr/X11R6/lib/modules/dri/i915_dri.so drmOpenByBusid: Searching for BusID pci:0000:00:02.0 drmOpenDevice: node name is /dev/dri/card0 drmOpenDevice: open result is 4, (OK) drmOpenByBusid: drmOpenMinor returns 4 drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0 ERROR: line 114, Function intelInitDriver, File intel_screen.c libGL error: InitDriver failed libGL error: reverting to (slow) indirect rendering Version-Release number of selected component (if applicable): mesa-libGL-6.5-5 and reproduced with 6.5-19.fc6 How reproducible: 100%
libGL: OpenDriver: trying /usr/X11R6/lib/modules/dri/i915_dri.so ^^^^^^^^^^^^^^ You appear to either have the wrong libGL installed from an older release of X. The libGL included in Mesa in Fedora Core 5 and all later builds loads the DRI drivers from %{_libdir}/dri directly, and does not load them from /usr/X11R6. The following should help you to find all libGL's installed on your system: find / -name "libGL.*" Uninstall or delete all of them, and reinstall the official Red Hat mesa-libGL package from rawhide. Once you have the correct libGL installed, it will try to load the drivers from /usr/lib/dri
Updating summary, this apparently has nothing to do with either graphical login or compositing.
Unable to repro with FC6t3 or later. Reporter, after checking the instructions from comment #2, please reopen if this is still an issue for you.