Description of problem:
This happened when I try to test bumblebeed on Fedora 21 with the command:
optirun glxgears -info | grep "GL_VENDOR"
SELinux is preventing Xorg.bin from 'add_name' accesses on the directory .tX8-lock.

*****  Plugin catchall (100. confidence) suggests   **************************

If cree que de manera predeterminada, Xorg.bin debería permitir acceso add_name sobre  .tX8-lock directory.     
Then debería reportar esto como un error.
Puede generar un módulo de política local para permitir este acceso.
Do
permita el acceso momentáneamente executando:
# grep Xorg.bin /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:bumblebee_t:s0
Target Context                system_u:object_r:tmp_t:s0
Target Objects                .tX8-lock [ dir ]
Source                        Xorg.bin
Source Path                   Xorg.bin
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-103.fc21.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.17.7-300.fc21.x86_64 #1 SMP Wed
                              Dec 17 03:08:44 UTC 2014 x86_64 x86_64
Alert Count                   32
First Seen                    2014-12-22 23:32:42 CST
Last Seen                     2014-12-23 01:20:18 CST
Local ID                      3dc0b3f5-9d91-4b66-a87e-c27834c01168

Raw Audit Messages
type=AVC msg=audit(1419319218.971:986): avc:  denied  { add_name } for  pid=31008 comm="Xorg.bin" name=".tX8-lock" scontext=system_u:system_r:bumblebee_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=dir permissive=0


Hash: Xorg.bin,bumblebee_t,tmp_t,dir,add_name

Version-Release number of selected component:
selinux-policy-3.13.1-103.fc21.noarch

Additional info:
reporter:       libreport-2.3.0
hashmarkername: setroubleshoot
kernel:         3.17.7-300.fc21.x86_64
type:           libreport