Intel Graphic Driver Installation on Fedora 20

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Hi Everyone, very new to linux and Fedora... I have a Intel NUC computer, with intel hd 5000 integrated graphic, Fedora 20 and Gnome 3.12 (from COPR)

I tried to install intel open source driver following instructions found here: https://ask.fedoraproject.org/en/question/37594/install-intel-graphics-driver-in-fedora-20/

I wasn't able to install the graphic installer, I then added intellinuxgraphics.repo and run "yum distro-sync" as suggested in the post and I got this output

yum distro-sync

Loaded plugins: langpacks, priorities
103 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package mesa-dri-drivers.x86_64 0:10.0-11.41 will be a downgrade
--> Processing Dependency: libLLVM-3.3.so()(64bit) for package: mesa-dri-drivers-10.0-11.41.x86_64
---> Package mesa-dri-drivers.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-filesystem.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-filesystem.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libEGL.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-libEGL.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libGL.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-libGL.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libgbm.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-libgbm.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libglapi.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-libglapi.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libwayland-egl.x86_64 0:10.0-11.41 will be a downgrade
---> Package mesa-libwayland-egl.x86_64 0:10.1-6.20140305.fc20 will be erased
---> Package mesa-libxatracker.x86_64 0:10.0-11.41 will be a downgrade
--> Processing Dependency: libLLVM-3.3.so()(64bit) for package: mesa-libxatracker-10.0-11.41.x86_64
---> Package mesa-libxatracker.x86_64 0:10.1-6.20140305.fc20 will be erased
--> Finished Dependency Resolution
Error: Package: mesa-dri-drivers-10.0-11.41.x86_64 (intellinuxgraphics)
           Requires: libLLVM-3.3.so()(64bit)
           Available: llvm-libs-3.3-0.10.rc3.fc20.x86_64 (fedora)
               libLLVM-3.3.so()(64bit)
           Installed: llvm-libs-3.4-6.fc20.x86_64 (@updates)
              ~libLLVM-3.4.so()(64bit)
Error: Package: mesa-libxatracker-10.0-11.41.x86_64 (intellinuxgraphics)
           Requires: libLLVM-3.3.so()(64bit)
           Available: llvm-libs-3.3-0.10.rc3.fc20.x86_64 (fedora)
               libLLVM-3.3.so()(64bit)
           Installed: llvm-libs-3.4-6.fc20.x86_64 (@updates)
              ~libLLVM-3.4.so()(64bit)
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

I then tried with this command:

dnf distro-sync

that seemed to work as it wrotes "Completed!".

Don't have a clue if driver was correctly installed, if those "downgrade" are a bad thing or not.

My main question is: how can I check if the intel graphic driver has been installed correctly and it's being used?

I surfed the internet, someone was suggesting to check /var/log/Xorg.0.log but that file is not present on my system. Any help will be appreciated. Thanks Nicola