@Luciano: can you reproduce the problem and attach the following files please?
1) the dmesg ouput 2) /var/log/gpu-manager.log 3) /var/log/Xorg.0.log
@Luciano: can you reproduce the problem and attach the following files please?
1) the dmesg ouput gpu-manager. log
2) /var/log/
3) /var/log/Xorg.0.log