After the last updates, when I connect the laptop for the first time, sometimes the system hangs or the volume icon does not appear. To try to restart or quit the session, it takes a good time to exit. After this, to reset the system, it becomes normal. I am using Sabayon 8 KDE.
Editing: Now each reboot of the system, the icon of sound and some services such as the indexing of files do not work more. I saw also that in system configurations to enter in startup and shutdown, the following message appears: "Some archives of GRUB configuration are missing or are invalid. Please, select an action: 1) Recover GRUB from a previous installation; 2) manually browse to locate the setup files of GRUB". Whether you choose the two options, choose the hd for installation, clicking OK the system does not return anything.