I have just discovered an interesting thing:
If I set in /etc/default/grub acpi_osi=''
the volume keys doesn't work anymore, but fn+f8 works perfectly (monitor config changes shifts from dual monitor extended, cloned monitor and single laptop monitor) while fn+f7 works in both mode.
In this moment I unset that option, is the better solution at the moment.
I have just discovered an interesting thing:
If I set in /etc/default/grub acpi_osi=''
the volume keys doesn't work anymore, but fn+f8 works perfectly (monitor config changes shifts from dual monitor extended, cloned monitor and single laptop monitor) while fn+f7 works in both mode.
In this moment I unset that option, is the better solution at the moment.