I have a problem about the motherboard i guess.
I cannot use some of hotkeys, also, any of external monitors and projections are not recognized by my ubuntu.
I couldnt fix that problem even i search google. Any suggestion or experience about such that problem ?
I tried acpi-supoort package but nothing fixed.
This is a laptop, I assume? What kind? Typically, you need kernel support to utilize the hotkeys, plus some software that runs as a daemon that intercepts the key-presses and acts upon them. I have used such software on my Lenovo X and T series laptops. I use Fedora and there is a package in the repos called tpb that provides this.
To get additional monitors to work, you need to modify the configuration file for the X server, typically found in /etc/X11/xorg.conf. I'm not sure about Ubuntu, but there may be a graphical tool to do that. You also need to go into the BIOS and make sure that any VGA-out ports are enabled (again, if a laptop).