I requested the aforesaid info from toshiba and they have provided the following info..
The screen brightness control in accordance with the battery power by BIOS can be cancelled by executing the following function. Application existence setting of power save utility: AH = 44h AL = FFh BX = 0025h CX = 0002h (power save utility) DX = 0001h INT 15h With this change, the following BIOS functions will be restricted. * ClockRun(GatedClock)will be disabled. * System Auto Off will be disabled. * HDD Auto Off will be disabled. * Display Auto Off will be disabled. * Throttle Control by the amount of battery change will be disabled. * Cooling Method will not be switchable. * C3 Control will be disabled. i.e. every power-saving control in BIOS will be prohibited.a This might cause some problems in the state of power-saving but this will not cause any problem in PC operation. -- Fn Keys do not work on Toshiba a105-s4334 https://launchpad.net/bugs/81401 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
