Hello!
I need some information from my Acer Aspire E17 E5-773G-52PB notebook. Sorry so far I couldn't found from this notebook a full and correct specification nowhere anything. This machine has two video card, sorry with Nvidia optimus technology.
Intel HD Graphics 520
NVIDIA GM108M [GeForce 940M]
As far as I know, the Optimus systems do not have discrete (dedicated) Nvidia graphics, just an Nvidia GPU that uses the video memory of the Intel GPU. So I can use the Intel GPU alone for power savings, or Intel + Nvidia GPU together for the faster rendering if the software supports it, but not Nvidia alone. But I'm not sure in this! For me the power saving is not important, I would like to use the two card together or the NVIDIA card alone.
First I would like to know, that in this notebook are the two card GPU as far as I know ?
Second, I cannot switch off either GPU off in the laptop's BIOS, therefore I'm meaning on a BIOS update (maybe in an updated BIOS I will can switch off either GPU). But I need for the legacy BIOS option also in the future (I'm using some live and other not windows distros).
Can somebody say me, that If I'm updating the BIOS of this notebook than the legacy BIOS option will stay and that I will able to switch off either GPU with the new updated BIOS? This is an almost new machine with the original BIOS.
Maybe if somebody can offer me an other solution to switch off either GPU please write it down.
Now I can du it with a script:
% fetch https://people.freebsd.org/~xmj/turn_off_gpu.sh
% make -C /usr/ports/sysutils/acpi_call install clean
% vim turn_off_gpu.sh # read it before executing!
% sh turn_off_gpu.sh # as root user
I can Thank's any help!