On 31 October 2017 at 17:37, AV <volovics(a)ziggo.nl> wrote:
This concerns an Asus Zenbook with hybrid graphics (Intel/Nvidia).
1) There are 2 ways to deactivate the nouveau driver:
by adding 'modprobe.nouveau=0' to the kernel cmd line OR
by adding 'modprobe.blacklist=nouveau rd.blacklist=nouveau'.
Which is to be preferred?
2) I do the above because there is as yet no Nvidia driver that
gives a hybrid solution like under Windows and the Intel driver
is more than enough for my needs.
However when using a solution as described in 1) the Nvidia chip
will still drain power. Is there anyway to deactivate the chip?
(short of removing it from the motherboard if possible).
If you cannot disable the NV chip in the BIOS/firmware then you have a
couple of options ...
By default PRIME *should* be working ... are you certain the NV chip
is powered and drawing power?
Check /sys/kernel/debug/vgaswitcheroo/switch (just cat it) and see if
the chip is already marked OFF (this requires nouveau to be loaded as
a driver IIRC so remove your blacklist).
If that already shows it off then you don't need to do anything else
as Intel will be default.
Alternatively if that's not behaving as expected for you follow the
instructions for the bumblebee implementation: