I am using the 'bbswitch' module to disable the nvidia card
and save power on a laptop with optimus.
I removed nouveau permanently by blacklisting and then running dracut.
I compiled bbswitch with 'dkms' and then added the following:
#!/bin/sh
if [ ! -c /proc/acpi/bbswitch ] ; then
exec /sbin/modprobe bbswitch load_state=0 >/dev/null 2>&1
fi
to /etc/sysconfig/modules.
This works perfectly if the laptop is started up after powering off
('power off' from the menu or 'shutdown -h now')
However when I 'restart' (from the menu or 'shutdown -r now') this
does not work: 'bbswitch' can't find the discrete VGA device!
And consequently it is not loaded.
Can somebody explain what is happening.
For 'bbswitch' info see: https://github.com/Bumblebee-Project/bbswitch
AV
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