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Switch NVIDIA/nouveau modules
#!/bin/sh
unbind_vtconsoles()
{
for ((i = 0; i < 16; i++))
do
if [ -d "/sys/class/vtconsole/vtcon$i" ]; then
if [ `cat /sys/class/vtconsole/vtcon$i/name | grep -c "frame buffer"` -eq 1 ]; then
while [ `cat /sys/class/vtconsole/vtcon$i/bind` -ne 0 ]; do
echo Unbinding vtcon$i
echo 0 > /sys/class/vtconsole/vtcon$i/bind
sleep 1
done
fi
fi
done
}
bind_vtconsoles()
{
for ((i = 0; i < 16; i++))
do
if [ -d "/sys/class/vtconsole/vtcon$i" ]; then
if [ `cat /sys/class/vtconsole/vtcon$i/name | grep -c "frame buffer"` -eq 1 ]; then
echo 0 > /sys/class/vtconsole/vtcon$i/bind
while [ `cat /sys/class/vtconsole/vtcon$i/bind` -ne 1 ]; do
echo Binding vtcon$i
if [ ! -e "/dev/dri" ]; then
vbetool vbestate restore < /usr/local/etc/vbestate
fi
echo 1 > /sys/class/vtconsole/vtcon$i/bind
sleep 1
done
fi
fi
done
}
wait_plymouth_quit()
{
while [ `ps ax | grep -c plymouth` -gt 1 ]; do
sleep 1
done
}
_rmmod()
{
output=`rmmod $1 2>&1`
status="$?"
if [ `echo $output | grep -c "not currently loaded"` -eq 1 ]; then
true
else
[[ -n $output ]] && >&2 echo $output
`exit $status`
fi
}
load_nouveau()
{
modprobe nouveau
}
unload_nouveau()
{
_rmmod nouveau
_rmmod ttm
_rmmod drm_kms_helper
}
load_nvidia()
{
modprobe nvidia
}
unload_nvidia()
{
_rmmod nvidia
}
load_fb()
{
modprobe efifb
}
unload_fb()
{
_rmmod efifb
}
switch_nvidia()
{
echo "blacklist nvidia" > /usr/lib/modprobe.d/nvidia.conf
echo "blacklist nvidia_uvm" >> /usr/lib/modprobe.d/nvidia.conf
wait_plymouth_quit
unbind_vtconsoles
unload_nouveau
if [ "$?" -ne 0 ]; then
load_nouveau
bind_vtconsoles
exit 1
fi
echo "blacklist nouveau" > /usr/lib/modprobe.d/nvidia.conf
load_fb
bind_vtconsoles
}
switch_nouveau()
{
echo "blacklist nvidia" > /usr/lib/modprobe.d/nvidia.conf
echo "blacklist nvidia_uvm" >> /usr/lib/modprobe.d/nvidia.conf
unload_nvidia
}
if [ "$1" == "nvidia" ]; then
switch_nvidia
elif [ "$1" == "nouveau" ]; then
switch_nouveau
else
echo "Module not specified!"
echo "You need to specify either nvidia or nouveau"
exit 1
fi
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