Files
binary-repo/sys/apps/openrc/extras/disable-secondary-gpu.sh
T
2023-04-11 07:33:10 +00:00

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Bash

#!/bin/bash
if [[ ! -f /var/cache/disable-gpu ]] &>/dev/null; then
exit 0
fi
if grep "nomodeset" /proc/cmdline ; then
exit 0
fi
remove_pci(){
if [[ -d "/sys/bus/pci/devices/0000:$1/driver" ]] ; then
module=$(basename $(readlink /sys/bus/pci/devices/0000:$1/driver/module))
echo "Disabled: $module ($1)"
rmmod -f $module
fi
echo 1 > /sys/bus/pci/devices/0000:$1/remove
}
echo 1 > /sys/bus/pci/rescan
for dir in /sys/class/drm/card[0-9*] ; do
# 03 Display controller
# 02 3D controller
if grep "^0x0302" $dir/device/class ; then
pci="$(basename $(readlink $dir/device))"
echo "Found 3D controller: ${pci:5}"
remove_pci "${pci:5}"
fi
done
udevadm control --reload