diff options
Diffstat (limited to 'bin')
| -rwxr-xr-x | bin/graphics_env | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/bin/graphics_env b/bin/graphics_env new file mode 100755 index 0000000..719865d --- /dev/null +++ b/bin/graphics_env @@ -0,0 +1,31 @@ +#!/bin/bash +# This script checks if the submitted VIDEO resource is from AMD and if it is +# a discrete GPU (graphics_card_resource orders GPUs by index: 1 is the +# integrated one, 2 is the discrete one). +# +# This script has to be sourced in order to set an environment variable that +# is used by the open source AMD driver to trigger the use of discrete GPU. + +VENDOR_SLUG=$1 +INDEX=$2 +UBUNTU_CODENAME=`lsb_release -c | awk {'print $2'}` + +# We only want to set the DRI_PRIME env variable on Xenial (16.04) systems +# running more than 1 GPU. +if [[ $UBUNTU_CODENAME == "xenial" ]]; then + NB_GPU=`cat /var/log/gpu-manager.log | grep "How many cards?" | awk {'print $NF'}` + if [ $NB_GPU -gt 1 ]; then + if [[ $VENDOR_SLUG == *AMD* ]]; then + if [ $INDEX -gt 1 ]; then + # See https://wiki.archlinux.org/index.php/PRIME + echo "Setting up PRIME GPU offloading for AMD discrete GPU" + PROVIDER_ID=`xrandr --listproviders | grep "Sink Output" | awk {'print $4'} | tail -1` + SINK_ID=`xrandr --listproviders | grep "Source Output" | awk {'print $4'} | tail -1` + xrandr --setprovideroffloadsink ${PROVIDER_ID} ${SINK_ID} + export DRI_PRIME=1 + else + export DRI_PRIME= + fi + fi + fi +fi |