--- a/displaylink-installer.sh	2020-05-05 12:31:00.000000000 +0200
+++ b/displaylink-installer.sh	2020-09-25 14:35:01.000000000 +0200
@@ -128,7 +128,7 @@
 
 add_systemd_service()
 {
-  cat > /lib/systemd/system/displaylink-driver.service <<EOF
+  cat > /usr/lib/systemd/system/displaylink-driver.service <<EOF
 [Unit]
 Description=DisplayLink Driver Service
 After=display-manager.service
@@ -143,7 +143,7 @@
 
 EOF
 
-  chmod 0644 /lib/systemd/system/displaylink-driver.service
+  chmod 0644 /usr/lib/systemd/system/displaylink-driver.service
 }
 
 add_runit_service()
@@ -181,13 +181,13 @@
 remove_systemd_service()
 {
   driver_name="displaylink-driver"
-  if grep -sqi displaylink /lib/systemd/system/dlm.service; then
+  if grep -sqi displaylink /usr/lib/systemd/system/dlm.service; then
     driver_name="dlm"
   fi
   echo "Stopping ${driver_name} systemd service"
   systemctl stop ${driver_name}.service
   systemctl disable ${driver_name}.service
-  rm -f /lib/systemd/system/${driver_name}.service
+  rm -f /usr/lib/systemd/system/${driver_name}.service
 }
 
 remove_runit_service()
@@ -316,7 +316,7 @@
     ln -sf $COREDIR/suspend.sh /etc/pm/sleep.d/displaylink.sh
   elif [ "$1" = "systemd" ]
   then
-    ln -sf $COREDIR/suspend.sh /lib/systemd/system-sleep/displaylink.sh
+    ln -sf $COREDIR/suspend.sh /usr/lib/systemd/system-sleep/displaylink.sh
     if [ -d "/etc/pm/sleep.d" ];
     then
       ln -sf $COREDIR/suspend.sh /etc/pm/sleep.d/10_displaylink
@@ -340,7 +340,7 @@
 {
   rm -f /etc/pm/sleep.d/displaylink.sh
   rm -f /etc/pm/sleep.d/10_displaylink
-  rm -f /lib/systemd/system-sleep/displaylink.sh
+  rm -f /usr/lib/systemd/system-sleep/displaylink.sh
   rm -f /etc/zzz.d/suspend/displaylink.sh /etc/zzz.d/resume/displaylink.sh
 }
 
@@ -528,13 +528,13 @@
 check_libdrm()
 {
   hash apt 2>/dev/null || return
-  apt list -qq --installed libdrm-dev 2>/dev/null | grep -q libdrm-dev
+  apt list -i libdrm-devel 2>/dev/null | grep -q libdrm-devel
 }
 
 apt_ask_for_dependencies()
 {
-  apt --simulate install dkms libdrm-dev 2>&1 |  grep  "^E: " > /dev/null && return 1
-  apt --simulate install dkms libdrm-dev | grep -v '^Inst\|^Conf'
+  apt --simulate install dkms libdrm-devel 2>&1 |  grep  "^E: " > /dev/null && return 1
+  apt --simulate install dkms libdrm-devel | grep -v '^Inst\|^Conf'
 }
 
 apt_ask_for_update()
@@ -549,7 +549,7 @@
 {
   hash dkms 2>/dev/null
   local install_dkms=$?
-  apt list -qq --installed libdrm-dev 2>/dev/null | grep -q libdrm-dev
+  apt list -i libdrm-devel 2>/dev/null | grep -q libdrm-devel
   local install_libdrm=$?
 
   if [ "$install_dkms" != 0 ] || [ "$install_libdrm" != 0 ]; then
@@ -558,7 +558,7 @@
     read -p 'Do you want to continue? [Y/n] ' CHOICE
     [[ "${CHOICE:-Y}" == "${CHOICE#[Yy]}" ]] && exit 0
 
-    apt install -y dkms libdrm-dev || check_requirements
+    apt install -y dkms libdrm-devel || check_requirements
   fi
 }