bbswitch hack to turn off dGPU before suspend instead (for Clevo laptops where the dGPU remains on and overheating during suspend)

bbswitch.diff

--- bbswitch-0.8.orig/bbswitch.c
+++ bbswitch-0.8/bbswitch.c
@@ -238,10 +238,15 @@ static int is_card_disabled(void) {
     return !~cfg_word;
 }
 
+static void bbswitch_off_force(void);
 static void bbswitch_off(void) {
     if (is_card_disabled())
         return;
 
+    bbswitch_off_force();
+}
+
+static void bbswitch_off_force(void) {
     // to prevent the system from possibly locking up, don't disable the device
     // if it's still in use by a driver (i.e. nouveau or nvidia)
     if (dis_dev->driver) {
@@ -280,10 +285,15 @@ static void bbswitch_off(void) {
         pr_warn("The discrete card could not be disabled by a _DSM call\n");
 }
 
+static void bbswitch_on_force(void);
 static void bbswitch_on(void) {
     if (!is_card_disabled())
         return;
 
+    bbswitch_on_force();
+}
+
+static void bbswitch_on_force(void) {
     pr_info("enabling discrete graphics\n");
 
     if (bbswitch_acpi_on())
@@ -351,8 +361,8 @@ static int bbswitch_pm_handler(struct no
         dis_before_suspend_disabled = is_card_disabled();
         // enable the device before suspend to avoid the PCI config space from
         // being saved incorrectly
-        if (dis_before_suspend_disabled)
-            bbswitch_on();
+        if (!dis_before_suspend_disabled)
+            bbswitch_off();
         dis_dev_put();
         break;
     case PM_POST_HIBERNATION:
@@ -360,11 +370,12 @@ static int bbswitch_pm_handler(struct no
     case PM_POST_RESTORE:
         // after suspend, the card is on, but if it was off before suspend,
         // disable it again
-        if (dis_before_suspend_disabled) {
-            dis_dev_get();
-            bbswitch_off();
-            dis_dev_put();
-        }
+        dis_dev_get();
+        pr_info("resumed\n");
+        bbswitch_off_force();
+        if (!dis_before_suspend_disabled)
+            bbswitch_on();
+        dis_dev_put();
         break;
     case PM_RESTORE_PREPARE:
         // deliberately don't do anything as it does not occur before suspend