diff --git a/games/idacio/di-dev.c b/games/idacio/di-dev.c
index a7758df..18fa6dc 100644
--- a/games/idacio/di-dev.c
+++ b/games/idacio/di-dev.c
@@ -14,6 +14,13 @@ static IDirectInputDevice8W* idac_di_dev = NULL;
 
 static void update_or_create_effect(LPDIRECTINPUTEFFECT* effect_ptr, REFGUID guid, DIEFFECT* fx);
 
+static bool idac_di_dev_state_lost(HRESULT hr)
+{
+    return hr == DIERR_INPUTLOST
+        || hr == DIERR_NOTACQUIRED
+        || hr == DIERR_UNPLUGGED;
+}
+
 /* Effect handles */
 static IDirectInputEffect* idac_di_fx_constant = NULL;
 static IDirectInputEffect* idac_di_fx_rumble = NULL;
@@ -115,6 +122,29 @@ HRESULT idac_di_dev_poll(IDirectInputDevice8W* dev, HWND wnd,
     }
 
     hr = IDirectInputDevice8_GetDeviceState(dev, sizeof(out->st), &out->st);
+
+    if (FAILED(hr) && idac_di_dev_state_lost(hr)) {
+        HRESULT acquire_hr;
+
+        dprintf("DirectInput: Device lost (%08x), attempting to reacquire\n",
+                (int) hr);
+
+        acquire_hr = IDirectInputDevice8_Acquire(dev);
+
+        if (SUCCEEDED(acquire_hr)) {
+            hr = IDirectInputDevice8_GetDeviceState(
+                    dev,
+                    sizeof(out->st),
+                    &out->st);
+
+            if (SUCCEEDED(hr)) {
+                dprintf("DirectInput: Device reacquired\n");
+            }
+        } else {
+            dprintf("DirectInput: Acquire failed: %08x\n", (int) acquire_hr);
+        }
+    }
+
     if (FAILED(hr)) {
         dprintf("DirectInput: GetDeviceState error: %08x\n", (int)hr);
     }
diff --git a/games/idacio/dllmain.c b/games/idacio/dllmain.c
index fe8246e..03eceb2 100644
--- a/games/idacio/dllmain.c
+++ b/games/idacio/dllmain.c
@@ -104,7 +104,7 @@ void idac_io_get_shifter(uint8_t *gear)
 
 void idac_io_get_analogs(struct idac_io_analog_state *out)
 {
-    struct idac_io_analog_state tmp;
+    struct idac_io_analog_state tmp = { 0 };
 
     assert(out != NULL);
     assert(idac_io_backend != NULL);
diff --git a/games/idzio/di-dev.c b/games/idzio/di-dev.c
index 84fc364..a5ca4ac 100644
--- a/games/idzio/di-dev.c
+++ b/games/idzio/di-dev.c
@@ -13,6 +13,13 @@ static IDirectInputDevice8W* idz_di_dev = NULL;
 
 static void update_or_create_effect(LPDIRECTINPUTEFFECT* effect_ptr, REFGUID guid, DIEFFECT* fx);
 
+static bool idz_di_dev_state_lost(HRESULT hr)
+{
+    return hr == DIERR_INPUTLOST
+        || hr == DIERR_NOTACQUIRED
+        || hr == DIERR_UNPLUGGED;
+}
+
 /* Individual DI Effects */
 static IDirectInputEffect* idz_di_fx_constant = NULL;
 static IDirectInputEffect* idz_di_fx_rumble = NULL;
@@ -122,6 +129,28 @@ HRESULT idz_di_dev_poll(IDirectInputDevice8W* dev, HWND wnd,
 
     hr = IDirectInputDevice8_GetDeviceState(dev, sizeof(out->st), &out->st);
 
+    if (FAILED(hr) && idz_di_dev_state_lost(hr)) {
+        HRESULT acquire_hr;
+
+        dprintf("DirectInput: Device lost (%08x), attempting to reacquire\n",
+                (int) hr);
+
+        acquire_hr = IDirectInputDevice8_Acquire(dev);
+
+        if (SUCCEEDED(acquire_hr)) {
+            hr = IDirectInputDevice8_GetDeviceState(
+                    dev,
+                    sizeof(out->st),
+                    &out->st);
+
+            if (SUCCEEDED(hr)) {
+                dprintf("DirectInput: Device reacquired\n");
+            }
+        } else {
+            dprintf("DirectInput: Acquire failed: %08x\n", (int) acquire_hr);
+        }
+    }
+
     if (FAILED(hr)) {
         dprintf("DirectInput: GetDeviceState error: %08x\n", (int)hr);
     }
diff --git a/games/idzio/dllmain.c b/games/idzio/dllmain.c
index 322d194..e3740fa 100644
--- a/games/idzio/dllmain.c
+++ b/games/idzio/dllmain.c
@@ -88,7 +88,7 @@ void idz_io_jvs_read_shifter(uint8_t *gear)
 
 void idz_io_jvs_read_analogs(struct idz_io_analog_state *out)
 {
-    struct idz_io_analog_state tmp;
+    struct idz_io_analog_state tmp = { 0 };
 
     assert(out != NULL);
     assert(idz_io_backend != NULL);
diff --git a/games/swdcio/di-dev.c b/games/swdcio/di-dev.c
index 2343347..0b59f6d 100644
--- a/games/swdcio/di-dev.c
+++ b/games/swdcio/di-dev.c
@@ -14,6 +14,13 @@ static IDirectInputDevice8W* swdc_di_dev = NULL;
 static void update_or_create_effect(LPDIRECTINPUTEFFECT* effect_ptr,
                                     REFGUID guid, DIEFFECT* fx);
 
+static bool swdc_di_dev_state_lost(HRESULT hr)
+{
+    return hr == DIERR_INPUTLOST
+        || hr == DIERR_NOTACQUIRED
+        || hr == DIERR_UNPLUGGED;
+}
+
 /* Individual DI Effects */
 static IDirectInputEffect* swdc_di_fx_constant = NULL;
 static IDirectInputEffect* swdc_di_fx_rumble = NULL;
@@ -116,6 +123,29 @@ HRESULT swdc_di_dev_poll(IDirectInputDevice8W* dev, HWND wnd,
     }
 
     hr = IDirectInputDevice8_GetDeviceState(dev, sizeof(out->st), &out->st);
+
+    if (FAILED(hr) && swdc_di_dev_state_lost(hr)) {
+        HRESULT acquire_hr;
+
+        dprintf("DirectInput: Device lost (%08x), attempting to reacquire\n",
+                (int) hr);
+
+        acquire_hr = IDirectInputDevice8_Acquire(dev);
+
+        if (SUCCEEDED(acquire_hr)) {
+            hr = IDirectInputDevice8_GetDeviceState(
+                    dev,
+                    sizeof(out->st),
+                    &out->st);
+
+            if (SUCCEEDED(hr)) {
+                dprintf("DirectInput: Device reacquired\n");
+            }
+        } else {
+            dprintf("DirectInput: Acquire failed: %08x\n", (int) acquire_hr);
+        }
+    }
+
     if (FAILED(hr)) {
         dprintf("DirectInput: GetDeviceState error: %08x\n", (int)hr);
     }
diff --git a/games/swdcio/dllmain.c b/games/swdcio/dllmain.c
index a35b8e8..5b9ad44 100644
--- a/games/swdcio/dllmain.c
+++ b/games/swdcio/dllmain.c
@@ -96,7 +96,7 @@ void swdc_io_get_gamebtns(uint16_t *gamebtn_out)
 
 void swdc_io_get_analogs(struct swdc_io_analog_state *out)
 {
-    struct swdc_io_analog_state tmp;
+    struct swdc_io_analog_state tmp = { 0 };
 
     assert(out != NULL);
     assert(swdc_io_backend != NULL);