diff --git a/build.rs b/build.rs
index 201a331..c3093ce 100644
--- a/build.rs
+++ b/build.rs
@@ -204,7 +204,7 @@ fn main() {
         .allowlist_function("rdp_check_callback")
         .allowlist_function("rdp_check_framebuffers")
         .allowlist_function("rdp_state_size")
-        .allowlist_function("rdp_idle")
+        .allowlist_function("rdp_hard_sync")
         .allowlist_function("rdp_save_state")
         .allowlist_function("rdp_load_state")
         .allowlist_function("rdp_set_fps")
diff --git a/parallel-rdp/interface.cpp b/parallel-rdp/interface.cpp
index 39c6a7f..de79721 100644
--- a/parallel-rdp/interface.cpp
+++ b/parallel-rdp/interface.cpp
@@ -702,8 +702,8 @@ void rdp_check_framebuffers(uint32_t address, uint32_t length) {
 
 size_t rdp_state_size() { return sizeof(RDP_DEVICE); }
 
-void rdp_idle() {
-  processor->idle();
+void rdp_hard_sync() {
+  processor->wait_for_timeline(processor->signal_timeline());
   rdram_dirty.assign(gfx_info.RDRAM_SIZE >> 3, false);
   sync_signal = 0;
 }
diff --git a/parallel-rdp/interface.hpp b/parallel-rdp/interface.hpp
index 310bd7c..b9b006a 100644
--- a/parallel-rdp/interface.hpp
+++ b/parallel-rdp/interface.hpp
@@ -61,7 +61,7 @@ uint64_t rdp_process_commands();
 void rdp_onscreen_message(const char *message, MESSAGE_LENGTH milliseconds);
 void rdp_check_framebuffers(uint32_t address, uint32_t length);
 size_t rdp_state_size();
-void rdp_idle();
+void rdp_hard_sync();
 void rdp_save_state(uint8_t *state);
 void rdp_load_state(GFX_INFO _gfx_info, const uint8_t *state);
 void rdp_set_fps(uint32_t fps, uint32_t vis);
diff --git a/src/savestates.rs b/src/savestates.rs
index 800442b..c483135 100644
--- a/src/savestates.rs
+++ b/src/savestates.rs
@@ -113,7 +113,7 @@ pub fn process_savestates(device: &mut device::Device) {
 fn create_savestate(device: &mut device::Device, rewind: bool) {
     if !rewind {
         // skipped on rewind as a speed hack
-        ui::video::idle(); // to flush the RDP so the RDRAM is updated
+        ui::video::hard_sync(); // to flush the RDP so the RDRAM is updated
     }
     let mut rdp_state: Vec<u8> = vec![0; ui::video::state_size()];
     ui::video::save_state(rdp_state.as_mut_ptr());
@@ -232,7 +232,7 @@ fn load_savestate(device: &mut device::Device, rewind: bool) {
     if let Some(mut state) = state_data
         && device.rdram.size == state.device.rdram.size
     {
-        ui::video::idle(); // to flush the RDP so it doesn't overwrite the RDRAM
+        ui::video::hard_sync(); // to flush the RDP so it doesn't overwrite the RDRAM
 
         device.savestate.last_rewind_saved = state.device.vi.elapsed_time;
 
diff --git a/src/ui/video.rs b/src/ui/video.rs
index 62d1fb1..e7bed84 100644
--- a/src/ui/video.rs
+++ b/src/ui/video.rs
@@ -165,8 +165,8 @@ pub fn save_state(rdp_state: *mut u8) {
     unsafe { rdp_save_state(rdp_state) }
 }
 
-pub fn idle() {
-    unsafe { rdp_idle() }
+pub fn hard_sync() {
+    unsafe { rdp_hard_sync() }
 }
 
 pub fn load_state(device: &mut device::Device, rdp_state: *const u8) {