1 files changed, 15 insertions, 0 deletions
diff --git a/src/Compositor.cpp b/src/Compositor.cpp
index 53f79012..58292c8a 100644
--- a/src/Compositor.cpp
+++ b/src/Compositor.cpp
@@ -73,6 +73,7 @@
 #include <sys/resource.h>
 #include <malloc.h>
 #include <unistd.h>
+#include <xf86drm.h>
 
 using namespace Hyprutils::String;
 using namespace Aquamarine;
@@ -167,6 +168,10 @@ void CCompositor::restoreNofile() {
         Debug::log(ERR, "Failed restoring NOFILE limits");
 }
 
+bool CCompositor::supportsDrmSyncobjTimeline() const {
+    return m_bDrmSyncobjTimelineSupported;
+}
+
 void CCompositor::setMallocThreshold() {
 #ifdef M_TRIM_THRESHOLD
     // The default is 128 pages,
@@ -354,6 +359,16 @@ void CCompositor::initServer(std::string socketName, int socketFd) {
     m_drmFD = m_aqBackend->drmFD();
     Debug::log(LOG, "Running on DRMFD: {}", m_drmFD);
 
+    if (m_drmFD >= 0) {
+        uint64_t cap                   = 0;
+        int      ret                   = drmGetCap(m_drmFD, DRM_CAP_SYNCOBJ_TIMELINE, &cap);
+        m_bDrmSyncobjTimelineSupported = (ret == 0 && cap != 0);
+        Debug::log(LOG, "DRM syncobj timeline support: {}", m_bDrmSyncobjTimelineSupported ? "yes" : "no");
+    } else {
+        m_bDrmSyncobjTimelineSupported = false;
+        Debug::log(LOG, "DRM syncobj timeline support: no (no DRM FD)");
+    }
+
     if (!socketName.empty() && socketFd != -1) {
         fcntl(socketFd, F_SETFD, FD_CLOEXEC);
         const auto RETVAL = wl_display_add_socket_fd(m_wlDisplay, socketFd);