diff --git a/client/gpu_amd.cpp b/client/gpu_amd.cpp
index 122310401f..60be4c91b9 100644
--- a/client/gpu_amd.cpp
+++ b/client/gpu_amd.cpp
@@ -160,7 +160,8 @@ void COPROC_ATI::get(
 
     void* callib = dlopen("libaticalrt.so", RTLD_NOW);
     if (!callib) {
-        warnings.push_back("No ATI library found");
+        sprintf(buf, "ATI: %s", dlerror());
+        warnings.push_back(buf);
         return;
     }
 
diff --git a/client/gpu_nvidia.cpp b/client/gpu_nvidia.cpp
index 82a2446906..32eda2b569 100644
--- a/client/gpu_nvidia.cpp
+++ b/client/gpu_nvidia.cpp
@@ -287,7 +287,8 @@ void* cudalib = NULL;
     cudalib = dlopen("libcuda.so", RTLD_NOW);
 #endif
     if (!cudalib) {
-        warnings.push_back("No NVIDIA library found");
+        sprintf(buf, "NVIDIA: %s", dlerror());
+        warnings.push_back(buf);
         return;
     }
     __cuDeviceGetCount = (int(*)(int*)) dlsym(cudalib, "cuDeviceGetCount");
diff --git a/client/gpu_opencl.cpp b/client/gpu_opencl.cpp
index a1a59703c2..07b9e42d1f 100644
--- a/client/gpu_opencl.cpp
+++ b/client/gpu_opencl.cpp
@@ -185,7 +185,8 @@ void COPROCS::get_opencl(
     }
 #endif
     if (!opencl_lib) {
-        warnings.push_back("No OpenCL library found");
+        sprintf(buf, "OpenCL: %s", dlerror());
+        warnings.push_back(buf);
         return;
     }
     __clGetPlatformIDs = (cl_int(*)(cl_uint, cl_platform_id*, cl_uint*)) dlsym( opencl_lib, "clGetPlatformIDs" );