diff --git a/lact-daemon/src/server/gpu_controller/amd.rs b/lact-daemon/src/server/gpu_controller/amd.rs
index c5bf27b..cc28b27 100644
--- a/lact-daemon/src/server/gpu_controller/amd.rs
+++ b/lact-daemon/src/server/gpu_controller/amd.rs
@@ -55,6 +55,7 @@ pub struct AmdGpuController {
 }
 
 impl AmdGpuController {
+    #[allow(unused_variables)]
     pub fn new_from_path(
         common: CommonControllerInfo,
         libdrm_amdgpu: Option<&LibDrmAmdgpu>,
diff --git a/lact-daemon/src/server/gpu_controller/mod.rs b/lact-daemon/src/server/gpu_controller/mod.rs
index 60822e2..55225ab 100644
--- a/lact-daemon/src/server/gpu_controller/mod.rs
+++ b/lact-daemon/src/server/gpu_controller/mod.rs
@@ -110,17 +110,17 @@ pub(crate) fn init_controller(
         })
         .unwrap_or_default();
 
-    let vendor_entry = pci_db.vendors.get_key_value(vendor_id);
+    let vendor = pci_db.vendors.get(&vendor_id.to_ascii_lowercase());
 
     let pci_info = GpuPciInfo {
         device_pci_info: PciInfo {
             vendor_id: vendor_id.to_owned(),
-            vendor: vendor_entry.map(|(vendor_name, _)| vendor_name.clone()),
+            vendor: vendor.map(|vendor| vendor.name.clone()),
             model_id: device_id.to_owned(),
-            model: vendor_entry.and_then(|(_, vendor)| {
+            model: vendor.and_then(|vendor| {
                 vendor
                     .devices
-                    .get(device_id)
+                    .get(&device_id.to_ascii_lowercase())
                     .map(|device| device.name.clone())
             }),
         },
diff --git a/lact-daemon/src/server/handler.rs b/lact-daemon/src/server/handler.rs
index ca91451..b2f6a86 100644
--- a/lact-daemon/src/server/handler.rs
+++ b/lact-daemon/src/server/handler.rs
@@ -921,6 +921,7 @@ fn load_controllers(base_path: &Path) -> anyhow::Result<BTreeMap<String, Box<dyn
         }
     });
 
+    #[cfg(not(test))]
     let nvml: LazyCell<Option<Rc<Nvml>>> = LazyCell::new(|| match Nvml::init() {
         Ok(nvml) => {
             info!("Nvidia management library loaded");
@@ -931,7 +932,10 @@ fn load_controllers(base_path: &Path) -> anyhow::Result<BTreeMap<String, Box<dyn
             None
         }
     });
+    #[cfg(test)]
+    let nvml: LazyCell<Option<Rc<Nvml>>> = LazyCell::new(|| None);
 
+    #[cfg(not(test))]
     let amd_drm: LazyCell<Option<LibDrmAmdgpu>> = LazyCell::new(|| match LibDrmAmdgpu::new() {
         Ok(drm) => {
             info!("AMDGPU DRM initialized");
@@ -942,6 +946,8 @@ fn load_controllers(base_path: &Path) -> anyhow::Result<BTreeMap<String, Box<dyn
             None
         }
     });
+    #[cfg(test)]
+    let amd_drm: LazyCell<Option<LibDrmAmdgpu>> = LazyCell::new(|| None);
 
     for entry in base_path
         .read_dir()