diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp
index 31a3c006..623c27b7 100644
--- a/src/ipa/ipu3/ipu3.cpp
+++ b/src/ipa/ipu3/ipu3.cpp
@@ -12,6 +12,7 @@
 #include <linux/v4l2-controls.h>
 
 #include <libcamera/base/log.h>
+#include <libcamera/logging.h>
 
 #include <libcamera/buffer.h>
 #include <libcamera/control_ids.h>
@@ -39,6 +40,7 @@ class IPAIPU3 : public IPAIPU3Interface
 public:
 	int init([[maybe_unused]] const IPASettings &settings) override
 	{
+		logSetFile("/tmp/isolated.log");
 		return 0;
 	}
 	int start() override;
diff --git a/src/libcamera/ipa_manager.cpp b/src/libcamera/ipa_manager.cpp
index b4606c61..5d8ddae1 100644
--- a/src/libcamera/ipa_manager.cpp
+++ b/src/libcamera/ipa_manager.cpp
@@ -258,6 +258,7 @@ unsigned int IPAManager::addDir(const char *libDir, unsigned int maxDepth)
 
 bool IPAManager::isSignatureValid([[maybe_unused]] IPAModule *ipa) const
 {
+	return false;
 #if HAVE_IPA_PUBKEY
 	File file{ ipa->path() };
 	if (!file.open(File::ReadOnly))