diff --git a/linux/AmdMemTweak.cpp b/linux/AmdMemTweak.cpp
index f28ff54..0990fc6 100644
--- a/linux/AmdMemTweak.cpp
+++ b/linux/AmdMemTweak.cpp
@@ -31,7 +31,7 @@
 #include <unistd.h> // close lseek read write
 #include <fcntl.h> // open
 #include <dirent.h> // opendir readdir closedir
-
+#include <regex.h>
 extern "C" {
 #include "pci/pci.h" // full path /usr/local/include/pci/pci.h
 }
@@ -71,6 +71,7 @@ bool IsRelevantDeviceID(struct pci_dev* dev)
 		(dev->device_id == 0x6867) || // Vega 10 XL [Radeon Pro Vega 56]
 		(dev->device_id == 0x6863) || // Vega 10 XTX [Radeon Vega Frontier Edition]
 		(dev->device_id == 0x67df) || // Ellesmere [Radeon RX 470/480/570/570X/580/580X/590]
+		(dev->device_id == 0x6fdf) || // Ellesmere [Radeon RX 580SP]
 		(dev->device_id == 0x67c4) || // Ellesmere [Radeon Pro WX 7100]
 		(dev->device_id == 0x67c7) || // Ellesmere [Radeon Pro WX 5100]
 		(dev->device_id == 0x67ef) || // Baffin [Radeon RX 460/560D / Pro 450/455/460/555/555X/560/560X]
@@ -1475,14 +1476,25 @@ int main(int argc, const char* argv[])
 	pci_init(pci);
 	pci_scan_bus(pci);
 	int gpuCount = 0;
+	regex_t regex;
+	if (regcomp(&regex, "(Kaveri|Beavercreek|Sumo|Wrestler|Kabini|Mullins|Temash|Trinity|Richland|Stoney|Carrizo|Raven)", REG_ICASE | REG_EXTENDED) != 0){
+		fprintf(stderr, "regcomp: error");
+		return 1;
+	}
 	for (struct pci_dev* dev = pci->devices; dev; dev = dev->next)
 	{
 		pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_ROM_BASE | PCI_FILL_SIZES | PCI_FILL_CLASS);
+		char buffer[1024];
+		char* name = pci_lookup_name(pci, buffer, sizeof(buffer), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id);
+        if (regexec(&regex, buffer, 0, NULL, 0) == 0) {
+            continue;
+        }
 		if (IsAmdDisplayDevice(dev))
 		{
 			gpus[gpuCount++].dev = dev;
 		}
 	}
+	regfree(&regex);
 
 	if (gpuCount == 0)
 	{
@@ -1506,6 +1518,7 @@ int main(int argc, const char* argv[])
 		if (instance == -1)
 		{
 			fprintf(stderr, "Cannot find DRI instance for pci:%s\n", buffer);
+			continue;
 			return 1;
 		}
 
@@ -1514,6 +1527,7 @@ int main(int argc, const char* argv[])
 		if (gpu->mmio == -1)
 		{
 			fprintf(stderr, "Failed to open %s\n", buffer);
+			// continue;
 			return 1;
 		}
 
@@ -1589,8 +1603,8 @@ int main(int argc, const char* argv[])
 		for (int index = 0; index < gpuCount; index++)
 		{
 			GPU* gpu = &gpus[index];
-			char buffer[1024];
-			char* name = pci_lookup_name(pci, buffer, sizeof(buffer), PCI_LOOKUP_DEVICE, gpu->dev->vendor_id, gpu->dev->device_id);
+			// char buffer[1024];
+			// char* name = pci_lookup_name(pci, buffer, sizeof(buffer), PCI_LOOKUP_DEVICE, gpu->dev->vendor_id, gpu->dev->device_id);
 			if (gpu->dev && IsRelevantDeviceID(gpu->dev))
 			{
 				printf("Scanning GPU %d\n", index);