diff --git a/debian/changelog b/debian/changelog
index 8938b49c8..01f85c68b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,25 @@
+deepin-devicemanager (6.0.74) unstable; urgency=medium
+
+  * chore: Update version to 6.0.74
+  * fix(cpu): Fix CPU vendor info from dmidecode
+  * fix: correct SPDX copyright year separator to hyphen
+  * fix: replace busy-wait spin with waitForDone in ThreadPool
+  * fix: remove m_CoreId check in logicalIsExisted
+  * fix: use find() to avoid implicit map insert and fix SPDX copyright header
+  * fix: strip /sys prefix precisely in isPathExisted
+  * fix: use exact match for dpkg process name in isDpkgLocked
+  * test(unittest): add unit tests for deepin-devicemanager-server modules
+  * fix: distinguish ENOENT from lock in isFileLocked
+  * fix: add TTL cache invalidation for GPU info and update SPDX year
+  * fix: prevent QMap silent insert and update SPDX year
+  * test(unittest): enhance tests for ArmGenerator, X86Generator and DBusAnythingInterface
+  * test(unittest): add unit tests for ArmGenerator and X86Generator
+  * test(unittest): add unit tests for DetailButton, DetailSeperator and ScrollAreaWidget
+  * test(unittest): add unit tests for PageDriverInstallInfo and DBusAnythingInterface
+  * fix: correct target view in setCheckedCBDisnable
+
+ -- zhanghongyuan <zhanghongyuan@uniontech.com>  Thu, 15 Oct 2026 11:43:48 +0800
+
 deepin-devicemanager (6.0.73) unstable; urgency=medium
 
   * chore: Update version to 6.0.73
diff --git a/deepin-devicemanager/src/GenerateDevice/CmdTool.cpp b/deepin-devicemanager/src/GenerateDevice/CmdTool.cpp
index e655d201c..3f3d496fe 100644
--- a/deepin-devicemanager/src/GenerateDevice/CmdTool.cpp
+++ b/deepin-devicemanager/src/GenerateDevice/CmdTool.cpp
@@ -742,7 +742,7 @@ void CmdTool::addWidthToMap(QMap<QString, QString> &mapInfo)
     sInfo = process.readAllStandardOutput();
     QStringList lines = sInfo.split("\n");
     foreach (const QString &line, lines) {
-        QRegularExpression reg("\\s\\sAttribute\\s'GPUMemoryInterface' \\(.*\\):\\s([0-9]{2}).*");
+        QRegularExpression reg("\\s\\sAttribute\\s'GPUMemoryInterface' \\(.*\\):\\s([0-9]+).*");
         if (reg.match(line).hasMatch()) {
             mapInfo.insert("Width", reg.match(line).captured(1) + " bits");
             // qCDebug(appLog) << "Found width:" << mapInfo["Width"];
diff --git a/deepin-devicemanager/tests/src/GenerateDevice/ut_cmdtool_parse.cpp b/deepin-devicemanager/tests/src/GenerateDevice/ut_cmdtool_parse.cpp
index 731e2a1f9..f65322f09 100644
--- a/deepin-devicemanager/tests/src/GenerateDevice/ut_cmdtool_parse.cpp
+++ b/deepin-devicemanager/tests/src/GenerateDevice/ut_cmdtool_parse.cpp
@@ -7,10 +7,13 @@
 
 #include "CmdTool.h"
 #include "ut_Head.h"
+#include "stub.h"
 
 #include <QMap>
 #include <QString>
 #include <QStringList>
+#include <QProcess>
+#include <QByteArray>
 
 #include <gtest/gtest.h>
 
@@ -123,12 +126,47 @@ TEST_F(UT_CmdToolParse, getMulHwinfoInfo)
     EXPECT_NO_FATAL_FAILURE(tool->getMulHwinfoInfo("block1\nblock2\n"));
 }
 
-// addWidthToMap
-TEST_F(UT_CmdToolParse, addWidthToMap)
+// addWidthToMap: 非 NVIDIA 显卡提前返回(不进入正则解析)
+TEST_F(UT_CmdToolParse, addWidthToMap_nonNvidia)
 {
     QMap<QString, QString> m;
-    m["width"] = "64 bits";
+    m["Vendor"] = "Intel Corporation";
     EXPECT_NO_FATAL_FAILURE(tool->addWidthToMap(m));
+    EXPECT_FALSE(m.contains("Width"));
+}
+
+// QProcess 桩: 模拟 nvidia-settings 输出(256 bits,三位数位宽)
+static void ut_addWidth_start(QProcess * /*self*/, const QString & /*p*/,
+                              const QStringList & /*a*/, QIODevice::OpenMode /*m*/)
+{
+    return;
+}
+static bool ut_addWidth_wait(QProcess * /*self*/, int /*msecs*/)
+{
+    return true;
+}
+static QByteArray ut_addWidth_read(QProcess * /*self*/)
+{
+    return QByteArray(
+        "  Attribute 'GPUMemoryInterface' (host:0[gpu:0]): 256.\n");
+}
+
+// addWidthToMap: NVIDIA 显卡,正则正确捕获三位数位宽 256
+TEST_F(UT_CmdToolParse, addWidthToMap_nvidia_256bits)
+{
+    QMap<QString, QString> m;
+    m["Vendor"] = "NVIDIA Corporation";
+
+    Stub stub;
+    stub.set(((void (QProcess::*)(const QString &, const QStringList &,
+                                  QIODevice::OpenMode))ADDR(QProcess, start)),
+             ut_addWidth_start);
+    stub.set(((bool (QProcess::*)(int))ADDR(QProcess, waitForFinished)),
+             ut_addWidth_wait);
+    stub.set(ADDR(QProcess, readAllStandardOutput), ut_addWidth_read);
+
+    tool->addWidthToMap(m);
+    EXPECT_EQ(m.value("Width"), QString("256 bits"));
 }
 
 // getSMBIOSVersion