From dd6b5ed8b9a8166907df5f5b8fd09da0939325da Mon Sep 17 00:00:00 2001
From: GershonWang <wangshengshan011@163.com>
Date: Tue, 14 Jul 2026 10:40:56 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20Intel=E6=A0=B8=E6=98=BE=E5=9B=9E?=
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Intel 核显无 hwmon/gpu_busy_percent/mem_info_vram 等 sysfs 接口，
增加回退逻辑：
- 温度：扫描 thermal_zone 匹配 B0D4（Intel GPU ACPI 标识）
- 显存：读取 /proc/meminfo 获取系统共享内存总量和已用量
- GPU 使用率：Skylake i915 不支持，仍显示占位符
---
 graphicsdriverapplet.cpp | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/graphicsdriverapplet.cpp b/graphicsdriverapplet.cpp
index 76fcfd8..02a5237 100644
--- a/graphicsdriverapplet.cpp
+++ b/graphicsdriverapplet.cpp
@@ -395,6 +395,52 @@ void GraphicsDriverApplet::readGpuStats()
                 }
             }
         }
+
+        // --- 以下为 Intel 核显等无 hwmon/vram sysfs 接口时的回退逻辑 ---
+
+        // 温度回退：扫描 thermal_zone，匹配 Intel GPU 的 ACPI 标识 (B0D4)
+        // B0D4 是 Intel GPU 在 ACPI 规范中的标准热区标识
+        if (gpu.temperature < 0) {
+            QDir thermalDir("/sys/class/thermal");
+            QStringList zones = thermalDir.entryList(QStringList() << "thermal_zone*", QDir::Dirs | QDir::NoDotAndDotDot);
+            for (const QString &zone : zones) {
+                QFile typeFile(thermalDir.absoluteFilePath(zone + "/type"));
+                if (typeFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+                    QString type = QTextStream(&typeFile).readAll().trimmed();
+                    if (type == "B0D4") {
+                        QFile tempFile(thermalDir.absoluteFilePath(zone + "/temp"));
+                        if (tempFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+                            int tempMilli = QTextStream(&tempFile).readAll().trimmed().toInt();
+                            gpu.temperature = tempMilli / 1000;
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+
+        // 显存回退：Intel 核显使用共享系统内存，读取 /proc/meminfo 作为参考
+        // 注意：这是系统内存使用量，非核显独占，仅作参考
+        if (gpu.memTotal < 0) {
+            QFile meminfo("/proc/meminfo");
+            if (meminfo.open(QIODevice::ReadOnly | QIODevice::Text)) {
+                QString content = QTextStream(&meminfo).readAll();
+                QRegularExpression totalRe("MemTotal:\\s*(\\d+)\\s*kB");
+                QRegularExpression availRe("MemAvailable:\\s*(\\d+)\\s*kB");
+                auto totalMatch = totalRe.match(content);
+                auto availMatch = availRe.match(content);
+                if (totalMatch.hasMatch()) {
+                    gpu.memTotal = totalMatch.captured(1).toLongLong() / 1024; // kB -> MB
+                }
+                if (availMatch.hasMatch() && gpu.memTotal > 0) {
+                    qint64 availMB = availMatch.captured(1).toLongLong() / 1024;
+                    gpu.memUsed = gpu.memTotal - availMB;
+                    if (gpu.memUsed >= 0) {
+                        gpu.memUsage = gpu.memUsed * 100 / gpu.memTotal;
+                    }
+                }
+            }
+        }
     }
 
     // 生成统计数据 (格式: temp|gpuUsage|memUsage|memUsed|memTotal)