backends/drm: re-allow HDR on NVidia with driver version 565.57.01+

The bug that made me disable it by default was fixed in that version

CCBUG: 488941

src/backends/drm/drm_gpu.cpp

@@ -24,17 +24,17 @@
 #include "drm_output.h"
 #include "drm_pipeline.h"
 #include "drm_plane.h"
-// system
+
+#include <QFile>
 #include <algorithm>
+#include <drm_fourcc.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <gbm.h>
+#include <libdrm/drm_mode.h>
 #include <poll.h>
 #include <ranges>
 #include <unistd.h>
-// drm
-#include <drm_fourcc.h>
-#include <gbm.h>
-#include <libdrm/drm_mode.h>
 #include <xf86drm.h>
 #include <xf86drmMode.h>
 
@@ -86,6 +86,12 @@ DrmGpu::DrmGpu(DrmBackend *backend, int fd, std::unique_ptr<DrmDevice> &&device)
     m_isVmwgfx = strstr(version->name, "vmwgfx");
     m_isVirtualMachine = strstr(version->name, "virtio") || strstr(version->name, "qxl")
         || strstr(version->name, "vmwgfx") || strstr(version->name, "vboxvideo");
+    if (m_isNVidia) {
+        QFile moduleVersion("/sys/module/nvidia_drm/version");
+        if (moduleVersion.open(QIODeviceBase::OpenModeFlag::ReadOnly)) {
+            m_nvidiaDriverVersion = Version::parseString(moduleVersion.readLine(100));
+        }
+    }
 
     m_socketNotifier = std::make_unique<QSocketNotifier>(fd, QSocketNotifier::Read);
     connect(m_socketNotifier.get(), &QSocketNotifier::activated, this, &DrmGpu::dispatchEvents);
@@ -676,6 +682,11 @@ bool DrmGpu::isVirtualMachine() const
     return m_isVirtualMachine;
 }
 
+std::optional<Version> DrmGpu::nvidiaDriverVersion() const
+{
+    return m_nvidiaDriverVersion;
+}
+
 bool DrmGpu::isRemoved() const
 {
     return m_isRemoved;

src/backends/drm/drm_gpu.h

@@ -11,6 +11,7 @@
 #include "core/drmdevice.h"
 #include "drm_pipeline.h"
 #include "utils/filedescriptor.h"
+#include "utils/version.h"
 
 #include <QList>
 #include <QPointer>
@@ -87,6 +88,7 @@ public:
     bool isAmdgpu() const;
     bool isVmwgfx() const;
     bool isVirtualMachine() const;
+    std::optional<Version> nvidiaDriverVersion() const;
     EglDisplay *eglDisplay() const;
     DrmBackend *platform() const;
     /**
@@ -150,6 +152,7 @@ private:
     clockid_t m_presentationClock;
     std::unique_ptr<EglDisplay> m_eglDisplay;
     DrmBackend *const m_platform;
+    std::optional<Version> m_nvidiaDriverVersion;
 
     std::vector<std::unique_ptr<DrmPlane>> m_planes;
     std::vector<std::unique_ptr<DrmCrtc>> m_crtcs;

src/backends/drm/drm_output.cpp

@@ -259,7 +259,7 @@ Output::Capabilities DrmOutput::computeCapabilities() const
         if (m_gpu->isI915()) {
             allowColorspace &= s_allowColorspaceIntel || linuxKernelVersion() >= Version(6, 11);
         } else if (m_gpu->isNVidia()) {
-            allowColorspace &= s_allowColorspaceNVidia;
+            allowColorspace &= s_allowColorspaceNVidia || m_gpu->nvidiaDriverVersion() >= Version(565, 57, 1);
         }
         if (allowColorspace) {
             capabilities |= Capability::WideColorGamut;