Changeset 62415 in vbox for trunk/src/VBox/Additions/WINNT/VBoxTray

Timestamp:

Jul 22, 2016 9:44:49 AM (8 years ago)

Author:

vboxsync

Message:

WDDM: VBoxTray: bugref:8440: reset target info for SetDisplayConfig.

File:

• trunk/src/VBox/Additions/WINNT/VBoxTray/VBoxDispIf.cpp (modified) (1 diff)

trunk/src/VBox/Additions/WINNT/VBoxTray/VBoxDispIf.cpp

@@ -356 +356 @@
     pCfg->pPathInfoArray[idx].targetInfo.modeInfoIdx = DISPLAYCONFIG_PATH_MODE_IDX_INVALID;
 
+    /* "A refresh rate with both the numerator and denominator set to zero indicates that
+     * the caller does not specify a refresh rate and the operating system should use
+     * the most optimal refresh rate available. For this case, in a call to the SetDisplayConfig
+     * function, the caller must set the scanLineOrdering member to the
+     * DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED value; otherwise, SetDisplayConfig fails."
+     *
+     * If a refresh rate is set to a value, then the resize will fail if miniport driver
+     * does not support VSync, i.e. with display-only driver on Win8+ (@bugref{8440}).
+     */
+    pCfg->pPathInfoArray[idx].targetInfo.refreshRate.Numerator = 0;
+    pCfg->pPathInfoArray[idx].targetInfo.refreshRate.Denominator = 0;
+    pCfg->pPathInfoArray[idx].targetInfo.scanLineOrdering = DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED;
+
+    /* Make sure that "The output can be forced on this target even if a monitor is not detected." */
+    pCfg->pPathInfoArray[idx].targetInfo.targetAvailable = TRUE;
+    pCfg->pPathInfoArray[idx].targetInfo.statusFlags |= DISPLAYCONFIG_TARGET_FORCIBLE;
+
     if (fEnable)
         pCfg->pPathInfoArray[idx].flags |= DISPLAYCONFIG_PATH_ACTIVE;