Change the registry checking logic we already have, instead of enabling
surfaces by default we now disable surfaces by default. They can be
enabled without driver change by creating a registry key name
"SurfacesEnabled" of type DWORD with any value under the adapter key.
To find the adapter key, one way is looking for the key under which
there is a value of name "QxlDeviceID" after a successfull startup of
the qxl driver.
---
xddm/miniport/qxl.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/xddm/miniport/qxl.c b/xddm/miniport/qxl.c
index 69d1b16..33efac7 100644
--- a/xddm/miniport/qxl.c
+++ b/xddm/miniport/qxl.c
@@ -1046,16 +1046,18 @@ static UINT8 check_non_primary_surfaces_registry_key(QXLExtension *dev_ext)
ret = VideoPortGetRegistryParameters(
dev_ext,
- L"DisableSurfaces",
+ L"SurfacesEnabled",
FALSE,
QXLRegistryCallback,
&key_ret);
if (ret == ERROR_INVALID_PARAMETER) {
- dev_ext->create_non_primary_surfaces = 1;
- DEBUG_PRINT((dev_ext, 0, "%s: CreateNonPrimarySurfaces key doesn't exist, default to 1\n",
+ dev_ext->create_non_primary_surfaces = 0;
+ DEBUG_PRINT((dev_ext, 0, "%s: SurfacesEnabled key doesn't exist, disabling surfaces\n",
__FUNCTION__));
} else {
- dev_ext->create_non_primary_surfaces = 0;
+ dev_ext->create_non_primary_surfaces = 1;
+ DEBUG_PRINT((dev_ext, 0, "%s: SurfacesEnabled key exists, enabling surfaces\n",
+ __FUNCTION__));
}
return dev_ext->create_non_primary_surfaces;
}
--
1.8.3.1
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