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Diffstat (limited to 'src/sna/sna_dri2.c')
-rw-r--r--src/sna/sna_dri2.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/sna/sna_dri2.c b/src/sna/sna_dri2.c
index 0b343cec..be5d8141 100644
--- a/src/sna/sna_dri2.c
+++ b/src/sna/sna_dri2.c
@@ -1560,11 +1560,13 @@ can_flip(struct sna * sna,
if (draw->type == DRAWABLE_PIXMAP)
return false;
- if (!sna->scrn->vtSema) {
- DBG(("%s: no, not attached to VT\n", __FUNCTION__));
+ if (!sna->mode.front_active) {
+ DBG(("%s: no, active CRTC\n", __FUNCTION__));
return false;
}
+ assert(sna->scrn->vtSema);
+
if ((sna->flags & (SNA_HAS_FLIP | SNA_HAS_ASYNC_FLIP)) == 0) {
DBG(("%s: no, pageflips disabled\n", __FUNCTION__));
return false;