otherwise client would wait for reply forever and desktop appears hang.

Signed-off-by: Flora Cui <flora....@amd.com>
---
 src/amdgpu_dri2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/amdgpu_dri2.c b/src/amdgpu_dri2.c
index 44316ac..34353a7 100644
--- a/src/amdgpu_dri2.c
+++ b/src/amdgpu_dri2.c
@@ -1062,6 +1062,9 @@ static int amdgpu_dri2_schedule_wait_msc(ClientPtr 
client, DrawablePtr draw,
 out_complete:
        if (wait_info)
                amdgpu_dri2_deferred_event(NULL, 0, wait_info);
+
+       DRI2WaitMSCComplete(client, draw, target_msc, 0, 0);
+
        return TRUE;
 }
 
-- 
2.7.4

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