Query if kernel supports the async_flip cap, thereby needs the new sync behavior. Linux 3.13+ nouveau-kms have this cap and need this fix.
4d92001 Add kernel async_flip cap detection. Part II of double-sync fix.
src/nv_driver.c | 11 +++++++++++
1 file changed, 11 insertions(+)
Upstream: cgit.freedesktop.org