Bin Li (binli) found the root cause, it's related to compiz, after upgrade compzi to 1:0.9.7.12-0ubuntu2, it will met this issue.
And it's one potential issue when made the better performance for compiz.
+ * Performance note: unredirectable.evaluate is SLOW because it
+ * involves regex matching. Too slow to do on every window for
+ * every frame. So we only call it if a window is redirected AND
+ * potentially needs unredirecting. This means changes to
+ * unredirect_match while a window is unredirected already may not
+ * take effect until it is un-fullscreened again. But that's better
+ * than the high price of regex matching on every frame.
And for more information please view below related bugs.
Bin Li (binli) found the root cause, it's related to compiz, after upgrade compzi to 1:0.9.7. 12-0ubuntu2, it will met this issue.
And it's one potential issue when made the better performance for compiz.
+ * Performance note: unredirectable. evaluate is SLOW because it
+ * involves regex matching. Too slow to do on every window for
+ * every frame. So we only call it if a window is redirected AND
+ * potentially needs unredirecting. This means changes to
+ * unredirect_match while a window is unredirected already may not
+ * take effect until it is un-fullscreened again. But that's better
+ * than the high price of regex matching on every frame.
And for more information please view below related bugs.
blacklist_ precise_ mesa80_ intel_nouveau. patch (bug#1167321)
fix_1095001.patch (bug#1095001)
This bug is requesting to change the patch mentioned above to fix the issue in bug description.