It turns out the default AccelMethod of xdriver “intel” has been changed to EXA, and it’s a known issue that EXA does not work with compiz. So I force the AccelMethod to “XAA” and compiz works again now.
It turns out the default AccelMethod of xdriver “intel” has been changed to EXA, and it’s a known issue that EXA does not work with compiz. So I force the AccelMethod to “XAA” and compiz works again now.