The emails related to this symptom and pathces have appeared in the dri-devel mailing list as below:
https://lists.freedesktop.org/archives/dri-devel/2021-January/295093.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295094.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295083.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295086.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295111.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295121.html https://lists.freedesktop.org/archives/dri-devel/2021-January/295122.html Ryutaroh
