Ok, seems installed, I'll report on the other bug id next time :
$ dpkg -l| grep dbgsym ii libgl1-mesa-dri-dbgsym:amd64 20.2.6-0ubuntu0.20.04.1 amd64 debug symbols for libgl1-mesa-dri ii xserver-xorg-core-dbgsym 2:1.20.9-2ubuntu1.2~20.04.1 amd64 debug symbols for xserver-xorg-core
Ok, seems installed, I'll report on the other bug id next time :
$ dpkg -l| grep dbgsym mesa-dri- dbgsym: amd64 20.2.6- 0ubuntu0. 20.04.1 amd64 debug symbols for libgl1-mesa-dri xorg-core- dbgsym 2:1.20. 9-2ubuntu1. 2~20.04. 1 amd64 debug symbols for xserver-xorg-core
ii libgl1-
ii xserver-