> I can open it without any problem with okular in a Buster distro. Did > you make any upgrade of graphics driver, or change or whatever about > graphic drivers? > > Leopold
Probably... I run apt update/upgrade every few days and probably something changed, but I do not know what. From Dr Konqi traceback I can see problems in iris_dri.so, so maybe it is an Intel Graphics issue? a Mesa issue? Until now Okular is the only program where I noticed problems.