Hi alienpup,
can you please follow the instructions I'm quoting below too?
alienpup:
>> Just a hunch, but I'm starting to suspect the upgraded libdrm (or
>> a friend of theirs) needs to access files that are not covered by the
>> AppArmor policy shipped in Debian Stretch.
>>
>> Could you please, after reproducing the error:
>>
>> - either send a WhisperBack report, asking our help desk to forward
>> it to me
>> - or run the following command and send me the output:
>>
>> sudo journalctl | grep DENIED
Thanks in advance!
--
intrigeri