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Thunderbird does not start and freezes




In sid, trying to launch thunderbird does do anything and freezes the
system (mouse works but cannot act on windows, going to tty works).

dmesg says:

[   13.676445] audit: type=1400 audit(1527426637.518:35): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   13.676503] audit: type=1400 audit(1527426637.518:36): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   13.676624] audit: type=1400 audit(1527426637.518:37): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   13.676692] audit: type=1400 audit(1527426637.518:38): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   13.681934] audit: type=1400 audit(1527426637.526:39): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   13.682129] audit: type=1400 audit(1527426637.526:40): apparmor="DENIED" operation="open" profile="thunderbird" name="/sys/devices/pci0000:00/0000:00:02.0/vendor" pid=1880 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[   14.560466] audit: type=1400 audit(1527426638.402:41): apparmor="DENIED" operation="open" profile="thunderbird" name="/home/pierre/.icons/icon-theme.cache" pid=1867 comm="thunderbird" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000

Any idea?