Hi, Am 15.10.18 um 03:21 schrieb Tim Connors: > Package: thunderbird > Version: 1:60.0-3~deb9u1 > Severity: important > > At thunderbird startup, I get a completely blank display, associated > with terminal message: [GFX1-]: Failed to lock new back buffer. > > (I presume this bug should be grave, but how can I be the only person > on the planet affected by it? The package is completely unusable to > me as of the update.)
if it is related to AppArmor then the answer is simply No because the AppArmor profile is disabled by default. > At each focus event thereafter, the window flashes, and a system log > message is output: > > Oct 15 12:06:27 weinberg kernel: [233610.647925] audit: type=1400 > audit(1539565587.008:2707): apparmor="DENIED" operation="mknod" > profile="thunderbird" name="/run/shm/org.chromium.viOLay" pid=20087 > comm="thunderbird" requested_mask="c" denied_mask="c" fsuid=2983 ouid=2983 > > (different /run/shm/ tmp dir everytime) > > Stale apparmor profile affecting latest security update? Looks like > #887973 but that was claimed to have been fixed in a version far far > away. > > /etc/apparmor.d/usr.bin.thunderbird, provided by this version of > thunderbird, still references only /dev/shm: > > owner /dev/shm/org.chromium.* rw, # for Chromium IPC > > > I note also this report: > https://lists.dyne.org/lurker/message/20180918.101827.26f69559.de.html > > But users shouldn't be updating /etc/apparmor.d files that are the > responsibility of the package. Hm, I still don't see what this report is about. It looks like it this is related to AppArmor. What have you done to get clearance on this? Have you an enabled or a disabled AppArmor profile? I guess you are running an active profile for Thunderbird. Do you have checked if any AddOn is possibly provoking your issues? https://wiki.debian.org/Thunderbird#Bug_Reporting_.2F_Issues -- Regards Carsten Schoenert
