Buster: torstatus@tails.boum.org makes GNOME Shell crashes when unlocking the screen or restoring from suspend

Quoting alienpup’s report on tails-testers today:

I’ve just retested all three systems using this .img file:

tails-amd64-feature_buster-3.17-20190606T0917Z-835f745c59+devel@2f96ace13e.img

I found one new regressions relative to 3.14:

All three systems fail to fully restore from suspend. More specifically, they do, but X graphics appears correctly for only for 1-2 seconds, after which the screen blanks again before a only portion of the screen returns. At this point X no longer responds. On the two Intel based laptops, the mouse is inoperative. On the AMD based desktop, the mouse remains operative, but nothing on-screen responds (to mouse or keyboard). All three systems are still running at this point, and I can CTRL+ALT to a vterm and log in (password set at boot). Running top reveals Xorg is sleeping, consuming “0” cpu and minimal RAM.

Feature Branch: https://salsa.debian.org/tails-team/tails/merge_requests/28

Related issues

• Blocks #16209
• Blocks #16755 (closed)

Original created by @intrigeri on 16791 (Redmine)