PDF page size incorrect in presentation mode

[René Walendy]

Evince occasionally does not enlarge pages to fit the screen when entering presentation mode. This can be reproduced with various PDF files.

The easiest and most reliable way to reproduce the bug is:
1) open a PDF file with Evince
2) press F5 to enter presentation mode
3) press ESC to return to windowed mode and immediately press F5 again
4) maybe repeat (3) this a few times until the bug triggers

This is, however, not the only action that triggers this bug. Quickly scrolling to the next page and then immediately pressing F5 also works, although I need a few attempts to get the timing right.

My assumption (although without having looked at the code) is that there is some kind of race condition going on.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: evince 3.28.2-1
ProcVersionSignature: Ubuntu 4.15.0-24.26-generic 4.15.18
Uname: Linux 4.15.0-24-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 23 18:09:36 2018
ExecutablePath: /usr/bin/evince
ProcEnviron:
 XDG_RUNTIME_DIR=<set>
 SHELL=/bin/zsh
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
SourcePackage: evince
UpgradeStatus: No upgrade log present (probably fresh install)

[René Walendy (0k53-rene-f830)]

Side note: If you do the ESC-then-F5 keystroke really, really fast, Evince sometimes ends up in full screen mode (that you would normally get with F11) and then hangs and crashes.